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It’s time to scale: Emerging lessons from decades of Conservation Agriculture research in Southern Africa

Written by Julian Bañuelos-Uribe on . Posted in Blogs.

CA in action at the farmer level. (Photo: Christian Thierfelder/CIMMYT)

For decades, smallholder farmers in Southern Africa have battled the whims of a changing climate—from withered crops to yield reductions and looming food insecurity concerns. And the outlook is not improving. Based on the latest available science, the sixth assessment report of the Intergovernmental Panel on Climate Change (IPCC) reaffirms the projected negative impacts of climate change on livelihoods in Southern Africa.

Conservation Agriculture (CA) has been considered as an important step to make smallholder farming systems climate smart and resilient. The principles of CA are simple yet potent: minimal soil disturbance, crop cover, and diverse rotations, which tend to have lasting implications on rebuilding soil health, conserving moisture, and nurturing a thriving ecosystem. A strong evidence base from on-farm and on-station trials show that CA has the potential to build the adaptive capacity and resilience of smallholder farming systems to climate stress.

Yet, despite the positive results, significant scaling gaps remain. Key questions arise on what can be done to turn the tide, scale, and encourage uptake. What institutional, policy and economic incentives would enable scaling? Could mechanization be the missing link? The Understanding and Enhancing Adoption of Conservation Agriculture in Smallholder Farming Systems of Southern Africa (ACASA) project responds to these questions. With funding from the Norwegian Agency for Development Cooperation (NORAD) and implemented by the International Institute of Tropical Agriculture (IITA), and CIMMYT, the ACASA project goes beyond the narrow focus on promotion and technology delivery of past and ongoing interventions on CA in Southern Africa.

ACASA was designed to help stakeholders gain deeper understanding of the interactions between the socio-economic, biophysical, and institutional constraints and opportunities for adoption of CA practices. To do this, the project has undertaken extensive surveys aimed at understanding incentives, drivers, and barriers of CA adoption across Zambia, Malawi, and Zimbabwe.

Dialogues for change

Participants from across the region during the reflective meeting. (Photo: CIMMYT)

In December 2023, CIMMYT collaborated with IITA and the Ministry of Lands, Agriculture, Fisheries, Water and Rural Development of Zimbabwe to convene a highly engaging, reflective, and learning meeting, with the participation of government representatives, the private sector, and research institutes, among others. The primary objective was to share valuable insights accumulated over years of research and development on conservation agriculture in southern Africa. These insights are a result of collaborative efforts in social science, scaling, and mechanization work by CIMMYT, IITA, and extension and research partners in Malawi, Zambia, and Zimbabwe. Conversations centered on tracing the historical pathway of CA, leveraging mechanization, and identifying key enablers to transform smallholder agriculture.

Tracing the pathway of conservation agriculture

For decades, CIMMYT has been a leading force in promoting Conservation Agriculture. From the early stages in the 1990s, CIMMYT introduced CA principles and practices through on-farm and on-station field days, to undertaking robust research on biophysical impacts and developing adapted technologies in collaboration with national and global partners. As this research progressed and matured, efforts were made to integrate and focus on understanding the social and economic factors influencing CA adoption, while recognizing the significance of enabling environments. To date, linkages with mechanization and other innovations promoting CA-friendly equipment have been strengthened, ensuring inclusivity and empowerment. Questions remain around policy and institutional innovations to nudge and sustain adoption. In a nutshell, there is scope to borrow tools and methods from behavioral and experimental economics to better study and facilitate behavioral change among smallholder farmers. This snapshot highlights global efforts, grounded in scientific evidence, farmer centric approaches, and collaborative partnerships.

Insights from the field

Described as a data and evidence driven process, a notable highlight was the detailed gathering and analytical efforts using a large multi-country household survey involving 305 villages and 4,374 households across Malawi, Zambia, and Zimbabwe. The main thrust was not only to harvest data but listen to farmers and better understand their context while deciphering their decision-making processes concerning CA adoption, across the three countries. A compelling and hopeful story unfolds from the results. The adoption of CA practices such as crop residue retention, minimum tillage, crop rotation, and intercropping is much higher than previously thought, highlighting a crucial need for better targeted surveys. Key enablers to strengthen adoption include access to CA extension, hosting demonstrations, and access to credit. In addition, age, and extension in the case of Zambia were identified as important drivers of the speed and persistence of adoption. Demand for mechanization is rising, which is key to address drudgery associated with CA and to raise production efficiencies. Key recommendations centered on the need for investments in a dense network of farmer-centric learning centers that allow for experiential learning, facilitating equitable access to mechanization, promoting private sector participation, and developing integrated weed management options as weeds remain the Achilles Heel of CA adoption in the region. [1]

Emerging lessons

A deep dive on the findings reveals critical considerations for the widespread adoption of Conservation Agriculture (CA). Firstly, weed-related labor challenges pose a significant obstacle, with around 75% of farmers in three countries citing weeds as the most constraining issue during initial CA adoption. Addressing this weed management challenge is essential, emphasizing the need for environmentally safe, non-chemical solutions as a research priority. Secondly, there is a noticeable gap between scientific research on CA and farmer practices, primarily attributed to limited technical knowledge. Bridging this gap requires innovative approaches to translate scientific information into practical, farmer-centered products. Thirdly, incentivizing CA adoption through complementary input support programs, like payments for environmental services, may encourage farmers, especially when private returns are not immediate.

Fourthly, strengthening extension systems is crucial to facilitate farmer learning and bridge the awareness-to-know-how gap. Lastly, investing in improved machinery value chains can alleviate high labor costs and drudgery associated with CA practices, with economic estimates suggesting farmers’ willingness to pay for machinery hire services. These insights collectively highlight the multifaceted nature of challenges and opportunities for scaling up CA adoption.

Moving forward

ACASA’s research findings are not just numbers — they are seeds of hope. They point towards a future where CA adoption among smallholder farmers can transform the breadbasket of the three African countries, and beyond. CIMMYT and its partners remain committed to continuous learning, refining their approaches, and working hand-in-hand with farmers to nurture the CA revolution.

It will not be a pipe dream to transform agriculture in Southern Africa through CA by cultivating seeds of resilience, one at a time. This is because the experience from the region suggests that with the right political will, it is possible to mainstream CA as a critical adjunct to climate-smart agriculture strategies and resilience building. This broader institutional and political buy-in is important since CA programming cannot succeed without sector-wide approaches to removing systemic constraints to technology adoption.  A classic example is the Government-backed Pfumvudza program in Zimbabwe, which has seen adoption of planting basins conditioned on receipt of input subsidies soar to more than 90%.

[1] CIMMYT/IITA Scientists explore the weed issue in detail in a paper just accepted and forthcoming in Renewable Agriculture and Food Systems – Unanswered questions and unquestioned answers: The challenges of crop residue retention and weed control in Conservation Agriculture systems of southern Africa.

Regional network to scale impact of dryland crops in sub-Saharan Africa

Written by Julian Bañuelos-Uribe on . Posted in Blogs.

The Dryland Crops Program (DCP), in collaboration with National Agricultural Research and Extension Systems (NARES) partners, IITA, Alliance Bioversity & CIAT, and other African institutions, has established the African Dryland Crop Improvement Network (ADCIN). Aiming to strengthen partnerships and collaboration among partner institutions, the network focuses on improving dryland crops through crop enhancement. The ADCIN will have regional governance bodies in West and Central Africa (WCA) and Eastern and Southern Africa (ESA).

Consultative approach to establish ADCIN and governance structure

In 2021, CIMMYT was asked to lead a CGIAR varietal improvement and seed delivery project for dryland crops with an initial focus in Africa and funding from the Bill & Melinda Gates Foundation, the United States Agency for International Development (USAID), and the CGIAR Accelerated Breeding Initiative. This aligns with CIMMYT’s 2030 strategic objectives, which will contribute to shaping the future of agriculture to drive climate resilience, sustainable and inclusive agricultural development, and food and nutrition security.

As CIMMYT embarked on its work to further strengthen the work on dryland crops, it held a series of consultation meetings with several NARES in the region. A joint consultation workshop with NARES and CGIAR colleagues was held in Senegal in February 2022. This was followed by the broader network members and stakeholders meeting in Ghana in January 2023. These events brought together experts and representatives from the WCA and ESA regions and various partner institutions to discuss the best approaches to improve the impact of our work on dryland crops through crop improvement. Experts discussed within and across disciplines defining breeding targets using socio-economic and gender information, developing modern breeding processes and approaches, seed systems, data-science, and forging new models of partnerships.

Stakeholders from CGIAR and NARES convene in Ghana for a meeting. Experts, partner institutions, and representatives from the WCA and ESA regions, engage in comprehensive discussions to advance dryland crop improvement strategies. (Photo: Eagle Eye Projects)

One significant outcome of these meetings was the recommendation to establish a formal regional dryland crop improvement network to strengthen and enhance the current partnership among NARES and CGIAR partner institution and scientists. Establishing a governance structure for this network for effective coordination and monitoring of the network partnerships was also recommended. It was agreed that this network will have two regional bodies, one each in ESA and WCA, with their own steering committees.

Later in 2023, two initial regional steering committees were formed following consultations with CGIAR and NARES partners. The goal of the committees is to improve crop varieties in the region while ensuring equitable resource allocation and promoting collaboration among network partners. Each committee is expected to provide regional governance and oversight for the diverse dryland crop networks that operate in each region. Specific roles and responsibilities include prioritizing capacity development activities for network members, approving and allocating budgets for development plans, reviewing infrastructure needs, budgeting and accounting for investments, mobilizing resources from donors, coordinating collaboration among partners, monitoring and evaluating performance, supporting policy issues, and resolving disputes among members.

The African Dryland Crops Improvement Network (ADCIN) structure.

Critical role of steering committees for sustainability of ADCIN

The WCA steering committee comprises 14 members: 11 from NARES and three from CGIAR, met in Saly, Senegal in August 2023. The ESA committee comprises 12 members: nine from NARES and three from CGIAR, met in Nairobi, Kenya. Both committees explored their roles and responsibilities.

The ESA and WCA committees proposed, represented, and discussed several strategic areas. They developed and implemented strategies to enhance capacity and infrastructure, promote effective budget management, establish regional learning mechanisms, and lead resource mobilization to ensure sustained support for the DCP initiatives.

Members of the WCA Steering Committee meet in Senegal for a strategic meeting. (Photo: CIMMYT)

AlliThe committees also discussed the network’s vision, terms of reference, committees’ governance (by-laws), and a review of the network agreement. They also defined the network’s aspirations and aligned its resources to regional and national infrastructure needs and priorities.

A significant outcome from the meetings was CIMMYT’s allocation of US $1 million to the committees to facilitate personnel and infrastructure development. This budget allocation was decided upon after careful deliberation on how to best use the available resources to meet the network’s needs. Both committees then agreed to call for proposals in various capacity development areas.

They also elected the leadership for the committees. The WCA committee elected four officials: the chairperson, vice-chairperson, secretary, and financial secretary. The ESA committee elected three officials, including the chairperson, vice-chairperson, and secretary.

Subcommittees were also formed to oversee the operations of the steering committees and ensure a comprehensive approach to achieving the network’s goal. “These subcommittees are focused on capacity development, finance and monitoring, evaluation and learning and networks sustainability,” said Happy Daudi, the ESA steering committee secretary.

Kevin Pixley, director of CIMMYT’s Dryland Crops Program, highlighted the importance of regional steering committees in promoting agricultural progress, food security, nutritional stability, resources, and partnerships.

“The creation of the ADCIN marks a pivotal moment in our collective journey towards sustainable agricultural development,” said Pixley. “By bringing together the expertise and resources of CGIAR and NARES partners, ADCIN embodies our shared commitment to turning the challenges of dryland agriculture into opportunities for growth, resilience, and prosperity for the farmers and the communities we serve.”

The meetings also provided an opportunity for the committees to initiate the selection of a unified name for the network. The African Dryland Crop Improvement Network (ADCIN) was decided through a consensus-driven naming process among network members.

The ADCIN also establishes a critical support network for Africa-NARES and breeding programs through the ESA and WCA regional networks, allowing them to co-design and co-implement projects, leverage regional resources and capacity, and sustain dryland crop improvement activities through alignment of investment with priorities, capacity building, and connect the network to other initiatives.

Accelerating progress: from governance to brand identity

Subsequently, the two committees met in December 2023 to discuss and finalize previously discussed key areas. Significant progress had been made in reviewing and confirming the terms of reference and bylaws, which are required for smooth operations and a clear understanding of the governance structure among all the network members.

Following a thorough review and deliberation, the committees agreed on a set of criteria and a template for the call for proposals. The call was made public in December 2023, with submissions due by January 30, 2024. The ESA and WCA steering committees reviewed the applications and communicated the results to the successful applicants. Out of nearly 100 applications submitted, 19 successful candidates are from WCA and 13 from ESA.

Recognizing the importance of a strong and consistent identity, the steering committees established guidelines for the branding and marking process. Part of this process includes creating a logo, which will be shared with the steering committees and the network for a final selection and approval. This step is crucial in developing a visual identity that reflects the network’s values and objectives.

Reinventing collaborative efforts for the future with a unique model

The network and the steering committees operate on an inclusive model in which CGIAR, NARES, and regional stakeholders collaborate to allocate resources for regional projects. This approach not only addresses each region’s unique needs but also ensures tailored development of infrastructure, human capacity, and coordination, increasing the impact on dryland crop cultivation.

“This is a one-of-a-kind collaborative model that was meticulously developed within the region by both CGIAR and NARES, who jointly decided on strategic priorities for regional projects and allocated a budget to support their region,” said Harish Gandhi, associate program director. “The ‘fit principle’ is critical for infrastructure and human capacity development, as well as improving regional coordination.”

This collaboration is about more than just pooling resources; it’s also about leveraging unique strengths, knowledge, and perspectives to create synergies that will help address complex regional challenges effectively. The network can respond to the specific needs of each region and places the onus of responsibility on the steering committees, allowing them to make critical regional decisions. By ensuring that projects are designed with a thorough understanding of regional needs, ADCIN aims to achieve more long-term and significant results.

Unanswered questions and unquestioned answers

Written by Julian Bañuelos-Uribe on . Posted in Publications.

Over the past few decades, Conservation Agriculture (CA) has moved from theory to practice for many farmers in southern Africa. CA is a system that involves minimum soil disturbance, crop residue retention, and crop diversification among other complimentary agricultural practices. One reason for its increasing popularity is its potential to mitigate threats from climate change while increasing yields.

However, there are limits to the adaptation of CA, especially for smallholder farmers. Challenges are both agronomic (e.g. lack of sufficient crop residues as mulch, weed control, pest and disease carryover through crop residues), socio-economic, and political (both locally and regionally).

A recent paper, Unanswered questions and unquestioned answers: the challenges of crop residue retention and weed control in Conservation Agriculture systems of southern Africa, published in the journal Renewable Agriculture and Food Systems in February 2024, led by CIMMYT and CGIAR scientists examines two specific challenges to more widespread CA adaptation: how to deal with trade-offs in using crop residue and finding alternatives to herbicides for weed control.

For crop residue, the two most prevalent actions are using leftover crop residue for soil cover or feeding it to livestock. Currently, many farmers allow livestock to graze on crop residue in the field, leading to overgrazing and insufficient ground cover. This tradeoff is further challenged by other multiple household uses of residues such as fuel and building material. The most common way to control weeds is the application of herbicides. However, inefficient and injudicious herbicide use poses a threat to human health and the environment, so the research team set out to identify potential alternatives to chemical weed control as the sole practices in CA systems.

“The answer to the question ‘how should farmers control weeds?’ has always been herbicides,” said lead author Christian Thierfelder, CIMMYT principal cropping systems agronomist. “But herbicides have many negative side effects, so we wanted to question that answer and examine other potential weed control methods.”

What to do with crop residue

Previous research from the region found that ungrazed areas had long-term positive effects on soil fertility and crop yields. However, it is common practice for many farmers in Malawi, Zambia, and Zimbabwe to allow open grazing after the harvest in their communities. Livestock are free to graze wherever they wander, which results in overgrazing.

“Open grazing systems help keep costs down but are very inefficient in terms of use of resources. It leads to bare fields with poor soil,” said Thierfelder.

Maize on residues. (Photo: CIMMYT)

While it is easy to suggest that regulations should be enacted to limit open grazing, it is difficult to implement and enforce such rules in practice. The authors found that enforcement is lacking in smaller villages because community members are often related, which makes punishment difficult, and there is an inherent conflict of interest among those responsible for enforcement.

Controlling weeds

Weeding challenges in CA systems have been addressed worldwide by simply using herbicides. However, chemical weeding is often not affordable and, sometimes, inaccessible to the smallholder farmers and environmentally unfriendly.

Using herbicides, though effective when properly applied, also requires a degree of specialized knowledge, and without basic training, this may be an unviable option as they may pose a risk to the health of the farmers. Thus, alternatives need to be identified to overcome this challenge.

Some alternatives include mechanical methods, involving the use of handheld tools or more sophisticated tools pulled by animals or engines. While this can be effective, there is the possibility of high initial investments, and intercropping (a tenet of CA) forces farmers to maneuver carefully between rows to avoid unintended damage of the intercrop.

Increasing crop competition is another potential weed control system. By increasing plant density, reducing crop row spacing, and integrating other crops through intercropping, the crop competes more successfully with the weeds for resources such as light, moisture, and nutrients. When the crop seed rate is increased, the density of the crops increases, providing more cover to intercept light, and reducing the amount of light reaching the weeds thereby controlling their proliferation.

A holistic approach

“What we learned is that many of the crop residue and weed challenges are part of broader complications that cannot be resolved without understanding the interactions among the current scientific recommendations, private incentives, social norms, institutions, and government policy,” said Thierfelder.

Continuing research into CA should aim to examine the social and institutional innovations needed to mainstream CA as well as strengthen and expand the research on weed control alternatives and focus on the science of communal grazing land management to enhance their productivity.

Women farmers turn the tide on soybean production

Written by Julian Bañuelos-Uribe on . Posted in Blogs.

Juliana Moises tends her soybean plot. (Photo: CIMMYT)

From the rich plateau landscapes of Angonia district in the Tete province of Mozambique emerges a tale of determination and hard work. Juliana Nicolau Moises, a mother of four, has been a devoted soybean farmer for more than a decade, tending to a crop whose pods carry the potential for value-added products, including milk and porridge for her children. But one wonders, what motivates smallholder farmers like Juliana to invest their efforts in soybean production.

“I have never looked back on producing soybeans,” reflects Moises. “This legume crop has allowed me to feed my family and meet my household needs, let alone the cash income from sales of the surplus crop. It has taken a lot of hard work and resilience to navigate through the complexities of soybean production.”

Entering her second season of implementing the Chinyanja Soy Use Case trials with CGIAR’s Initiative on Excellence in Agronomy, delivered in partnership with CIMMYT and the International Institute of Tropical Agriculture (IITA), Moises eagerly anticipates a bumper harvest in the early planted fields. She has been avidly implementing trials on planting dates to establish the implications of early, mid, and late planting on soybean yield. Let alone the required attention to detail, she exudes a deep understanding of the significance of the trials by carrying out key agronomic practices to ensure a good harvest. This will not only nourish the health and wellbeing of her family but also symbolizes the fruits of her dedication.

Moises’s commitment extends beyond the trial she hosts as she implements her learning from the project to other fields, using innovative approaches like the double-row planting method. In soybean farming, this involves planting two rows of seeds on a wider ridge established on the traditional spacing that farmers use on maize. Traditionally, farmers in Angonia have been planting single rows of soybean on ridges spaced at 90 cm used for maize, thereby resulting in low soy plant populations and ultimately low yields. This different technique optimizes the plant population and land use efficiency, improving yields, and facilitating easier weeding.

Moises’s soybean plot in Angonia, Mozambique. (Photo: CIMMYT)

Despite the promise of enhanced production, challenges persist. Southern Africa continues to face a growing demand for soybeans, with annual productivity of 861,000 metric tons (mT) falling short of the 2-million-ton demand. In Mozambique, vibrant soybean farms blanket the landscape, yet smallholder farmers like Moises grapple with underdeveloped markets and climate-related adversities, such as droughts and floods currently worsened by the El Niño phenomenon.

“As a devoted soybean farmer, I have met my own fair share of challenges. One of our biggest challenges is the labor requirement across the production season,” shared Moises as she navigates through her fields. “We need machinery for planting, weeding, and harvesting in order to reduce the labor and drudgery associated with soybean production. In addition, markets remain a challenge.” Her unwavering commitment inspires neighboring farmers, creating a ripple effect of hope and determination in the community.

Sharing the same sentiments is Veronica Ernesto Gama, who teams up with her husband every year to tend to her soybean field. Having started in 2007, their yields have sustained the food basket of her family while meeting nutritional needs. “In the past, I used to just scatter around soybean seeds in one place, but after these trials, I have learned the significance of applying the agronomically recommended spacing and the need for quality improved seeds to ensure a bumper harvest,” said Gama.

The power of collaboration

Addressing these challenges head-on is CGIAR’s Excellence in Agronomy Chinyanja Triangle Soy Use Case, a collaborative effort aimed at strengthening the soybean industry primarily by empowering farmers with improved agronomic practices and decision support. Solidaridad, an international non-government organization (NGO) pursuing digital platforms for scaling agronomy, serves as the demand partner of the Excellence in Agronomy Chinyanja Triangle Soy Use Case, while CGIAR provides technical support. Solidaridad’s role is vital in catalyzing demand for the product or service in question. Research outputs drawn from the trials will be used to develop a mobile phone application on the Kvuno, a social enterprise borne out of Solidaridad. The platform will support farmers with onsite advisories on planting dates, site-specific fertilizer recommendations, variety selection, and crop configurations.

To date, the initiative has drawn the willingness of 70 farmers in the Angonia district of Tete province, who are implementing different suites of trials, including nutrient omission, planting date, plant configuration, and fertilizer usage. Excellence in Agronomy has come at an opportune time for smallholders’ journeys in soybean production, emphasizing the importance of optimized spacing and improved agronomic practices.

As the story unfolds in Mozambique, women like Moises and Gama are the unsung heroes driving soybean production. Their dedication, coupled with initiatives like Excellence in Agronomy, paint a picture of progress and potential. Their commitment inspires many surrounding farmers who draw inspiration on the trials in their fields. As the sun continues to rise over the dusty soils of Angonia, it showcases not just Moises’s fields, but the bright future of soybean production in the hands of resilient women farmers.

Advancing appropriate-scale mechanization in the Global South

Written by Julian Bañuelos-Uribe on . Posted in News.

Smallholder farmers in Chimanimani, Zimbabwe use a multi-crop thresher for the faster processing of wheat. (Photo: CIMMYT)

To foster collaboration and knowledge sharing, CIMMYT hosted a 2-day workshop in September 2023 in Lusaka, Zambia, on appropriate mechanization for smallholder farmers in the Global South. This event was part of the Southern Africa Accelerated Innovation Delivery Initiative (AID-I) MasAgro Africa Rapid Delivery Hub funded by the United States Agency for International Development (USAID).

Recognizing that equitable access to finance and credit are key enablers for mechanization, this platform strived to understand smallholder farmer needs and the identification of key financing models to facilitate widespread adoption.

With over 40 participants ranging from government representatives, development partners, and stakeholders from organizations such as USAID, the Food and Agriculture Organization (FAO), the International Institute of Tropical Agriculture (IITA), the International Fertilizer Development Center (IFDC), and Hello Tractor, this regional event provided an opportunity for robust discussions and to align the course of action.

Unpacking mechanization in the Global South

Appropriate-scale mechanization is essential and a top policy priority to transform African agriculture. Evidence shows that nearly 70% of operations in sub-Saharan Africa are done manually. However, human labor is limited and is increasingly scarce and costly given the unfolding transformation of rural spaces in most places, necessitating agricultural mechanization. The cornerstone of this shift lies in integrating small, affordable machines tailored to the operations and needs of smallholder farmers, which must be accessible through market-based financial and business models.

A top policy priority in Zambia

The Permanent Secretary, Technical Services of the Zambian Ministry of Agriculture, Green Mbozi, officially opened the meeting. He lauded the meeting as timely and commendable as agriculture mechanization is a top policy priority for Zambia.

Green Mbozi, permanent secretary, opens the meeting. (Photo: CIMMYT)

“The government has embarked on a process to formulate a national mechanization strategy, which will serve as a blueprint on how to sustainably promote agricultural machinery and equipment across the value chains. The insights from this workshop would be helpful in feeding into the formulation of the strategy and help in identifying entry points to support sustainable agriculture mechanization,” said Mbozi.

Accelerating change through inclusive dialogues

The dialogue played a crucial role in bolstering support for sustainable agriculture mechanization while tackling challenges hindering active adoption. Mbozi highlighted the imminent launch of an agricultural mechanization strategy developed with technical support from FAO and CIMMYT through the Sustainable Intensification of Smallholder Farming Systems in Zambia (SIFAZ) project.

The mechanization strategy champions sustainable and efficient mechanization practices, strengthens the private sector’s role in mechanization, and provides training and financial support to small-scale farmers, women, and youth. Proposed initiatives include regional centers of excellence, a national mechanization association, and the use of information and communication technologies to promote mechanization.

Sieg Snapp, director of Sustainable Agrifood Systems, delivers a presentation on mechanization financing. (Photo: CIMMYT)

“It is important to develop the right bundle of mechanization services that meet the needs of farmers and are profitable for mechanization service providers,” said Director of Sustainable Agrifood Systems (SAS) at CIMMYT, Sieg Snapp. “Finding the right financing is needed to support multiple bundles of mechanization services, which provide profits throughout the year.”

Additionally, the SIFAZ project promotes local manufacturing, supporting quality assurance, conducting demand studies, and establishing an agricultural mechanization data bank to catalyze transformative progress.

Key insights from USAID and FAO

David Howlett, the Feed the Future coordinator at the USAID Mission in Zambia, shared with participants that, “USAID is working to address the effects of climate change through mechanization and other adaptation strategies.” Aligning with the central focus of the meeting, he further reiterated that mechanization will be key to building resilience by improving agricultural systems.

David Howlett, Feed the Future coordinator for the Zambia USAID mission, expresses commitment to investing in climate adaptation and mitigation strategies. (Photo: CIMMYT)

Offering insights drawn from country-level experiences on scale mechanization for smallholder farmers, Joseph Mpagalile from FAO said, “FAO has been helping countries develop national agricultural mechanization strategies, with 12 countries in Africa already revising or preparing new strategies for sustainable agricultural mechanization.”

Private sector engagement: lessons from Hello Tractor

Operating across 13 African countries, Hello Tractor has been leveraging digitalization to scale mechanization in Africa since its inception. Hello Tractor facilitates services to over 500,000 smallholder farmers through 3,000+ tractors and combine harvesters, while providing remote tracking of assets and preventing fraud and machine misuse for machinery owners. At the heart of the company are booking agents who connect farmers to solutions to increase productivity and income.

Call to action

As the discussions ended, key outcomes distilled highlighted a pressing need to sensitize farmers on the merits of mechanization and facilitating access through tailored financial resources. Special attention was also directed towards empowering women and youth through implementation of de-risking mechanisms and strategic marketing linkages.

Recognizing the critical absence of data, a compelling call for a funding pool to collect essential information in the ESA region became clear. In addition, it was emphasized that appropriate-scale mechanization should be driven by sustainable business and financing models. The journey towards mechanization is a collective effort, blending policy initiatives, private sector engagement, and research-driven strategies.

Understanding and Enhancing Adoption of Conservation Agriculture in Smallholder Farming Systems of southern Africa (ACASA)

Written by Julian Bañuelos-Uribe on . Posted in Uncategorized.

Conservation agriculture (CA) has increasingly been promoted in southern Africa to address low agricultural productivity, food insecurity, and land degradation. Despite significant experimental evidence on the agronomic and economic benefits and the large scaling-up investments by donors and national governments, the adoption rates of CA practices among smallholder farmers are low and slow.

With funding from the Norwegian Agency for Development Cooperation (NORAD) and implemented by the International Institute of Tropical Agriculture (IITA) and CIMMYT, ACASA strives to understand “why previous efforts and investments to scale CA technologies and practices in southern Africa have not led to widespread adoption.” It is a three-year project implemented in Malawi, Zambia, and Zimbabwe, where CA is part of national policy.

Since 2021, the project has undertaken extensive surveys aimed to understand incentives, drivers, and barriers of CA adoption across the three countries (Malawi, Zambia, and Zimbabwe) typifying much of the southern Africa smallholder systems. The aim of the project is to consolidate the lessons learned so far and provide a pathway to scaling and foster the next generation of social, crop, agronomic and climate research; to mainstream CA enabled by fundamental paradigm shifts in farming practices, markets, and social institutions for sustainable intensification of smallholder farming systems of southern Africa.

Project objectives include –

  • Understanding the contexts of smallholder farmer in southern Africa to identify the drivers and barriers preventing adoption of CA practices, including biophysical, socio-economic, institutional and policy constraints
  • Identifying labor-efficient mechanization options for smallholder farmers
  • Identifying opportunities and tools for better targeting of appropriate CA practices and options across heterogenous agroecologies and farm types, and
  • Identifying approaches and strategies for inclusive scaling of CA practices (policy, institutional and value chain entry points and pathways to promote and scale CA)

 

How CGIAR maize breeding is improving the world’s major staple crop for tropical regions

Written by Julian Bañuelos-Uribe on . Posted in Blogs.

Maize production is surging due to its diversified end uses. While it is already the first staple cereal globally, it is expected to emerge as the world’s predominant crop for cultivation and trade in the coming decade. Globally, it serves primarily as animal feed, but it is also a vital food crop, particularly in sub-Saharan Africa, Latin America, and in some areas in Asia. 

Climate change is, however, altering the conditions for maize cultivation, especially in the rainfed, stress-prone tropics. Abiotic stresses like heat, drought, and floods, as well as biotic threats such as diseases and insect pests are becoming more frequent. These have a disproportionate impact on the resource-constrained smallholders who depend on maize for their food, income, and livelihoods. 

In a race against time, crop breeders are working to enhance maize’s resilience to the changing climates. Among others, CIMMYT and the International Institute of Tropical Agriculture (IITA), working within CGIAR’s Accelerated Breeding Initiative, are utilizing breeding innovations to develop climate-resilient and nutritionally enriched maize varieties needed by the most vulnerable farmers and consumers.  

Better processes

Improving maize yields in the rainfed, stress-prone tropics is challenging. Nevertheless, CGIAR’s efforts have significant impacts, as breeding programs embraced continuous improvement and enhanced efficiency over the years.  

To increase genetic gains, CIMMYT maize breeding program implemented a systematic continuous improvement plan. Sixty percent of CIMMYT’s maize lines in Eastern and Southern Africa (ESA) are now developed through technologies that speed up breeding cycle and improve selection intensity and accuracy; these include doubled haploid technology, high-throughput phenotyping, molecular marker-assisted forward breeding, and genomic selection. The breeding cycle time has been reduced from five or six years to only four years in most of the maize product profiles. Product advancement decisions now incorporate selection indexes, and specialized software aid in the selection of parental lines for new breeding starts. 

CIMMYT and IITA maize teams are working together to investigate several key traits in maize for discovery, validation, and deployment of molecular markers. CGIAR maize team developed a framework for implementing a stage-gate advancement process for marker-trait pipeline, which enables informed decision-making and data-driven advancements at multiple stages, from marker-trait discovery proposal to marker discovery, validation, and deployment. Consolidating research efforts and implementing this process is expected to increase efficiency and collaboration in maize breeding programs.

An example of maize biotic stress exacerbated by climate change: fall armyworm (FAW) larvae, highly destructive pests, emerge out from an egg mass placed on a maize leaf. (Photo: A. Cortés/CIMMYT)

At the end of the breeding process, breeders must ensure the quality assurance and quality control (QA/QC) of the parental lines of the new varieties. Seed quality, which includes genetic purity, genetic identity, and verification of parentage – is critical in maize breeding and commercial seed production.  

CIMMYT has worked to enhance the capacity of NARES and seed company partners in Eastern and South Africa (ESA), Asia, and Latin America, in utilizing molecular markers for QA/QC in breeding and commercial seed production. This has resulted in more reliable and accurate outcomes. In addition, webinars and user-friendly software have boosted results for NARES maize breeders, regulatory agencies, and seed companies. These combined efforts mean a dependable, cost-effective, and efficient QA/QC system for the maize seed value chain in the Global South. 

Better tools 

With traditional means, obtaining a genetically homozygous or true-to-type maize line requires six to eight generations of inbreeding, and thus, more than ten years for developing a new hybrid. The technique of doubled haploid (DH), which enables derivation of 100% genetically homozygous lines in just two generations, is now integral to modern maize breeding. CIMMYT has pioneered the development of tropical maize DH technology, by developing and disseminating tropicalized haploid inducers, establishing centralized DH facilities in Mexico, Kenya and India, and providing DH development service to partners.  

Regional on-farm trials (ROFTs) is a crucial step in maximizing the impact of breeding investments. ROFTs help scientists understand performance of the pipeline hybrids under diverse farmers’ management conditions, besides environment, soil variability, etc. 

In ESA, ROFT networks for maize are expanded significantly over the last few years, from 20-30 sites per product profile to up to 300 sites, encompassing a wide range of smallholder farming practices. The experimental design was simplified to use less germplasm entries to be tested per farm, making it easier for the farmers to participate in the network, while improving data quality. Collaboration with NARES, seed companies, NGOs, and development partners was significantly stepped up to capture the social diversity within the target market segments. Gender inclusion was prioritized.

Training workshop organized by CIMMYT at the Maize Doubled Haploid Facility in Kunigal, India. (Photo: CIMMYT)

Strengthening the capacity of NARES and SMEs to systematically access and utilize improved maize germplasm is critical for increasing genetic gains in the stress-prone tropics. But partner institutions are at different stages of evolution, which means capacity strengthening must be tailored to institutional strengths and constraints.  

Accelerated Breeding has been strengthening regional CGIAR-NARES-SME collaborative maize breeding networks via activities such as exchanging elite tropical germplasm (inbred lines, trait donors, and breeding populations) through field days, and widely disseminating CIMMYT maize lines (CMLs) requested by institutions globally.  

Partners participate in CGIAR maize stage-advancement meetings – they are given access to multi-location trial data and participate in the selection process of promising hybrids to be advanced from the different breeding stages. CGIAR maize teams also assessed the capacity of different NARES institutions, and formulated continuous improvement plans in consultation with respective NARES teams for further support.  

Better varieties

Systematic integration of new breeding techniques and innovations in CGIAR maize breeding pipelines are leading to better varieties, at a much faster pace, and at lower cost. Given the impacts of climate change, this is indeed the need of the hour.  

Maize breeders need to respond rapidly to emerging and highly destructive insect-pests and diseases. For instance, the invasion of fall armyworm (FAW) in Africa (since 2016) and Asia (since 2018) has ravaged maize crops across more than 60 countries. CGIAR maize team in Africa responded to this challenge and made progress in identifying diverse sources of native genetic resistance to FAW, resulting in elite hybrids and open-pollinated varieties (OPVs) adapted to African conditions. 

Since 2017, CIMMY has strengthened the maize insectary capacity of KALRO-Katumani by optimizing the FAW mass rearing protocol and screening of maize germplasm under FAW artificial infestation at Kiboko Station, Kenya. The station now has sixteen 1,000m net houses. The intensive work since 2018 led to identification of FAW-tolerant inbred lines by CIMMYT and their distribution to over 90 public and private institutions in 34 countries. 

NARES partners across 13 countries in Africa have undertaken national performance trials of three FAW-tolerant hybrids developed by CIMMYT. Kenya, Zambia, Malawi, South Sudan and Ghana released the three hybrids in 2022-23, while several more countries are expected to release these hybrids in the coming months.

Drought and heat tolerant maize ears are harvested through a CIMMYT project. (Photo: J.Siamachira/CIMMYT)

Climate change is also exacerbating maize diseases. Affecting at least 17 countries in the Americas, the Tar Spot Complex (TSC) disease affects maize in the cool and humid regions. It causes premature leaf death, weakens plants, and reduces yields by up to 50%. CIMMYT maize team in Mexico has mapped genomic regions conferring TSC resistance, and is using these markers in breeding programs.  

The Global South is also particularly vulnerable to drought and high temperature stresses. In the past five years, 20 drought- and heat-tolerant maize hybrids have been released in Asia, including Bangladesh, Bhutan, India, Nepal, and Pakistan. Socio-economic studies in India and Nepal showed that farmers who adopted these hybrids realized higher grain yields, and increased income compared to the non-adopters. 

In 2022, certified seed production of CGIAR multiple stress-tolerant maize varieties reached 181,119 metric tons in sub-Saharan Africa (from 72,337 tons in 2016). This is estimated to cover ~7.4 million hectares, benefiting over 46 million people in 13 countries. 

With maize facing unprecedented threats from climate change-induced stresses in the rainfed stress-prone tropics, CGIAR maize breeding programs working closely with NARES and private sector have demonstrated remarkable success in breeding as well as deploying climate resilient maize.  These efforts rely on better processes and modern breeding tools, leading to drastically reduced breeding cycle time, cost saving, and improved efficiency.  

The resulting improved varieties–resilient to major environmental stresses, diseases and insect-pests–are increasingly adopted by smallholders across sub-Saharan Africa, South Asia, and Latin America, showing that tomorrow is already here. The work continues to ensure that maize remains a constant source of food security and prosperity for generations to come in the tropical regions.

In sub-Saharan Africa, mineral fertilization and agroecology are not incompatible

Written by Julian Bañuelos-Uribe on . Posted in Press releases.

Are agroecological approaches, based for example on the use of legumes and manure, enough by themselves to ensure a long-term increase in annual crop yields in sub-Saharan Africa (SSA), without using more mineral fertilizer?

The answer is no, according to a team of agronomists who have published an in-depth analysis of 150 scientific articles on annual crops (maize, sorghum, millet, rice, cassava, etc.) and tropical legumes, both annual grain legumes (cowpea, groundnut) and legume trees (acacia, sesbania) in tropical environments.

These publications collate 50 years of knowledge on nutrient balances in sub-Saharan Africa, biological nitrogen fixation by tropical legumes, manure use in smallholder farming systems and the environmental impact of mineral fertilizer.

“When we look at comparable climate conditions and physical soil constraints, yields of maize – the main source of calories for people – in sub-Saharan Africa are three to four times lower than elsewhere in the world. This is largely due to the fact that mineral fertilizer use (nitrogen, potassium) is on average four times lower there”, says Gatien Falconnier, a researcher at CIRAD based in Zimbabwe and lead author of the article. “On average, 13 kg of nitrogen are used per hectare and per year in sub-Saharan Africa, for all crops, bearing in mind that the poorest farmers have no access to nitrogen fertilizers and therefore do not use them. It is mainly agri-business and vegetable farmers that have access to fertilizers”, adds François Affholder, an agronomist at CIRAD based in Mozambique and co-author of the article.

Maize and cowpea intercropping in the Maravire field. (Photo: CIMMYT)

“Our objective is not to produce like Europe or North America, but to produce more and more regularly according to the seasons and the years, and thus to increase the economic sustainability of our farming systems. To do so, we must ensure a minimum level of nutrients for crops, which require essential mineral elements for efficient photosynthesis, and therefore growth. Soils are typically lacking in mineral elements in sub-Saharan Africa, and the largely insufficient organic inputs lead to nutrient deficiencies in crops. This is the main limiting factor for crop yields, excluding drought situations”, says Pauline Chivenge of the African Plant Nutrition Institute (APNI). “The work by Christian Pieri showed as early as 1989 that it is possible to restore high levels of fertility to African soils through a balanced approach to organic and mineral nutrient inputs”, says François Affholder.

The article highlights five reasons why more mineral fertilizer is needed in sub-Saharan Africa:

  1. Farming systems are characterized by very low mineral fertilizer use, widespread mixed crop-livestock systems, and significant crop diversity, including legumes. Inputs of mineral elements to crops by farmers are insufficient, resulting in a widespread decline in soil fertility due to soil nutrient mining.
  2. The nitrogen requirements of crops cannot be met solely through biological nitrogen fixation by legumes and manure recycling. Legumes can only fix atmospheric nitrogen if symbiosis with soil bacteria functions correctly, which requires absorption of different mineral elements by the plant. Ken Giller of Wageningen University highlights that the ability of legumes to capture nitrogen from the air through their symbiosis with rhizobium bacteria is a fantastic opportunity for smallholder farmers, “but the amounts on nitrogen fixed are very small unless other nutrients such as phosphorus are supplied through fertilizers”.
  3. Phosphorus and potassium are often the main limiting factors of the functioning of plants and living organisms, including symbiotic bacteria: if there is not enough phosphorus and potassium in soils, then there is no nitrogen fixation. These nutrient elements, phosphorus, potassium and micro-elements, need to be provided by fertilizers, since they cannot be provided by legumes, which draw these elements directly from the soil. In the case of manure, this is simply a transfer from grazing areas to cultivated areas, which gradually reduces fertility in grazing areas.
  4. If used appropriately, mineral fertilizers have little impact on the environment. The greenhouse gas emissions linked to nitrogen fertilizer use can be controlled through a balanced and efficient application. In addition, mineral fertilizers can be produced more efficiently in order to reduce the impact of their production on greenhouse gas emissions, keeping in mind that this impact is low, at around 1% of total anthropogenic emissions.
  5. Further reducing mineral fertilizer use in SSA would hamper productivity gains and would contribute directly to increasing food insecurity and indirectly to agricultural expansion and deforestation. Producing for a population that will double by 2050 is likely to require the use of more agricultural land. An extensive strategy thus harms biodiversity and contributes to increasing greenhouse gas emissions, contrary to an agroecological intensification strategy combined with efficient and moderate mineral fertilizer use.

“If we take account of biophysical production factors, such as climate and soil, and shortages of land and agricultural workers, it will be impossible to reach a satisfactory production level by fertilizing soils only with manure and using legumes”, says Leonard Rusinamhodzi, an agricultural researcher at the Ghana International Institute of Tropical Agriculture.

However, “agroecological principles linked directly to improving soil fertility, such as recycling of mineral and organic elements, crop efficiency and diversity, with for example agroforestry practices and cereal-legume intercropping, remain essential to improve soil health. Soil fertility is based on its organic matter content, provided by plant growth that determines the biomass that is returned to the soil in the form of roots and plant residues. Efficient mineral fertilizer use starts a virtuous circle. These nutrients are crucial for the sustainability of agricultural productivity”, says Gatien Falconnier.

The researchers therefore argue for a nuanced position that recognizes the need to increase mineral fertilizer use in sub-Saharan Africa, in a moderate manner based on efficient practices, in conjunction with the use of agroecological practices and appropriate policy support. This balanced approach is aimed at ensuring long-term food security while preserving ecosystems and preventing soil degradation.

Référence
Falconnier, G. N., Cardinael, R., Corbeels, M., Baudron, F., Chivenge, P., Couëdel, A., Ripoche, A., Affholder, F., Naudin, K., Benaillon, E., Rusinamhodzi, L., Leroux, L., Vanlauwe, B., & Giller, K. E. (2023).

The input reduction principle of agroecology is wrong when it comes to mineral fertilizer use in sub-Saharan Africa. Outlook on Agriculture, 0(0). https://doi.org/10.1177/00307270231199795

*CIRAD, CIMMYT, International Institute of Tropical Agriculture (IITA), Wageningen University and the African Plant Nutrition Institute (APNI)

Contact: presse@cirad.fr

Scientists: 

Gatien Falconnier
gatien.falconnier@cirad.fr

Pauline Chivenge
P.CHIVENGE@apni.net

Leonard Rusinamhodzi
L.Rusinamhodzi@cgiar.org

Scaling impact of dryland crops research through regional crop improvement networks

Written by Susan Otieno on . Posted in News.

A section of key speakers at the Drylands Legumes and Cereals Network Meeting in Accra, Ghana in January 2023. (Photo: Eagle Eye Projects)

The formation of regional crop improvement networks took center stage at a meeting held in January 2023 in Accra, Ghana. The meeting convened more than 200 scientists and stakeholders in dryland crops value chains from 28 countries from Africa and across the globe to co-design a network approach.

The meeting followed a series of consultative visits and discussions between three CGIAR research centers — the International Maize and Wheat Improvement Center (CIMMYT), Alliance of Bioversity International and CIAT, and the International Institute of Tropical Agriculture (IITA) — African National Agricultural Research Institutes (NARIs), and other common-visioned partners during 2021 and 2022. These earlier discussions gathered insights, brainstormed, and co-designed approaches to empower national programs to deliver impact through their crop improvement programs.

“The idea is to add value to the existing capacities in National Agricultural Research and Extension Services, through networks where the partners agree on the goals and resources needed to achieve desired outcomes. So, it’s really a collaborative model,” said Harish Gandhi, breeding lead for dryland legumes and cereals at CIMMYT. He added that the teams have been learning from and aiming to add value to existing models such as the Pan-Africa Bean Research Alliance (PABRA), USAID Innovation Labs, and Innovation and plant breeding in West Africa (IAVAO).

Paradigm shift for African National Agricultural Research Institutes

Making the opening remarks, Ghana Council for Scientific and Industrial Research (CSIR) Director General, Paul Bosu said that at the very least, African countries should aim to feed themselves and transition from net importers to net exporters of food. “Dryland legumes and cereals, especially millet and sorghum, are very well adapted to the continent and offer great opportunity towards achieving food security”, said Bosu. He applauded the Bill & Melinda Gates Foundation and other partners for investing in research on these crops.

Representing West and Central African Council for Agricultural Research and Development (CORAF), Ousmane Ndoye noted that research in dryland legumes and cereals is a valid and needed action amidst the COVID-19 pandemic and civil unrest in different parts of the world. He added that the first and crucial step to increasing food production especially in sub-Saharan Africa is the availability of sufficient quantities of seed.

Director General of Uganda’s National Agriculture Research Organization (NARO), Ambrose Agona observed that a paradigm shift should occur for desired transformation in agriculture. He noted that African governments ought to commit adequate budgets to agriculture and that seed funding should serve to complement and amplify existing national budgets for sustainability.

He commended efforts to consult NARIs in Africa and noted that the quality of ideas exchanged at the meeting strengthen the work. “The NARIs feel happier when they are consulted from the very beginning and contribute to joint planning unlike in some cases where the NARIs in Africa are only called upon to make budgets and are excluded from co-designing projects”, said Agona.

Participants following the proceedings at the Drylands Legumes and Cereals Network Meeting in Accra, Ghana in January 2023. (Photo: Eagle Eye Projects)

Challenge to deliver effectively

During his remarks at the meeting, CIMMYT Director General Bram Govaerts noted that the focus legume and cereal crops are key to transforming and driving diversification of food systems in Africa. “It is therefore an honor and a privilege to work together with partners to improve cereal and legume systems. We will put forward our experience in breeding and commit to innovative systems approaches towards achieving impact and leverage what we are already good at, to become even better,” said Govaerts.

Referencing his visit with the United States Special Envoy for Global Food Security Cary Fowler to Southern Africa in January 2023, Govaerts narrated witnessing firsthand a food, energy and fertilizer crisis impacting Zambian and Malawian farmers. He challenged the meeting participants to envision the future impact they would like to see their breeding programs have as they design and strategize at the meeting. He pointed out that farmers are more interested in the qualities and characteristics of varieties released than the institutions responsible for the release.

CIMMYT Global Genetic Resources Director and Deputy Director General, Breeding and Genetics, Kevin Pixley also underscored the need to generate more impact through adoption of improved varieties in Africa. Pixley noted that on average, fewer than 30 percent of farmers are using improved varieties of sorghum, millet, and groundnut across the countries with ongoing work.

The meeting heard One CGIAR’s commitment to deliver resilient, nutritious and market preferred varieties as part of its Genetic Innovation Action Area, alongside improving systems and processes for sustainability from CGIAR Senior Director Plant Breeding and Pre-Breeding, John Derera. Speaking in the capacity of IITA’s Breeding Lead, Derera noted the progress made in IITA cowpea breeding program, including its modernization, owing to strong partnerships, cross learning and germplasm exchange between institutions.

PABRA Director & Leader of the Bean Programme at the Alliance of Bioversity International and CIAT, Jean-Claude Rubyogo, pointed out that despite remarkable achievements, such as those witnessed in the bean research, more effort is needed to tackle the challenges of climate change and also increase understanding of consumers traits.

Commenting on innovative pathways to improve adoption of improved varieties, the Director General of the Institute of Agricultural Research (IAR) in Zaria, Nigeria, Mohammad Ishiyaku observed the tendency for some seed companies to continue selling specific seed varieties for years, even when the productivity of the variety is low. He noted the seed companies always claimed consumer preferences concluding then that amidst investor demands, breeders ought to keenly investigate the expectations of consumers and famers to arrive at the best parameters for breeding choices.

A group photo of over 200 scientists and stakeholders in dryland crops value chains that participated at the Drylands Legumes and Cereals Network Meeting in Accra, Ghana in January 2023. (Photo: Eagle Eye Projects)

International Year of Millets, 2023

The gathering commemorated the International Year of Millets by listening to a keynote address on “Millets for food and nutritional security and mitigating climate change – #IYM2023” by Lake Chad Research Institute, Nigeria, Research Director, Zakari Turaki. The keynote was followed by statements on the importance of millets for various countries and wider Africa from: Sanogo Moussa Daouda, representing Director General of Mali’s Institut d’Économie Rurale (IER); Ibrahima Sarr, Director of Senegal’s Institut SĂ©nĂ©galais de Recherches Agricoles’s Centre National de Recherches Agronomiques; Hamidou Traore, Director of Burkina Faso’s Institut de L’Environnement et de Recherches Agricoles; and Ambrose Agona, Director General of NARO, Uganda.

High-level statements on approaches to gender integration in agricultural research and development were delivered by Scovia Adikini, NARO millet breeder, Geoffrey Mkamillo, Director General of Tanzania’s Agricultural Research Institute (TARI), Francis Kusi of Ghana’s Savanna Agricultural Research Institute (SARI), and Aliou Faye, Director of Senegal’s Regional Center of Excellence on Dry Cereals and Associated Crops (CERAAS).

AVISA Achievements

Finally, this meeting marked the transition from the recently ended Accelerated Varietal Improvement and Seed Systems in Africa (AVISA) project to align with One CGIAR initiatives under the Genetic Innovation Action Area, with specific focus on dryland crops.

Solomon Gyan Ansah, the Director of Crop Services at the Ministry of Food and Agriculture, Ghana, acknowledged the success of AVISA Project and commended the forum’s efforts to build on the gains made by the project in developing the new approach.

“By the end of 2022, AVISA project partners had reached 4.8 million farmers with 30,600 metric tons of seed of improved legume and cereal varieties, covering almost one million hectares of land”, revealed Chris Ojiewo, Strategic Partnerships and Seeds Systems Lead. Other achievements supported by the AVISA Project include upgrading of NARES facilities and building capacities of researchers through short- and long-term trainings.

The meeting was hosted by Ghana Council for Scientific and Industrial Research (CSIR) and Ghana’s Savannah Agricultural Research Institute (SARI), and was organized by CIMMYT, in partnership with IITA and the Alliance of Bioversity and CIAT (ABC).

Building towards a climate-smart agriculture future through harnessing crop modeling

Written by Sarah McLaughlin on . Posted in News.

Participants of the crop modeling simulation workshop in Harare, Zimbabwe. (Photo: Tawanda Hove/CIMMYT)

Anticipating appropriate and timely responses to climate variability and change from an agricultural perspective requires forecasting and predictive capabilities. In Africa, climate-related risks and hazards continue to threaten food and nutrition security.

Crop simulation models are tools developed to assist farmers, agronomists and agro-meteorologists with insights on impacts to possible management decisions. Such tools are enablers for taking an appropriate course of action where complexity exists relating to both crop and livestock production. For example, a new variety can be introduced to Zimbabwe, but its performance will differ depending on the agroecological zones of the country and the respective treatments a farmer may apply. Applying modeling tools to assess its performance can predict yield differences and facilitate the generation of recommendations for which region is most suited to the variety, water use efficiency, and crop combinations.

Earlier this month, the International Maize and Wheat Improvement Center (CIMMYT) hosted a crop modeling simulation workshop with delegates from various African countries in Harare, Zimbabwe.

“The CGIAR Initiatives of Excellence in Agronomy (EiA) and Sustainable Intensification of Mixed Farming Systems (SI-MFS) have recognized the need to enhance modeling capacity in Africa to allow African scientists to lead in solving challenges within agricultural systems,” said CIMMYT crop scientist and coordinator of the workshop, Vimbayi Grace Petrova Chimonyo.

The workshop was facilitated by renowned global crop modeling experts to provide critical coaching support to upcoming modelers. These experts included Sue Walker, a professor at the University of the Free State, Tafadzwa Mabhaudhi, a professor at the International Water Management Institute (IWMI), KPC Rao, a lead scientist at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Dirk Raes (KU Leuven), Diego Peqeuno (CIMMYT)  and Siyabusa Mukuhlani from the International Institute of Tropical Agriculture (IITA).

Crop models are scientific presentations of statistical knowledge about how a crop will grow in interaction with its environment. They use mathematical equations representing processes within a predefined plant system and the interactions between crops and the environment. The discipline is based on the premise that agricultural system environments are complex and not homogenous. Crop models enable decision-makers to make data-driven decisions by simulating possible outcomes to changes in a system and the configuration of production systems.

“It is quite apparent that modeling skills are scarce on the African continent. This workshop is a step toward consolidating existing capacities on the continent. If we are going to be able to close the already existing food deficit gap on the continent and meet the food requirements needed by 2050, with an estimated global population of nine billion, then we need to take modeling seriously,” said Chimonyo in her opening address at the workshop.

Due to the lack of crop modeling expertise in African states, there is a gap in capacity to build relevant crop advisory tools for farmers at a local level. This leads to poor policy formulation as decisions are based on a high degree of generalizations.

“In this modern era, we need advisories that are context specific. For example, just because a maize variety achieved a certain yield in one context doesn’t mean the same variety will achieve the same yields even if the rainfall patterns are the same. Other factors come into play, such as the soil type, temperature and other related aspects affecting the yield. Crop modeling affords advisory managers some specifications necessary to achieve high yields in different environments,” said Walker.

Vimbayi Chimonyo from CIMMYT making opening remarks at the workshop. (Photo: Tawanda Hove/CIMMYT)

Speakers at the workshop focused on three models, APSIM, AquaCrop and DSSAT, and participants had the opportunity to take part in activities and ask questions face-to-face. The workshop also covered key modeling aspects such as the minimum data requirements needed to run a model, calibration and validation of models, confidence testing of results, the science involved in simulating phenological development and growth processes, water and nitrogen cycles, and the use of multi-modeling approaches.

The workshop was particularly useful for young scientists, according to Rao, allowing more experienced modelers to share their expertise. “With such an interactive platform, experienced modelers like me can demonstrate multi-modeling approaches.”

Rao presented on two main approaches. The first involved the application of different simulation models to simulate one component of a system such as crops. The second simulated the complete system by integrating various models, such as crops, livestock, and economic models, providing an opportunity to understand the synergies and trade-offs between different components of the whole farm.

Participants at the workshop expressed their satisfaction with the training provided and left with practical knowledge that they could apply in their work both in the field and in the lab.

“When I first arrived, I knew very little about modeling, but as the workshop progressed, my confidence in applying models increased. I intend to immediately apply this knowledge for the forthcoming season such that we can start making impactful contributions to the country’s food and nutrition security status,” said Birhan Abdulkadir Indris, a research officer at CIMMYT.

“I am leaving this workshop with the confidence that I will advise farmers in my circle of influence with services tailored to their needs. I have learned that crop modeling can be used for many purposes and that different models address different issues,” said Connie Madembo, a research technician at CIMMYT. “I intend to teach other fellow PhD students at the University of Zimbabwe the same things I have learnt here. As a country, we need to be at the forefront of using these models, considering Zimbabwe’s high weather variability.”

As a way forward, the trained scientists were encouraged to apply the modeling skills they had gained to address short-term problems such as yield gaps and water use efficiency and long-term challenges such as the local impacts of climate change.

“While more capacity training is required, starting somewhere is better than never starting,” said Mabhaudi.

Five strides forward for CGIAR crop breeding resources and services

Written by Sarah McLaughlin on . Posted in News.

Sitting at the cutting edge of science, the crop breeding domain has been improving and refining tools, technologies and techniques. But adoption by public breeding programs focusing on Africa, Asia, and Latin America has often been slow. This has hindered progress on developing the new varieties needed for farmers to overcome climate impacts, build livelihoods, and feed their communities.

But One CGIAR’s new integrated approach is changing that. Building on the work of CGIAR Excellence in Breeding, the Breeding Resource Initiative can point to major progress in 2022, moving forward on an array of shared services, capacity development programs and technical support. Here are five significant milestones helping CGIAR and its national partners deliver better results:

1. Regional hubs are on their way: CGIAR’s vision is to have regional hubs coordinating and delivering services across crops. AfricaRice is set to grow into a regional service provider and coordinator for multiple crops in West Africa. After discussions, planning and site visits with BRI, AfricaRice leadership committed to working with the BRI team to start by providing regional nutritional analysis services, aimed to launch for selected partners in 2023. The plan is to then expand AfricaRice’s role as a coordinator of other competitive services like genotyping and capacity building. This is a major step toward CGIAR’s vision of not just improving breeding stations, but serving  all CGIAR/National Agricultural Research and Extension Services (NARES) partners regionally. The aim is collaboration, efficiency and results in farmers’ fields.

2. Operations teams are amping up skills and knowledge: Breeding success hinges on good operational practices leading to accurate data. To ensure the heritability of breeding trials, BRI has offered resources, trainings and on-the-ground support for operational teams. Through its Breeding Operation Network for Development (BOND), BRI/EiB, along with IITA, ran three weeklong workshops for partners across Africa (watch all 22 sessions on plotmanship, gender, seed processing, irrigation and more), regular webinars exploring private and public sector best practices, and a series focusing on continuous improvement approaches. BRI also trained dozens of operational staff across Africa on how to use and maintain new USAID-supplied equipment. And CGIAR continued its push to harmonize rice breeding processes between IRRI, AfricaRice and CIAT through a week-long rice breeding operations training at IRRI. As well, new tools such as a gender inclusion checklist are now available to support operational excellence.

3. EBS is settling in as a universal data platform: The data management platform Enterprise Breeding System has made real strides in the past year, with an updated version with new features (Milestone 5) rolling out across three Centers (CIMMYT, IITA, IRRI), with over 500 users. Other Centers, such as AfricaRice are starting to deploy the system too. On their visit to AfricaRice’s Ivory Coast station, the BRI team noted barcode deployment across the upland rice nurseries – an inspiration to spur other CGIAR Centers to accelerate their own adoption. EBS is a single, powerful, shared, multi-crop platform and its deployment will mean major time and money savings for breeders – and better breeding decisions.

4. Lab services are expanding: As breeders strive for higher-yielding, climate-resilient and nutritious crops, BRI/EiB have been improving breeding speed and accuracy through streamlined, reliable and cost-effective genotyping services. Services include Low Density SNP Genotyping Services (LDSG), Mid-density SNP Genotyping (MDSG), along with training. BRI also launched a Lab Services Process Team to connect Genetic Innovation departments and teams and ensure delivery of high quality services through standardized processes. And launching in 2023, partners will be able to access biochemical testing for nutritional traits and quality. These improved services mean CGIAR and national partners are becoming more effective and competitive as they use this data to make better decisions.

5. Regional approaches set to drive change: BRI drives change at both local and regional levels. For example, team members visited Kiboko and Njoro stations in Kenya, and ran planning sessions in Nairobi with East African breeding teams. This helped clarify challenges and priorities in the region, helping define how services could best be established. Kenya’s key outcomes included: a commitment with CIMMYT leadership to establish services in Kiboko as a pilot, an action plan to improve EBS development and adoption in the region, and endorsement by CGIAR Breeding Research Services leadership of major Crops to End Hunger grants in the region – these fill key gaps in the drive to modernization. The team plans to organize similar sessions to support CGIAR/NARES breeding networks in other regions.

These five strides forward represent but a glimpse into Breeding Resources’ progress. And these are much more than just separate achievements. They represent a shift in breeding culture across the CGIAR-NARES networks – one that will help deliver better varieties, faster. With major plans for 2023, CGIAR-NARES can look forward to the tools and services they need to deliver first-class programs.

Read the original article: Five strides forward for CGIAR crop breeding resources and services

Story and feature photo by Adam Hunt, EiB/BRI/ABI Communications Lead. We would like to thank all funders who support this research through their contributions to the CGIAR Trust Fund. And thank you to the supporters and partners of CGIAR Excellence in Breeding, particularly the funding from Bill and Melinda Gates Foundation.

Digital Press Briefing with U.S. Special Envoy for Global Food Security Dr. Cary Fowler, and USAID Global Food Crisis Coordinator Dina Esposito

Written by Sarah McLaughlin on . Posted in In the media.

Cary Fowler, Special Envoy for Global Food Security, and Dina Esposito, the United States Agency for International Development (USAID) Global Food Crisis Coordinator, discussed the US strategy for addressing the global food security crisis and their ongoing visit to Malawi and Zambia at a digital press briefing on January 19.

“We’ve recently supported a new project which will be operating in a number of countries, including Zambia and Malawi, that will be coordinated by the International Maize and Wheat Improvement Center, and by the International Institute of Tropical Agriculture,” said Fowler.

“They’ll be establishing innovation hubs where they’ll bring together the best and most appropriate technologies and information to help small-scale farmers with a whole variety of issues that they confront. This will give the farmers access, for example in Zambia, to drought-tolerant maize, which they’re really clamoring for. This is maize which, on a year-in and year-out basis, on average will yield about 30 percent more, rotated with legumes, which provide protein and also enrich the soil and reduce the need for fertilizer. But also other technologies and assistance in establishing markets for those products and lengthening out the value chain so that farmers are not just – and small businesses are not just dealing with raw commodities but are taking those commodities and making something more valuable and more useful to a broader population.”

Read the original article: Digital Press Briefing with U.S. Special Envoy for Global Food Security Dr. Cary Fowler, and USAID Global Food Crisis Coordinator Dina Esposito

The importance of germplasm in protecting nature

Written by Sarah McLaughlin on . Posted in News.

At COP15, Sarah Hearne gives an overview of the CGIAR Allele Mining Initiative projects and their potential role in conserving biodiversity and nature. (Photo: Michael Halewood/Alliance of Bioversity International and CIAT)

Prioritizing the protection of biodiversity is an essential part of mitigating and adapting to the effects of climate change and global warming. At the 15th meeting of the Conference of the Parties to the UN Convention on Biological Diversity (CBD) (COP15), held between December 7-19 in Montreal, Canada, emphasis was placed on the important role of nature in meeting the Sustainable Development Goals (SDGs), proposing the adoption of a bold global biodiversity framework that addresses the key drivers of nature loss to secure health and wellbeing for humanity and for the planet.

On December 7, scientists from the International Maize and Wheat Improvement Center (CIMMYT), together with colleagues from CGIAR research centers and the secretariat of the International Treaty on Plant Genetic Resources for Food and Agriculture, presented at a COP15 side event on how Digital sequence information (DSI) is changing the way genetic resources are used in agricultural research and development and implications for new benefit-sharing norms.

The session, organized by the CGIAR Initiative on Genebanks explored the role of DSI to conserve crop and livestock genetic diversity and explore and utilize that diversity in plant and animal breeding programs.

Attendees at the COP15 side event on DSI discover how genetic resources are used in research and development for agriculture. (Photo: Michael Halewood/Alliance of Bioversity International and CIAT)

Carolina Sansaloni, wheat germplasm bank curator and genotyping specialist, illustrated how DSI is being used in the CIMMYT wheat collection to analyze structure, redundancies, and gaps, further detailing how generation and use of DSI to conduct similar analyses within national genebanks in Latin America is being supported through collaborative efforts of CIMMYT and the Alliance of Bioversity and CIAT.

CIMMYT principal scientist Sarah Hearne focused on the application of DSI to interrogate broad swathes of crop genetic diversity for potential climate change adaptation, providing examples of work from the Allele Mining Initiative projects, Mining Useful Alleles and Fast Tracking Climate Solutions, alongside earlier work funded by the Mexican Government.

The take-home message was that genetic diversity and germplasm bank collections, when explored at “global scale” with modern tools and diverse partnerships, offer a powerful resource in the efforts to mitigate the impacts of climate change. This potential is only realized through appropriate generation and sharing of DSI generated from collections of many countries of origin.

Sansaloni and Hearne also contributed to a discussion paper, titled “Digital sequence information is changing the way genetic resources are used in agricultural research and development: implications for new benefit sharing norms”. This article, developed by scientists and germplasm law experts from across the CGIAR, provides a more detailed assessment of CGIAR use of DSI and the benefit sharing options being considered by the Contracting Parties to the Convention on Biological Diversity.

Partnership approach to maize development praised in new study

Written by Sarah McLaughlin on . Posted in Publications.

Using data from 1995-2015, an empirical study from the International Maize and Wheat Improvement Center (CIMMYT) and the International Institute of Tropical Agriculture (IITA), led by Vijesh Krishna, CIMMYT Lead Adoption – Impact Economist, has estimated the economic benefits of new varieties in 18 major maize-producing countries in sub-Saharan Africa.

Kevin Pixley, Deputy Director General for Research (Breeding and Genetics), a.i., and Director of the Genetic Resources Program, said, “This was not easy due to the challenges of gathering and analyzing complex data, but it’s a very important milestone for CIMMYT. Peer review in a highly respected journal is a gold standard that gives external critique and endorsement to the impact assessment methods used and estimates reported for CIMMYT and IITA’s work with partners in Africa.”

Around 60 percent of the 1,345 maize varieties released in this twenty-year period had a known CGIAR parentage.

Approximately 34 percent of the total maize area in 2015 was cultivated with CGIAR-related maize varieties from 1995 onwards, equivalent to 9.5 million hectares (ha); 13 percent of the maize area was under CGIAR-related varieties released before 1995.

The new maize varieties hold an economic benefit for the region, with an estimated value of US $1.1-1.6 billion in 2015 equally attributed to CGIAR, public-sector national research and extension programs, and private sector partners. With maximum annual investment in CGIAR maize breeding sitting at US $30 million, the estimated benefit-cost ratio for investment was between 12:1-17:1, depending on the underlying assumptions.

“This paper is a valuable contribution to literature on impact assessment, highlighting the real challenges and approaches to quantify impact of work that is a collaboration among many,” continued Pixley. “Both the methodologies and impact estimates will be valuable to researchers and funders of plant breeding programs.”

Read the study: Impact of CGIAR maize germplasm in Sub-Saharan Africa

Cover photo: Farmer Chana Filimoni harvesting maize in his field in Chakwawa village, Salima District, Malawi. (Photo: Peter Lowe/CIMMYT)

New WIRES initiatives to advance women’s careers in science and research

Written by Sarah McLaughlin on . Posted in News.

IITA women nutrition scientists perfecting a new recipe. (Photo: IITA)

The CGIAR Women in Research and Science (WIRES) employee-led resource group recently had a virtual engagement to discuss the progress and new happenings in the group. The meeting, themed “Connecting and Mentoring, What’s new with WIRES!” was held on October 24.

Giving the opening remarks, The Alliance of Bioversity International and CIAT Knowledge Sharing Specialist Arwen Bailey stated that the group was launched in July 2020 to empower and increase the visibility of women research and science professionals across CGIAR.

Bailey and other co-coordinators, International Maize and Wheat Improvement Center (CIMMYT) Technical Program Manager Aparna Das, IITA HarvestPlus Cassava Breeder Elizabeth Parkes, and International Center for Agricultural Research in the Dry Areas (ICARDA) Communication Consultant Nada Abdelhamid, shared their reasons for volunteering in WIRES. Participants also highlighted their expectations for the meeting.

Explaining the vision and mission of the group, Das stated that WIRES aims to provide tools and knowledge that support professional development. She added that this would create visibility for CGIAR women in science and research so their voices are heard and their contributions recognized. “We are an open community that accommodates both men and women who are willing to support the vision of WIRES,” she said.

HarvestPlus Cassava Breeder Dr Elizabeth Parkes is one of the WIRES coordinators. (Photo: IITA)

Discussing her reason for sponsoring WIRES, CGIAR Executive Managing Director Claudia Sadoff said she admires the efforts and engagement of the team in supporting women despite having other personal life activities. She added that the increase in the percentage of women scientists calls for more effort to train and empower these women. “Thanks for allowing me to be your sponsor,” she said. International Livestock Research Institute (ILRI) Director General Jimmy Smith, also a sponsor, stated that his motivation to join the cause stems from his experience raising daughters.

Highlighting how intending volunteers can support WIRES, Das spoke on mentorship as a promising strategy to advance Gender, Diversity and Inclusion (GDI) in the workplace as it offers access and advocacy for women. Explaining the criteria for engagement, she stated that a mentor must be passionate about advancing GDI, while the mentee must be a middle to senior-level career woman researcher/scientist with an appetite to learn. “Registration for the program will begin in November, and the program will kick off in December. Interested mentors and mentees who meet the criteria can register and be trained,” she said.

Other new WIRES initiatives coming up before the end of 2022 include “Random coffee,” where members can schedule to meet physically or virtually to build a vibrant relationship and network, and “Focus groups” for discussions that will ensure continuous improvement for WIRES.

Closing out the meeting, CGIAR Global Director of People and Culture, Fiona Bourdin-Farrell, summarized ways volunteers can help to advance women in science and research in CGIAR. She mentioned that it starts with joining the WIRES team, being a part of the mentoring program, engaging in the random coffee pilot, and joining focus groups. “You can contribute to the information in the newsletter. You can also register as both mentor and mentee as long as you meet the criteria,” she concluded.

Read the original article: New WIRES initiatives to advance women’s careers in science and research

Contributed by Ochuwa Favour Daramola.