Skip to main content

Theme: Climate adaptation and mitigation

Climate change threatens to reduce global crop production, and poor people in tropical environments will be hit the hardest. More than 90% of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while producing more food, and reduce emissions where possible. Innovations include new maize and wheat varieties that withstand drought, heat and pests; conservation agriculture; farming methods that save water and reduce the need for fertilizer; climate information services; and index-based insurance for farmers whose crops are damaged by bad weather. CIMMYT is an important contributor to the CGIAR Research Program on Climate Change, Agriculture and Food Security.

Heat tolerant maize: a solution for climate change-induced 360◩ water deficits

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

Seed company partners observe the performance of heat-tolerant hybrids in the dry heat of southern Karnataka, India. (Photo: CIMMYT)

Millions of smallholders in the Global South depend on maize, largely cultivated under rainfed conditions, for their own food security and livelihoods. Climate change mediated weather extremes, such as heat waves and frequent droughts, pose a major challenge to agricultural production, especially for rainfed crops like maize in the tropics.

“With both effects coming together under heat stress conditions, plants are surrounded, with no relief from the soil or the air,” said Pervez H. Zaidi, maize physiologist with CIMMYT’s Global Maize Program in Asia. “Climate change induced drought and heat stress results in a double-sided water deficit: supply-side drought due to depleted moisture in soils, and demand-side drought with decreased moisture in the surface air. “

Extreme weather events

Weather extremes have emerged as the major factor contributing to low productivity of the rainfed system in lowland tropics. South Asia is already experiencing soaring high temperatures (≄40◩C), at least 5◩C above the threshold limit for tropical maize and increased frequency of drought stress.

A woman agricultural officer discusses the performance of heat tolerant hybrids at farmers’ field in Raichur districts of Karnataka, India. (Photo: CIMMYT)

“In today’s warmer and drier climate, unless farmers have copious amounts of water (which might not be a sustainable choice for smallholders in the tropics) to not only meet the increased transpiration needs of the plants but also for increased evaporation to maintain necessary levels of humidity in the air, the climate change mediated weather extremes, such as heat and drought pose a major challenge to agricultural production, especially for rainfed crops like maize in lowland tropics,” said Zaidi.

To deal with emerging trends of unpredictable weather patterns with an increased number of warmer and drier days, new maize cultivars must combine high yield potential with tolerance to heat stress.

Maize designed to thrive in extreme weather conditions

CIMMYT’s Global Maize Program in South Asia, in partnership with public sector maize research institutes and private sector seed companies in the region, is implementing an intensive initiative for developing and deploying heat tolerant maize that combines high yield potential with resilience to heat and drought.

By integrating novel breeding and precision phenotyping tools and methods, new maize germplasm with enhanced levels of heat stress tolerance is being developed for lowland tropics. Over a decade of concerted efforts have resulted in over 50 elite heat stress tolerant, CIMMYT-derived maize hybrids licensed to public and private sector partners for varietal release, improved seed deployment, and scale-up.

Popular normal hybrids (left) & CAH153, a heat tolerant hybrid (right) under heat stress. (Photo: CIMMYT)

As of 2023, a total of 22 such high-yielding climate-adaptive maize (CAM) hybrids have been released by partners throughout South Asia. Through public-private partnerships, eight hybrids are being already deployed and scaled-up to over 100,000 hectares in Bangladesh, Bhutan, India, Nepal, and Pakistan. Also, the heat tolerant lines developed by CIMMYT in Asia were used by maize programs in sub-Saharan Africa for developing heat tolerant maize hybrids by crossing these as trait donors with their elite maize lines.

Studies on the new CAM hybrids show that while their yield is like existing normal maize hybrids under favorable conditions, the CAM hybrids outperform normal hybrids significantly under unfavorable weather conditions.

“The unique selling point of the new CAM hybrids is that they guarantee a minimum yield of at least 1.0 tons per hectare to smallholder farmers under unfavorable weather when most of the existing normal hybrids end-up with very poor yield,” said Subhas Raj Upadhyay, from the Lumbini Seed Company Ltd. in Nepal.

Given the superior performance of CAM seeds in stress conditions, Nepali farmers have expressed willingness to pay a premium price: an average of 71% more with government subsidy, or at least 19% extra without a subsidy for CAM seed. Similarly, the farmers in hot-dry areas of the Karnataka state of India are ready to pay 37% premium price for CAM seed compared to normal hybrid seed. These reports strongly validate the demand of CAM seed and therefore a targeted initiative is needed to accelerate deployment and scaling these seeds in climate-vulnerable marginal agroecologies in tropics.

New innovative crops could significantly reduce agriculture’s climate change impact and environmental footprint

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

As the global population approaches the 10 billion mark, the reliance on fertilisers to boost agricultural production has become an essential, yet environmentally challenging, practice. A Century-long dependence on these additives has allowed food production to keep pace with the growth in human population. However, the use of fertilisers across various farming systems is now causing severe ecological stress. The leaching of nitrogen into natural ecosystems, coupled with the release of greenhouse gases, is pushing the Earth’s environmental limits to a critical threshold.

To address this, an ambitious new research initiative aims to shrink the nitrogen footprint of agriculture by developing a breakthrough technology based on nature’s own solutions: a natural process called biological nitrification inhibition (BNI). The Novo Nordisk Foundation has awarded CIMMYT a grant of up to USD 21.1 million to lead an innovation research initiative called CropSustaiN that is designed to reduce the nitrogen footprint of wheat cultivation.

“Success in this initiative could lead to a major shift in agricultural practices globally, benefiting both the planet and farmers’ livelihoods. In addition to using less fertiliser, cost for the farmer will be minimal because all the components are already in the seed. This initiative could, potentially, be extended from wheat cultivation to include other staple crops like maize and rice,” says Claus Felby, Senior Vice President, Biotech, Novo Nordisk Foundation.

“BNI could be a part of how we revolutionise nitrogen management in agriculture. It represents a genetic mitigation strategy that not only complement existing methods but also has the potential to decrease the need for synthetic fertilisers substantially. The mitigation potential of better nitrogen fertiliser management could be as impactful for the Global South as the Green Revolution,” explains Bram Govaerts, Director General, CIMMYT.

Revolutionary mitigation approach

Rooted in a seed-based genetic strategy, BNI leverages a plant’s innate ability to suppress soil nitrification through the release of natural compounds. This approach potentially promises to curb the use and leaching of synthetic nitrogen fertilisers—a significant contributor to greenhouse gas emissions and water pollution—without compromising wheat yield or soil vitality. The BNI-method contrasts with synthetic nitrification inhibitors and could offer a more scalable and cost-effective solution, potentially reducing nitrogen fertiliser usage by 20%, depending on regional farming conditions.

By harnessing the power of genetics in plant seeds, CropSustaiN leverages the natural process of BNI to develop new wheat varieties that require significantly less nitrogen fertiliser. Using conventional breeding, genes from wild crop relatives like wild rye, which have inherently better nitrogen use efficiency, are incorporated. CIMMYT makes such breeding products available to its global network of partners for the international public good.

The agenda for CropSustaiN includes validating BNI efficacy across diverse climates and integrating the technology into mainstream agricultural protocols. While the venture carries success risks, the potential rewards—ranging from widespread BNI adoption to valuable insights into nitrogen management—position it as a pioneering initiative. By ensuring that the seeds developed through this program are accessible to all farmers without exclusive patent rights, the Novo Nordisk Foundation is leading an inclusive approach to agricultural innovation.

CropSustaiN builds on the joint research by the Japan International Research Center for Agricultural Sciences (JIRCAS) and CIMMYT that started in 2015. The initiative has already yielded BNI wheat lines tested over three farming seasons. These innovative crops are now poised for further development and for scaling worldwide, indicating a potential paradigm shift in agricultural practices.

The Novo Nordisk Foundation has already laid the groundwork for CropSustaiN by funding related BNI research at CIMMYT, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Aarhus University, the University of Aberdeen, and the University of Copenhagen -thus fostering an ecosystem for research innovation.

About the Novo Nordisk Foundation

Established in Denmark in 1924, the Novo Nordisk Foundation is an enterprise foundation with philanthropic objectives. The vision of the Foundation is to improve people’s health and the sustainability of society and the planet. The Foundation’s mission is to progress research and innovation in the prevention and treatment of cardiometabolic and infectious diseases as well as to advance knowledge and solutions to support a green transformation of society.

www.novonordiskfonden.dk/en

About CIMMYT

CIMMYT is a cutting edge, non-profit, international organization dedicated to solving tomorrow’s problems today. It is entrusted with fostering improved quantity, quality, and dependability of production systems and basic cereals such as maize, wheat, triticale, sorghum, millets, and associated crops through applied agricultural science, particularly in the Global South, through building strong partnerships. This combination enhances the livelihood trajectories and resilience of millions of resource-poor farmers, while working towards a more productive, inclusive, and resilient agrifood system within planetary boundaries. CIMMYT is a core CGIAR Research Center, a global research partnership for a food-secure future, dedicated to reducing poverty, enhancing food and nutrition security, and improving natural resources. For more information, visit staging.cimmyt.org.

Further information 

Jakob Stein, Communications Specialist, jse@novo.dk

Translating strategy into scientific action

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

Participants at the SAS Africa implementation roadmap retreat. (Photo: Maria Monayo/CIMMYT)

Stronger partnerships, innovation, and agile science for impact were resounding themes when CIMMYT researchers from the Sustainable Agrifood Systems (SAS) program in Africa gathered in Nairobi to develop the program’s implementation roadmap in alignment with the CIMMYT 2030 Strategy.

The three-day retreat from 25-28 March, attended by research teams from the eastern, western, southern, and Horn regions of Africa, provided a platform to share insights and chart a course towards sustainable agricultural development for the continent.

Routes to amplifying research impact

In her opening remarks, SAS Program Director, Sieglinde Snapp, emphasized the importance of grounding the CIMMYT 2030 Strategy in the African context and the urgent need for actionable plans to address pressing challenges in agrifood systems. Snapp drew attention to the significance of collaboration with public, private, and civil society stakeholders, highlighting how inclusive partnerships are essential for driving meaningful change. She urged the team to focus on turning strategic vision into tangible plans, with clear milestones to track progress.

“Humanity pulled together and got to the moon in the 60s. Conventional science and engineering got us there,” said Snapp. “However, when we have high uncertainty and high-value conflicts, we need to have all stakeholders at the table. We need to do action science and think of what the actual science looks like.”

Christian Witt, senior program officer at the Bill & Melinda Gates Foundation, delivered a keynote address focusing on the importance of advancing agronomy globally and exploring opportunities at the national level. He advocated for a balanced approach to tackling macroeconomic challenges while fostering grassroots innovation that augments impact. He also underscored the CIMMYT 2030 Strategy’s critical role across CGIAR, calling for a pivot in funder influence towards a unified, demand-driven research methodology.

Bill & Melinda Gates Foundation Senior Program Officer, Christian Witt, gives a keynote speech on advancing global agronomy. (Photo: Maria Monayo/CIMMYT)

Deep diving into the strategy

The retreat also featured a panel discussion on the CIMMYT 2030 Strategy. From the value of strategic partnerships to the need for excellence in research and delivery, the panel highlighted the key pillars of CIMMYT’s strategy and underscored the importance of aligning efforts with global priorities and challenges.

Participants discussed the role of data systems for agile agronomy, noting the need for innovative methodologies to harness the vast amount of data available. They placed key focus on empowering farmers, particularly through initiatives like the BACKFEED Farmer Agency. This inclusive feedback system enables knowledge co-creation via mobile phones, fostering networking among farmers of diverse backgrounds. Regular and spontaneous interactions facilitate data collection, addressing social exclusion in agricultural information channels faced by those with multiple vulnerabilities.

Paswel Marenya, SAS associate program director for Africa, shared thought-provoking insights on the Pathways to Impact​. He demonstrated how complementarity and bundled approaches, impact orientation, evidence-supported scaling, subsidiarity, localization, and training of farmers and communities, and inclusive seed systems, can transform food systems.

During an analysis of the strategy in the African context, central inquiry focused on identifying areas where SAS could deliver the greatest value. Discussions revealed a consensus on several key priorities: the need of developing and implementing policies from the ground up, addressing the specific needs of smallholder farmers, enhancing capacity for sustainable development, ensuring inclusivity for youth and women, expanding innovative solutions, and encouraging regional collaboration. These common themes highlight a united drive towards comprehensive and impactful agricultural advancement across Africa’s diverse landscapes.

On implementing the strategy, attendees discussed a range of plans and proposals:

  • Diversify from maize to alternative crops, such as pigeon peas.
  • Engage stakeholders in agile agronomy discussions to identify impact pathways.
  • Train the private and public sectors for climate-smart agriculture.
  • Address concerns regarding prevailing inefficiencies within the formal seed system and the lack of business models for non-hybrid seeds like groundnut or wheat.
  • Identify opportunities for financial inclusion through aggregator and off-taker models.
  • Consider the importance of mechanization policies, markets, and extension services.
  • Engage strategically in the humanitarian-development-peace nexus, as the majority of food insecurity is found in conflict areas.
  • Improve nutrition education and meet local demand for nutritious crops like pigeon pea and groundnut.
  • Consider the role of data and analytics in humanitarian-development-peace pathways, policy engagement for building value chains, and the significance of impact pathways.
  • Promote the importance of open science, data sharing, and addressing gaps between product enhancement and production.
Participants discuss how SAS can further contribute to CIMMYT’s 2030 Strategy. (Photo: Maria Monayo/CIMMYT)

Eyes on the future

In reflections at the end of the retreat, Snapp reiterated the importance of investing in soil resilience through agile agronomy and participatory research to foster collaboration and inclusivity in decision-making processes. She focused on the significance of foresight targeting and market intelligence, particularly in regions grappling with soil degradation and the impact of the climate crisis. Her presentation highlighted key priorities for driving impactful agricultural development, including effective data management, climate adaptation, and alignment of existing solutions with climate goals. The interconnectedness of foresight targeting, seed systems, and agile agronomy was underscored, emphasizing the importance of collaboration and addressing essential topics like nitrogen and climate change. Additionally, Snapp reiterated the crucial role of collaborative efforts between different teams and organizations in effectively advancing agricultural research and development initiatives.

To cap off three days of intense discussions and strategy-building, participants took part in fun team-building activities that echo CIMMYT’s core values of excellence, integrity, and teamwork.

Opinion: Aid competes with long-term solutions to Sudan’s hunger crisis

Written by dmedina on . Posted in Blogs, Director General's corner.

This terrible season of global conflict just hit a particularly grim milestone in Sudan with the one-year anniversary of the violent civil war last month. One consequence of the conflict is that Sudanese families are beginning to starve — and while emergency food aid is needed, so is investment in longer-term food production.

Political, economic, and social upheaval in the country has displaced over 8 million people and left nearly 25 million people in need of urgent food assistance, including more than 14 million children. The anniversary saw major donors mark the day with more than $2 billion in new aid pledges.

While these pledges are important, the international community also needs to rethink some of its aid strategies. Emergency food assistance for those at immediate risk of starvation is understandably a high priority now, but restoring food production within the country is just as important — otherwise donors risk racing from crisis to crisis and always falling short. It is time to break away from an aid-dependency model and invest directly in farmers.

In fact, challenges to Sudan’s agriculture were likely a contributing factor to the current conflict. The livelihoods of most people in Sudan depend on the agri-food sector, which has been under pressure in recent years. Economic stagnation, weather shocks, land conflicts, high inflation, and health crises made 9.8 million Sudanese severely food-insecure by 2021.

Sudan’s already low-yielding cropping system has been hit by global tightening in fertilizer supplies. The livestock sector represents 60% of Sudan’s agricultural GDP, and has been suffering from diminished rangelands, water shortages, flood events, and lack of animal health services.

Sudan is not alone, and it’s important that the donor community understand how. Eight out of 10 of the world’s worst food crises are driven by war, persecution, and conflict, in places such as Sudan, Yemen, the Palestinian territories, Myanmar, and the Democratic Republic of Congo. The confluence of conflict, state fragility, climate change, and poverty is already overwhelming the international community’s ability to respond to escalating humanitarian needs. The international community has to put more emphasis on anticipatory action, because reaction is just not going to be enough anymore.

The need to get ahead of the growing scale of humanitarian disasters has provoked new thinking and partnerships among research, development, and humanitarian organizations, such as ours.

We are investing in better risk assessment, preparation for future food crises, and accelerated learning about how climate change is affecting agricultural productivity and production. The significant resources and expertise of the international research-for-development community can make humanitarian responses in fragile and conflict-affected states more effective and optimal.

Sudan will hopefully show how this kind of intervention can work. Our organizations are part of an international effort to partner with Sudan’s farmers to improve livelihoods in the country. We had started operating across six Sudanese states just before the outbreak of the current conflict, training farmers on how to manage their crops, livestock, and natural resources, and supporting them to access drought-tolerant seeds, with a specific focus on last-mile delivery to women and youth. When the civil war started last year, we quickly pivoted to supporting farmers in safer locations and focusing on the needs of internally displaced people in new areas.

Make no mistake: Implementing these interventions in the current conditions is a heavy lift. Roadblocks, skyrocketing fuel costs, denied travel permits, and breakdowns in telephone service all impede communication with farmers and the delivery of seeds, tools, and training. The threat of emergent violence is driving displacement and staff turnover.

Nonetheless, our coalition has continued to operate. Local partners, including cooperatives, microfinance institutions, and private sector players have shown themselves to be especially effective as the conflict has escalated. These cooperatives, strengthened by farmer training, enable farmers to improve their production and incomes by pooling their resources.

For example, the 72-member Al Etihad women-led farmer cooperative in South Kordofan has initiated multiple enterprises, guided by a structured business plan that steers them toward a more empowered role in local food value chains.

Through the program, last-mile seed retailers have helped nearly 6,000 farmers access agronomic advisories and seeds at a subsidized price. This has empowered farmers like Fatna Mohammed, a 48-year-old widow and mother of three, to build a better livelihood from her small-scale groundnut and vegetable production. She reports that an increased harvest of 18 sacks of groundnut, up from five sacks, enabled her to invest in her farm and better feed her family.

This unique last-mile delivery network, carefully tailored to local realities and drivers, is helping Sudanese communities to survive the current crisis and it can be activated for the rebuilding period — which cannot come soon enough.

Sudan, as with many war-affected nations, is caught in a doom loop of insecurity: Any restoration of political stability requires economic activity, but any economic activity requires political stability. Both depend on physical security, which is hard to achieve without political stability and economic activity.

While a cessation of violence and the restoration of civil order is ultimately up to the parties to the conflict, a direct, international investment in farmers is a way to potentially break the cycle, simultaneously addressing the growing hunger crisis and helping build the preconditions for peace.

Read the original piece on Devex

Gridded crop modeling to simulate impacts of climate change and adaptation benefits in ACASA

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

Global temperatures are projected to warm between 1.5-2 degrees Celsius by the year 2050, and 2-4 degrees Celsius by 2100. This is likely to change precipitation patterns, which will impact crop yields, water availability, food security, and agricultural resilience.

To prepare for these challenges, Atlas of Climate Adaptation in South Asian Agriculture (ACASA) uses process-based simulation models that can predict crop growth, development, and yield in order to understand the response of crops to climate change. Models such as Decision Support System for Agrotechnology Transfer (DSSAT), InfoCrop, and Agricultural Production Systems Simulator (APSIM) facilitate the field scale study of the biophysical and biochemical processes of crops under various environmental conditions, revealing how they are affected by changing weather patterns.

The ACASA team, along with experts from Columbia University and the University of Florida, met for a three-day workshop in January 2024 to boost the work on spatial crop modeling. The aim was to design a modeling protocol through a hands-on demonstration on high-performance computers. When scientifically executed, gridded spatial crop modeling–even though complex and data-intensive–can be a great way to frame adaptation and mitigation strategies for improving food security, which is one of ACASA’s goals.

ACASA’s Spatial Crop Modelling Group meets in Colombo, Sri Lanka, January 2024. (Photo: CIMMYT)

Decisions on data

The group decided to use DSSAT, APSIM, and InfoCrop for simulating the impact of climatic risks on crops such as rice, wheat, maize, sorghum, millet, pigeon pea, chickpea, groundnut, soybean, mustard, potato, cotton, and more. They chose harmonized protocols across all three models with standard inputs, such as conducting simulations at 0.05 degrees. The model input data about weather, soil, crop varietal coefficients, and crop management are being collected and processed for model input formats at 5 kilometer (km) spatial resolution.

A Python version called DSSAT-Pythia is now available to accelerate spatial and gridded applications. The programming for implementing InfoCrop on the Pythia platform is in progress. InfoCrop has been proven in India for past yield estimations, climate change spatial impact, and adaptation assessments for 12 crops.

For other crucial modeling components, a work plan was created including developing regional crop masks, crop zones based on mega-commodity environments as defined by CGIAR, production systems, crop calendars, and irrigated areas by crop. Genetic coefficients will then be calculated from measured past values and recent benchmark data of varietal units.

With this information, several adaptation options will be simulated, including changes in planting dates, stress-tolerant varieties, irrigation, and nitrogen fertilizer (quantity, methods, and technology), residue/mulching, and conservation tillage. The team will evaluate impact and adaptation benefits on yields, water, and nitrogen-use efficiency based on the reported percentage change from the baseline data.

As the project progresses, this work will make strides towards realizing food security for the planet and increasing the resilience of smallholder farming practices.

Blog written by Anooja Thomas, University of Florida; Apurbo K Chaki, BARI, Bangladesh; Gerrit Hoogenboom, University of Florida; S Naresh Kumar, ICAR-IARI, India

Roots of resilience: my journey as a Conservation Agriculture champion

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

I am Grace Malaicha, a proud native of the Zidyana Extension Planning Areas in Central Malawi, where my journey with Conservation Agriculture (CA) began. In 2005, I observed neighboring farmers practicing CA techniques on their land. Intrigued and inspired, I decided to embark on this path myself, joining the CA program initiated by CIMMYT and Total LandCare in 2006. I started practicing it on my demonstration plot and observed that yields were getting higher from the second year onwards.

My dedication to CA has changed not only myself but also influenced other members of my farming community. As a mother trial host farmer under the CGIAR Initiative: Diversification for resilient agribusiness ecosystems in East and Southern Africa today, I have been implementing different treatments, which include maize doubled-up legume system and improved drought-tolerant maize varieties planted under CA on flat land and comparing it to the traditional ridge tillage system that involves substantial soil movement.

But what does CA mean to me? It is more than just a set of principles that I apply like minimum soil disturbance, mulching, and crop rotation. CA reduces drudgery, secures yields, and maintains productivity in times of climate change. CA has changed my approach to farming, transforming my once conventional maize monocrop into a diverse maize-legume system. By intercropping with two crops, I have spread the risk of unanticipated crop failure, while incorporating groundnut, cowpeas, and pigeon pea into the mix, which are more drought tolerant. I increased the land area under CA and tried it on many other crops including different legumes as rotation or intercrops, birds-eye chili, vegetables, and cassava.

Over the years, I have witnessed firsthand the harsh realities of a changing climate in central Malawi, from intense heat to prolonged droughts and erratic rainfall patterns. This year, 2024, has even been worse due to the prolonged dry spells between January and February, and the erratic rainfall during this time. Despite these challenges, our CA plots have continued to thrive, showcasing the resilience and adaptability of climate-smart farming practices.

Grace trains farmers on Conservation Agriculture. (Photo: Christian Thierfelder/CIMMYT)

Recognizing the power of knowledge sharing and from the encouragement by CIMMYT and Total LandCare, I started to train fellow farmers, both locally and across borders. At first, I worked with women groups around my homestead and trained about 100 female farmers on the principles of CA. I was fortunate to be given the opportunity to train other farmers in other districts of Malawi. Since 2008, I have also trained farmers in eastern Zambia and from Mozambique where all farmers speak my language Chichewa. Farmers believe other farmers more and are now realizing the benefits of implementing CA in their own fields.

I enrolled to be a local trainer in CA within my community in 2016. My passion for teaching and catalyzing change has led to the adoption of CA by numerous farmers. I embrace my commitment to ongoing learning through carefully implementing these CA trials and playing an active role during awareness meetings.

My life had changed so much. I was speaking on the radio and television. In 2012, the Minister of Agriculture visited my plot, and I was asked to speak in front of a Parliamentary Committee about my experiences as a smallholder woman farmer in Malawi. I spoke about what women can do in agriculture and what changes I made on my land. From representing my country at high level meetings, each step has shaped me into a resilient and empowered woman.

However, my journey has not been without obstacles, including hardships in my personal relationship. In 2012, I made the decision to join my husband in South Africa where I took up menial jobs to earn a living, abandoning my plot back home. But my true passion lay in farming, and I decided to make the bold decision to come back home, leaving my husband and continue with farming. Through perseverance and determination, I have overcome these challenges, and I am now much stronger.

Grace Malaicha stands in her field. (Photo: Christian Thierfelder/CIMMYT)

Today, I stand with pride in front of my CA plot, not only sustaining my family but also sending all my children to school. I now converted all my land to conservation agriculture, 3ha are under maize and 2ha under groundnuts. Beyond farming, I have investments in housing, claiming rentals in the nearby town of Salima to sustain my financial income and expand in farming.

I will continue on this path as I learned so much over the years and believe that CA may be the only climate-smart agriculture response in reach of smallholder farmers that everybody can apply, and I will continue to support others as a champion of CA.

Greater successes through NARS partnerships

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

Map: BISA works with National Agricultural Research Systems (NARS) of South Asia to develop ACASA.

Atlas of Climate Adaptation in South Asian Agriculture (ACASA) is different from many projects supported by our team. I would love to dive into the promising features of the ACASA platform and the exciting technical advances being made, but I want to focus here on how the Borlaug Institute for South Asia (BISA) has organized this program for greater and longer-term impact.

BISA is a strong regional partner and is the lead institution for the ACASA program. In fact, we could have simply asked BISA to build the ACASA platform and known they would make a great technical product. However, our goal is not just to have great technical products, but also to improve the lives of small-scale producers. For any great technical product to deliver impact, it must be used.

From day one, the ACASA program has not just kept the users’ needs in mind, indeed they have kept the users themselves engaged on the project. By establishing strong, financially supported partnerships with the National Agricultural Research Systems (NARS) in Bangladesh, India, Nepal, and Sri Lanka, they are achieving four key outcomes, among many others:

  1. Benefit from local expertise regarding national agricultural practices, climate risks, and solutions
  2. Leverage NARS connections to national and subnational decision makers to inform product requirements
  3. Establish national ownership with a partner mandated to support users of the product
  4. Strengthen climate adaptation analytics across South Asia through peer-to-peer learning.

These outcomes lead to more accurate and appropriate products, user trust, and the long-term capacity to maintain and update the ACASA platform. The latter being essential given the constantly improving nature of our understanding of and predictions around climate and agriculture.

If this model of working has such advantages over “if you build it, they will come”, you might wonder why we do not use it in all cases. This approach requires divergence from business-as-usual for most researchers and is not without a cost. The BISA team are not only putting deep emphasis on the technical development of this product, but they are also spending considerable time, effort, and budget to create a program structure where the NARS are catalytic partners. The NARS teams are empowered on the project to contribute to methodologies used beyond their national boundaries, they have the task of making the best data available and validating the outputs, the responsibility of understanding and representing stakeholder requirements, and the ownership of their national platform for long-term use. BISA has developed a structure of accountability, provided funding, facilitated team-wide and theme-specific workshops, and shared decision-making power, which all presents additional work.

In the end, we encouraged this approach because we see too many decision support tools and platforms developed by international researchers who merely consult with users a few times during a project. These efforts may result in building captivating products, meeting all the needs brainstormed by the research team, but their future is sitting in a dusty (and unfortunately crowded) corner of the internet. While this approach seems fast and efficient, the efficiency is zero if there is no value gained from the output. So, we look for other ways to operate and engage with partners, to work within existing systems, and to move beyond theoretically useful products to ones that are used to address needs and can be evolved as those needs change. BISA has been an exemplary partner in building and supporting a strong ACASA team, and we are eager to see how each NARS partner leverages the ACASA product to generate impact for small-scale producers.

Tess Russo is a senior program officer at the Bill & Melinda Gates Foundation, based in Seattle, United States.  

Re-imagining heat tolerance traits in wheat

Written by dmedina on . Posted in In the media.

Researchers, funded by the GRDC, are collaborating with experts from ANU, the University of Adelaide, and CIMMYT to enhance heat tolerance in wheat. Led by Professor Owen Atkin and Dr. Scott Boden, the projects aim to identify genetic markers for breeding heat-resistant varieties. Using advanced phenotyping technology, scientists are exploring biochemical pathways and heat shock proteins to develop solutions for climate change-induced challenges in agriculture.

Read the full story.

Agricultural research adds billions of dollars to economy

Written by Sarah McLaughlin on . Posted in Publications.

As the world searches for effective solutions to mitigate and adapt to climate change while navigating the cost-of-living crisis, delivering food security goals alongside robust economic value is more imperative than ever in agricultural research.

CGIAR plays a vital role in this mission, aiming to transform food, land, and water systems in collaboration with its 15 Research Centers, such as CIMMYT. Now, a new study published in World Development comprehensively analyzes CGIAR’s fiscal impact on global agricultural over nearly 60 years.

The economic impact of CGIAR-related crop technologies on agricultural productivity in developing countries, 1961–2020 suggests that adoption of these technologies equates to US $47 billion annually in economic benefits, with an overall economic benefit of US $1,334 billion for the years covered by the study.

Additionally, investment in productivity gains for staple crops in developing countries has aided entire populations by securing lower food prices and generating large local growth multipliers, thus achieving a greater impact on poverty reduction when compared to productivity growth in other sectors.

CIMMYT contributes 40% of total CGIAR varietal impact

At least 221 million hectares in at least 92 countries were occupied by CGIAR crop technologies in 2020. Between 2016 and 2020, CIMMYT maize varieties accounted for 24.5 million hectares (11%) of this figure, while CIMMYT wheat varieties made up almost 74 million hectares (33%).

An example of how these CIMMYT varieties impact farmers can be seen in sub-Saharan Africa, where using improved maize seed led to an overall average increase of 38.9% in yields to 1,104 kilograms per hectare (kg/ha), equal to an increase of 429 kg/ha. With increased yields come increased profits and employment security for farmers and their families.

The frequency with which technologies are upgraded also signifies the impact of agricultural research and development (R&D) on crop productivity and the economy. On the 221 million ha planting area, many farmers utilize second or third generation technologies. For example, average varietal generation in maize is estimated to be 1.1, meaning that 10% of farmers use a second-generation variety, and most wheat farmers were also using second or third generation modern varieties. This highlights that ongoing crop research continued to impact productivity, even when the size of the adoption area remained constant.

Expanding the impact

As CGIAR’s reach and capacity have grown, economic benefits are now apparent in an increased number of global regions compared to when its work began. Initially, most economic benefits came from wheat and rice farming in Asia; however, 30% of CGIAR crop technologies now occupy sub-Saharan Africa, generating a significant share of its impact. This region remains heavily reliant upon CGIAR-related varieties, so continued investment is encouraged to maintain and build on the positive outcomes achieved to date.

“Considering the urgent need to attain nutrition security, CIMMYT always seeks ways to assure global food systems,” said Bram Govaerts, director general of CIMMYT. “This thorough analysis is a strong validation of CIMMYT’s work and its significance not just for farmers and their immediate families, but for communities and generations into the future. Our collaborative partnerships with CGIAR Research Centers and National Agricultural Research Systems (NARS) are integral in delivering successful projects that enable smallholder farmers to maximize the potential of their land.”

While similar studies have been undertaken in the past, this work takes a unique approach by drawing on a wider range of evidence built on country- and crop-specific data, such as the adoption of crop improvement technologies and productivity impacts per hectare, thereby providing a more granular assessment of CGIAR’s economic inputs.

Read the full study: The economic impact of CGIAR-related crop technologies on agricultural productivity in developing countries, 1961–2020.

Sustaining Conservation Agriculture initiatives: lessons from Malawi

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

Sub-Saharan Africa (SSA) has experienced the worst impacts of climate change on agriculture over the past decades and projections show such effects are going to intensify in the coming years. Diminished agricultural production has been the primary impact channel given the high reliance on rainfed agriculture in the region. Combined with a growing population, food security for millions of people is threatened.

Conservation Agriculture (CA) is a sustainable cropping system that can help reverse soil degradation, augment soil health, increase crop yields, and reduce labor requirements while helping smallholder farmers adapt to climate change. It is built on three core principles of minimum soil disturbance, crop residue retention, and crop diversification.

CA was introduced in southern Africa in the 1990s, but its adoption has been patchy and often associated with commercial farming. A group of researchers, led by Christian Thierfelder, principal cropping systems agronomist at CIMMYT, set out to understand the reasons why smallholder farmers adopt CA, or why they might not or indeed dis-adopt. Their results were published in Renewable Agriculture and Food Systems on March 12, 2024.

Conservation Agriculture plot. (Photo: CIMMYT)

“Conservation Agriculture can cushion farmers from the effects of climate change through its capacity to retain more soil water in response to high water infiltration and increased soil organic carbon. It is therefore a viable option to deal with increased heat and drought stress,” said Thierfelder. However, even with these benefits, adoption of CA has not been as widespread in countries like Malawi.

“There are regions within Malawi where CA has been promoted for a long time, also known as sentinel sites,” said Thierfelder. “In such places, adoption is rising, indicating that farmers are realizing the benefits of CA over time. Examining adoption dynamics in sentinel sites can provide valuable lessons on scaling CA and why some regions experience large rates of non- or dis-adoption.”

Thierfelder and his co-authors, Innocent Pangapanga-Phiri of the Center for Agricultural Research and Development (CARD) of the Lilongwe University of Agriculture and Natural Resources (LUANAR), and Hambulo Ngoma, scientist and agricultural economist at CIMMYT, examined the Nkhotakota district in central Malawi, one of the most promising examples of widespread CA adoption.

Total LandCare (TLC), a regional NGO working in Malawi has been consistently promoting CA in tandem with CIMMYT in the Nkhotakota district since 2005.

Results from both individual farmer interviews and focused group discussions revealed that farmers that implement CA saw higher yields per hectare than those who practiced conventional tillage practices. In addition, farmers using CA indicated greater resilience in times of drought, improved soil fertility, and reduced pest infestation.

Why adopt CA?

The primary factors enhancing CA adoption in the Nkhotakota district were the availability of training, extension and advisory services, and demonstration plots by the host farmers. Host farmers are farmers that have been trained by a TLC extension officer and have their own plot of land to demonstrate CA methods. In addition, host farmers train other farmers and share knowledge and skills through farmer field days and other local agricultural exhibitions.

“Social networks among the farmers serve a vital role in CA adoption,” said Ngoma. “Seeing tangible success carries significant weight for non-adopter farmers or temporal dis-adopters which can persuade them to adopt.”

Maize demonstration plot. (Photo: CIMMYT)

During focus group discussions facilitated by the authors, farmers indicated that demonstration plots also removed fear for the unknown and debunked some myths regarding CA systems, for example, that practitioners show ‘laziness’ if they do not conventionally till their land.

“This suggests that CA uptake could be enhanced with increased, targeted, and long-term promotion efforts that include demonstration plots,” said Ngoma.

Similarly, the longer duration of CA exposure positively influenced farmers’ decisions to adopt CA methods as longer exposure might allow farmers to better understand the benefits of CA practices.

Why not adopt CA?

Farmers reported socioeconomic, financial, and technical constraints to adopt CA. An example is that farmers might not have the labor and time available for weed control, a necessary step in the first few years after the transition to CA.

“Weed control is an important challenge during the early years of CA adoption and can be seen as the ‘Achilles heel’ of CA adoption,” said Thierfelder. CIMMYT scientists therefore focused a lot of research in recent years to find alternative weed control strategies based on integrated weed management (IWM) using chemical, biological, and mechanical control options.

Examining the stover in a maize plot. (Photo: CIMMYT)

In most cases, the benefits of CA adoption are seen only after 2 to 5 years. Having such a long-term view is not always possible for smallholder farmers, who often must make decisions based on current conditions and have immediate family obligations to meet.

As a contrast to adopters of CA, non-adopters reported a lack of knowledge about CA as a whole and a lack of specific technical knowledge needed to transition from more traditional methods to CA.

This scarcity of technical support is often due to the lack of strong agriculture extension support systems. Since CA adoption can be complex, capacity building of both farmers and extension agents can therefore foster adoption and implementation of CA. This reinforces that farmer-to-farmer approaches through host farmers could complement other sources of extension to foster adoption.

Next steps

The authors identified three policy recommendations to accelerate CA adoption. First, there is a need to continue promoting CA using farmer-centric approaches more consistently, e.g., the host farmer approach. Using a farmer-centered approach facilitates experiential learning and can serve as a motivation for peer-to-peer exchange and learning and can reduce misinformation. The host farmer approach can be augmented by mega-demonstrations to showcase CA implementation at scale. In addition, rapid and mass extension delivery can be enhanced by using digital technologies.

Second, CA promotion should allow farmers the time to experiment with different CA options before adoption. What remains unclear at the policy level is the types of incentives and support that can be given to farmers to encourage experimentation without creating economic dependence. NGOs and extension workers could help farmers deal with the weed pressure soon after converting from full to minimum tillage by providing herbicides and training.

Third, there is a need to build and strengthen farmer groups to facilitate easier access to training, to serve as conduits for incentive schemes such as payments for environmental services, and conditional input subsidies for CA farmers. Such market-smart incentives are key to induce initial adoption in the short term and to facilitate sustained adoption.

Stakeholders call for a holistic approach to managing Kenya’s dryland crop seed system

Written by dmedina on . Posted in In the media.

In February 2024, the Kenya Drylands Crop Seed Systems Workshop, co-hosted by CIMMYT and KALRO in Nairobi, focused on enhancing seed systems for key dryland crops like pigeon pea and sorghum. The workshop aimed to align innovative breeding with effective seed distribution, crucial for improving agricultural productivity and food security in Kenya’s semi-arid regions.

Read the full story.

Digging in the Dirt: Detailed soil maps guide decision-making, from the field to the policy room

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

When a non-farmer looks upon a field, they might just see it as an expanse of dirt and give no more thought to it. But to a farmer, that dirt is soil, the lifeblood of agriculture. Among other things, soil delivers necessary nutrients to crops, allowing them to grow and flourish.

About 95% of the food consumed around the world grows from soil, which is rapidly deteriorating because of unsustainable human activity. Around 33% of all soils around the world are degraded, meaning they can no longer sustain the same level of agricultural activity. This leads to lower crop yields, which potentially leads farmers to increase their use of fertilizer to overcome the damaged soil. But increased nitrogen fertilizer use has profound climate change effects, as poor fertilizer management, including overuse, can lead to nitrous oxide (a greenhouse gas) leaking into the air and nitrates into groundwater, rivers, and other water systems.

Sampling points in the state of Celaya, Guanajuato Mexico. (Photo: CIMMYT)

An important implement in the effort to preserve soil fertility is the practice of soil mapping, a process which produces detailed physical and chemical soil properties within a region. Things like the amount of nutrients, acidity, water conductivity, and bulk density, help guide decision making from individual farmers all the way to regional and national stakeholders.

The Sustainable Productivity Growth Coalition, a United Nations initiative which aims to accelerate the transition to more sustainable food systems through a holistic approach to productivity growth to optimize agricultural sustainability, featured soil mapping as an innovative, evidence-based approach for accelerating sustainable productivity growth in its 2023 report.

A global soil mapping initiative is underway led by the Food and Agriculture Organization of the United Nations (FAO) and the Global Soil Partnership with important contributions from CIMMYT scientist working in Mexico.

“Soil mapping of an agricultural region for chemical and physical soil properties offers a range of benefits that can significantly improve agricultural practices, land management, and overall productivity,” said Ivan Ortiz Monasterio, CIMMYT principal scientist.

Map for Phosphorus Bray 1. (Photo: CIMMYT)

Soil maps = blueprints

Using up-to-date soil information at the national scale can help to plan agricultural and land planning interventions and policies, by excluding areas with higher carbon content or fertility from urbanization plans, or by planning the implementation of irrigation schemes with high-quality water in salt-affected areas.

For farmers, there are many benefits, including the creation of nutrient management plans, which are perhaps the most important. These plans guide decisions about application rates and timing of inputs like fertilizers, help avoid over-application, and reduce the risk of runoff and pollution. This supports sustainable agriculture while reducing costs and minimizing nutrient pollution.

Map for zinc. (Photo: CIMMYT)

“There are many other benefits,” said Ortiz Monasterio. “From improved irrigation management, to informed crop decisions, to things like climate resilience because more fertile soils are better able to cope with the challenges of climate variation.”

Collaboration across the seed system value chain

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

Collaboration among diverse seed value chain actors is essential to improving seed systems for dryland crops in Kenya and contributing to food security in an era marked by climate change. This holistic approach is essential at a time when sustainable agricultural practices are increasingly becoming pertinent in semi-arid and high-potential areas, as emphasized by participants attending a multi-stakeholder seed systems meeting in Nairobi.

The Kenya Drylands Crop Seed Systems Workshop in February 2024 brought together various stakeholders from the agricultural sector, including farmers, policymakers, researchers, and the private sector. The main aim of this meeting was to identify practical ways to address critical challenges in the seed system for key dryland crops—pigeon pea, chickpea, groundnut, millets, and sorghum—essential to the livelihoods of millions in Kenya. Organized by CIMMYT and the Kenya Agricultural and Livestock Research Organization (KALRO), this collaborative effort aimed to gather insights and jointly develop a seed systems strategy to strengthen a seed supply system that matches grain demand for these essential grains.

A group photo of the participants in the Kenya Drylands Crop Seed Systems Workshop. (Photo: Maria Monayo/CIMMYT)

While moderating the discussion, Patrick Ketiem, director of agricultural mechanization research at KALRO, highlighted the importance of the situation. “The demand for drought-tolerant dryland crops and varieties is a clarion call for breeders to innovate further,” he explained. This reflects a broader trend across the country, where even high-potential areas are shifting to dryland crops in response to unpredictable weather patterns.

Addressing farmer needs

The workshop allowed participants to delve into the intricacies of seed systems, from varietal preferences to market readiness, highlighting the importance of collaboration among breeders, distributors, and farmers. Moses Siambi, CIMMYT’s regional director for Africa, emphasized the importance of integrating passion with science to make a tangible difference in the lives of farmers. “Our work is not just about developing varieties,” Siambi remarked. “It’s about improving livelihoods and ensuring that the benefits of our research reach the smallholder farmer,” he explained, emphasizing the broader impact of CIMMYT’s efforts to boost agricultural productivity, food security, and livelihoods in the face of climate change.

Moses Siambi, CIMMYT’s regional director for Africa, engages in a conversation with a participant. (Photo: Maria Monayo/CIMMYT)

Chris Ojiewo, partnerships and seed systems lead at CIMMYT, explained the vision for the Dryland Crops program, referencing the journey of the Accelerated Varietal Improvement and Seed Delivery of Legumes and Cereals in Africa (AVISA) project, which was a culmination of a decade of research aimed at introducing new, diverse, and farmer-preferred crop varieties to farming communities through a variety of seed delivery models.

“The essence of our endeavor is to ensure that the genetic gains from our breeding efforts result in real benefits for the farmers,” he said. “Developing seed varieties with the end-user in mind is crucial to ensure that crops not only reach the farmers but also meet their specific needs effectively.”

Chris Ojiewo, partnerships and seed systems lead at CIMMYT, provides insights on the future of the Dryland Crops program, leveraging ten years of research from AVISA. (Photo: Maria Monayo/CIMMYT)

Improving seed systems

The workshop discussions also highlighted the importance of innovation in seed delivery models and the need for increased investment in the dryland crops sector as essential strategies for addressing current challenges and capitalizing on new opportunities. Investment decisions will be guided by granular data on local grain demand, enhancing seed production planning. Additionally, insights from institutions such as the Agriculture and Food Authority (AFA) and the State Department of Agriculture, consolidating per capita consumption data, will aid in determining the requisite seed supply per capita. Moreover, there is need for a mechanism for facilitating knowledge through consolidating data from existing projects that tackle comparable challenges related to food security and seed accessibility.

Lusike Wasilwa, crops systems director at KALRO, who represented the organization’s director general at the event, stressed the importance of seeds in agriculture. “From genes to gains, our focus is on developing climate-smart, nutritious crops that not only enhance soil health but also ensure food security in Kenya,” Wasilwa said. She further highlighted the importance of soil health and market development in achieving sustainable food production in arid and semi-arid lands, promoting biodiversity, and sustainable land management practices.

Lusike Wasilwa, the crops systems director at KALRO, who represents the organization’s director general at the event, emphasizes the importance of seeds in agriculture. (Photo: Maria Monayo/CIMMYT)

Cross-cutting issues

The workshop also addressed regulatory and control measures in seed production with Stellamaris Mulika, principal seed inspector from the Kenya Plant Health Inspectorate Service (KEPHIS), highlighting the importance of stringent quality control measures to ensure the dissemination of quality seed of superior crop varieties.

The importance of gender inclusivity and youth engagement in agriculture was also acknowledged, reflecting women and youth’s critical role in legume and cereal variety selection, diversifying seed sources, and meaningfully contributing to the seed value chain. Veneza Kendi, a student at Jomo Kenyatta University of Agriculture and Technology (JKUAT), proposed several interventions to increase investment capacity for farmers and aggregators, mainly from the assurance of high yields from certified seeds to farmers, serving as a motivation.

Gloria Mutheu, a seed merchant at Dryland Seed Company, highlighted the need for government support in investing in the grain sector, citing the school feeding program as an initiative to pull seed demand. Mutheu urged the government to expand the crop types in legumes and cereals, such as chickpeas, included in these school feeding programs to increase demand. This, she argued, would gradually establish an inclusive seed system for increasing uptake of these underutilized but opportunity nutrient-dense crops.

Gloria Mutheu, a seed merchant at Dryland Seed Company, and Veneza Kendi, a student at Jomo Kenyatta University of Agriculture and Technology (JKUAT), discuss the vital role of youth in the seed systems value chain. (Photo: Maria Monayo/CIMMYT)

The consensus was clear: to enhance the seed systems for dryland crops, there must be collaboration across the entire value chain—from breeders to farmers, from policymakers to the private sector. This integrated approach is critical for Kenya’s climate change adaptation, food security, and promotion of sustainable agricultural practices.

Spearheaded by CIMMYT with financial support from the Bill and Melinda Gates Foundation and the United States Agency for International Development (USAID), the AVISA project seeks to improve breeding and seed systems of dryland crops, as well as the livelihoods of small-scale producers and consumers in sub-Saharan Africa. CIMMYT is leveraging this opportunity to advance research and expand its influence through its 2030 strategy that shapes the future of agriculture as a driver of food and nutrition security, and climate resilient, sustainable, and inclusive agricultural development.

Nevada Researcher Aims to Improve Sorghum Hybrids for Dairy Cattle Feed

Written by dmedina on . Posted in In the media.

Melinda Yerka, a researcher from the University of Nevada, Reno, is collaborating with CIMMYT, focusing on enhancing sorghum hybrids for better dairy feed, utilizing her breakthroughs in sorghum breeding alongside CIMMYT’s agricultural expertise. Their joint efforts aim to develop sorghum varieties with higher protein and starch content, suitable for diverse climates, particularly in Africa. This partnership underscores a strategic approach to global food security, leveraging sorghum’s adaptability to support sustainable agriculture and climate resilience.

Read the full story.

Sow, grow, and thrive: a pathway to improve cassava farming in Zambia

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

For decades, women farmers like Maureen Bwalya from the Musa camp in Kasama district of northern Zambia, have upheld the tradition of cultivating cassava on ridges. These small piles of soil created by hand hoes, 30-50 cm tall and 50 cm wide are intended to reduce water logging and facilitate cassava growth. But forming row after row takes a significant amount of physical labor. Establishing ridges follows a traditional practice known as chitemene, a Bemba word which means “place where branches have been cut for a garden.”

Chitemene, a slash and burn technique once common in Zambia, involves cutting down standing trees in the Miombo woodlands, stacking the logs, and then burning them to create a thick layer of ash believed to enhance soil fertility. The ashen fields are initially cultivated with pearl millet and followed by crops like cassava. As years progressed, this method has been associated with adverse environmental impacts disrupting the ecosystem balance due to increasingly shortened fallow and recovery periods. However, with the ever-changing climate, Bwalya and other farmers recognize the need for sustainable practices that require less labor.

Alternatives to the traditional methods

Since childhood, Maureen Bwalya, a mother of seven from Musa Camp in the Kasama District of northern Zambia, has dedicated her life to cassava farming. Thriving under very low fertility and acidic soils, cassava has offered a lifeline amid the challenges of rural agriculture. When the Sustainable Intensification of Smallholder Farming Systems in Zambia (SIFAZ) project was introduced in the northern province, where cassava is a strategic crop, Bwalya saw a valuable opportunity for change to cultivate better practices that not only improve cassava yields but also replenish soil fertility in her fields.

“When I started these trials, it was a tough transition,” said Bwalya, reflecting on her journey. “Shifting from ridge planting to flat land cultivation posed its challenges as this practice was new to me. But with time, I have learned the advantages of intercropping: increased yields, less labor, and enhanced productivity, all of which enrich my farming practices.”

Maureen Bwalya gazes through her plot. (Photo: CIMMYT)

Implemented over the last five years by CIMMYT, in collaboration with FAO and the Ministry of Agriculture, SIFAZ aims to advance the intensification of farming practices and catalyze widespread adoption among farmers in Zambia. In the Musa camp, key partners took on the challenge of advancing better farming techniques with cassava. Their collective objective was clear: to identify methods that minimized labor intensity while maximizing yields. Through rigorous trials, including comparing flat land planting against traditional ridge systems and experimenting with intercropping cassava with common beans and groundnuts, promising results have been seen.

The outcomes yielded thus far have been nothing short of inspiring across farmers. It has become clear to farmers and researchers that cassava planted on flat land, particularly within a Conservation Agriculture (CA) framework, was not only feasible in high rainfall areas but also yielded significantly higher returns. Despite observing fewer root structures, the roots themselves proved to be robust and weighty, ultimately translating to increased productivity for smallholder farmers. Furthermore, farmers have confirmed that cassava from the CA plots tastes better than the one from the ridged portions.

“As a cassava trial implementer,” Bwalya said, “I undertook various trials exploring intercropping cassava with beans and groundnuts, across both flat and ridge systems.”

Thriving and innovating

Her six-hectare plot has become a hub of experimentation, with 0.3 hectares dedicated to the ongoing trials. Encouraged by the successes and promising yields witnessed on flat land, Maureen extended these sustainable practices to the remaining expanse, intercropping maize with cassava. Her results have been noticed, drawing the interest of over fifty neighboring farmers, inspired by her flourishing plot.

As the harvesting season approaches, Bwalya faces no shortage of opportunities to market her produce. From cassava cuttings to nutrient-rich leaves and tubers, she never runs short of eager buyers in local markets, ensuring a steady income for her family.

Navigating through the different trials across the Kasama district, pockets of adoption in some farmers’ fields are noticeable. Through collaborative partnerships and community engagement, SIFAZ strives to empower farmers with the knowledge and tools stemming from the trials to become more food secure in the face of evolving climatic challenges.