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Theme: Environmental health and biodiversity

The world needs better management of water, soil, nutrients, and biodiversity in crop, livestock, and fisheries systems, coupled with higher-order landscape considerations as well as circular economy and agroecological approaches.

CIMMYT and CGIAR use modern digital tools to bring together state-of-the-art Earth system observation and big data analysis to inform co-design of global solutions and national policies.

Our maize and wheat genebanks preserve the legacy of biodiversity, while breeders and researchers look at ways to reduce the environmental footprint of agriculture.

Ultimately, our work helps stay within planetary boundaries and limit water use, nutrient use, pollution, undesirable land use change, and biodiversity loss.

A Mexican farm research program gains praise and interest for use abroad

Written by Mike Listman on . Posted in Blogs.

Leveraging the leadership, science, and partnerships of the Mexico-based CIMMYT and the funding and research capacity of Mexico’s Secretariat of Agriculture and Rural Development (SADER) during 2010-21, the program known as “MasAgro” has helped up to 500,000 participating farmers to adopt improved maize and wheat varieties and resource-conserving practices on more than 1 million hectares of farmland in 30 states of Mexico.

Tlaltizapan Experimental Station in Morelos, Mexico is used through the winter for drought and heat trials and through the summer for yield-trials and biofortification. (Photo: Alfonso Cortés/CIMMYT)

As a result of MasAgro research hubs operating across Mexico’s multiple and diverse agroecologies to promote the sustainable intensification of maize and wheat farming systems — including improved varieties and resource-conserving, climate-smart practices — yields of project participants for maize were 20% higher and for wheat 3% higher than local averages. Similarly, average net incomes for participating maize farmers were 23% greater and 4% greater for wheat farmers, compared to local averages.

The MasAgro biodiversity component gathered and analyzed one of the world’s largest-ever samplings of maize and wheat genetic diversity, including CIMMYT’s own vast seed bank collections, to help identify and characterize new genes of interest for breeding. As one result, more than 2 billion genetic data points and over 870,000 data entries from associated field trials are freely available to the scientific community, via the project’s online repository.

MasAgro has involved national and local research organizations, universities, companies, and non-government organizations working through more than 40 research platforms and 1,000 demonstration modules, while building the capacity of thousands of farmers and hundreds of technical and extension experts who serve them.

State-level partners sign on to MasAgro

Through MasAgro, CIMMYT entered into research and development partnerships with 12 Mexican states. An example is the mountainous, central Mexican state of Guanajuato, home to the El Bajío region, one of Mexico’s most productive farm areas but which also suffers from soil degradation, water scarcity, and climate change effects — challenges faced by farmers throughout Mexico. The governor of Guanajuato visited CIMMYT headquarters in Mexico in June 2023 to review progress and agree on follow-up activities.

MasAgro generated more sustainable production and irrigation systems in Guanajuato, Mexico. (Photo: ACCIMMYT)

CIMMYT has worked with Guanajuato state and local experts and farmers themselves to test and promote innovations through 7 research platforms reaching nearly 150,000 hectares. As of 2020, new crop varieties and resource-conserving, climate-smart management practices had helped underpin increases of 14% in irrigated wheat production and, under rainfed farming systems, improved outputs of 28% for beans, 150% for local maize varieties and 190% for hybrid maize, over state averages.

An integral soil fertility initiative has included the analysis and mapping of more than 100,000 hectares of farmland, helping Guanajuato farmers to cut costs, use fertilizer more effectively, and reduce the burning of crop residues and associated air pollution.

Service centers for the rental and repair of conservation agriculture machinery are helping to spread practices such as zero tillage and residue mulches. Supported by CIMMYT advisors, Guanajuato farmers are entering into equitable and ecologically friendly production agreements with companies such as Nestle, Kellogg’s, and Heineken, among other profitable and responsible public-private arrangements.

Acclaim and interest abroad for MasAgro

MasAgro has received numerous awards and mentions as a model for sustainable agricultural development. A few examples:

Dignitaries applaud MasAgro launch at CIMMYT. (Photo: Xochiquetzal Fonseca/CIMMYT)
  • The Inter-American Development Bank (IDB) mentioned the program as an example of successful extension.
  • The Organization for Economic Cooperation and Development (OECD) cited MasAgro for promoting productive and sustainable agriculture.
  • The United Nations Development Program (UNDP) lauded MasAgro for promoting climate-resilient agriculture.
  • During the 2018 G20 summit in Argentina, MasAgro was considered a model for coordinating agricultural research, development, innovation, technology transfer, and public-private partnerships.
  • Bram Govaerts, now Director General of CIMMYT, received the 2014 Norman Borlaug Field Award for his work at the time as leader of MasAgro’s farmer outreach component.
  • MasAgro research hubs were recently used as a guide by USAID for efforts in Sudan and Eastern Africa. They have also been replicated in Guatemala and Honduras.

Moving out and beyond

In Central America and Mexico, the inter-connected crises of weak agri-food systems, climate change, conflict, and migration have worsened, while small-scale farmers and marginalized sectors remain mired in poverty.

Capitalizing on its experience in MasAgro, CIMMYT is a major partner in the recently launched CGIAR initiative, AgriLAC Resiliente, which aims to build the resilience, sustainability, and competitiveness of agrifood systems and actors in Latin America and the Caribbean, helping them to meet urgent food security needs, mitigate climate hazards, stabilize vulnerable communities, and reduce forced migration. The effort will focus on farmers in Colombia, El Salvador, Honduras, Mexico, Nicaragua, and Peru.

Farmer Marilu Meza Morales harvests her maize in Comitán, Mexico. (Photo: Peter Lowe/CIMMYT)

As described in a 2021 science journal article, CIMMYT also helped create the integrated agri-food system initiative (IASI), a methodology that was developed and validated through case studies in Mexico and Colombia, and leverages situation analysis, model predictions, and scenarios to synchronize public and private action toward sustainable, equitable, and inclusive agri-food systems.

“CIMMYT’s integrated development approach to maize system transformation in Mexico and Colombia laid the foundations for the IASI methodology by overcoming government transitions, annual budget constraints, and win-or-lose rivalries between stakeholders, in favor of equity, profitability, resilience and sustainability,” said Govaerts.

The 2021 Global Agricultural Productivity (GAP) report “Strengthening the Climate for Sustainable Agricultural Growth” endorsed IASI, saying it “…is designed to generate strategies, actions and quantitative, Sustainable-Development-Goals-aligned targets that have a significant likelihood of supportive public and private investment.”

SPG Coalition: CIMMYT is a leading organization for climate-smart agriculture, nutrient-use efficiency, and pest and fertilizer management

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

The Coalition on Sustainable Productivity Growth for Food Security and Resource Conservation (SPG Coalition) brings together researchers, non-governmental organizations, and private sector partners to advance a world with greater access to nutritious food and affordable diets. The Coalition recognizes that increasing the productivity of natural resources through climate adaptation and mitigation is instrumental to reaching this goal.

In a recent report, the SPG Coalition provides a path forward for NGOs, research institutions, and government agencies to strengthen agrifood and climate policies. The report contains real-life, evidence-based examples to further the sustainable production and conservation of natural resources, detailing the potential impacts on social, economic, and environmental conditions.

CIMMYT features prominently in the report as a leading organization focused on 4 main areas: climate-smart agriculture, nutrient-use efficiency (NUE), and pest and fertilizer management.

Nutrient-use efficiency and fertilizer management

While chemical fertilizers increase crop yields, excessive or improper use of fertilizers contributes to greenhouse gas emissions (GHG) and increases labor costs for smallholders. Efficient NUE is central to nutrient management and climate change mitigation and adaptation.

Women using spreader for fertilizer application. (Photo: Wasim Iftikar/CSISA)

In India, CIMMYT, along with the Borlaug Institute for South Asia (BISA), CGIAR Research Centers, and regional partners, tested digital tools like the Nutrient Expert (NE) decision support tool which measures proper fertilizer use for optimized yields and provides nutrient recommendations based on local soil conditions.

The majority of smallholders who applied the NE tool reported higher yields while emitting less GHG emissions by 12-20% in wheat and by around 2.5% in rice as compared with conventional fertilization practices. Farmers also recorded double economic gains: increased yields and reduced fertilizer costs. Wider government scaling of NE could enhance regional food security and mitigate GHG emissions.

The Feed the Future Nepal Seed and Fertilizer (NSAF) project, led by CIMMYT and USAID, advocates for climate-smart agriculture by linking smallholders with improved seed, providing capacity-building programs, and promoting efficient fertilizer use. With a vast network established with the support from the Government of Nepal, NSAF successfully provides smallholders with expanded market access and nutritious and climate-resilient crop varieties.

Climate-smart maize breeding 

Since its arrival to sub-Saharan Africa (SSA) in 2016, fall armyworm (FAW) has devastated maize harvests for countless smallholders on the continent. Economic uncertainty caused by unstable yields and climate stressors like drought coupled with this endemic pest risk aggravating food insecurity.

Fall armyworm. (Photo: Jennifer Johnson/CIMMYT)

CIMMYT and NARES Partner Institutions in Eastern and Southern Africa are spearheading a robust pest management project to develop, screen, and introduce genetically resistant elite maize hybrids across SSA. South Sudan, Zambia, Kenya, and Malawi have already deployed resistant maize varieties, and eight other countries in the region are projected to release their own in 2023. These countries are also conducting National Performance Trials (NPTs) to increase awareness of host plant resistance for the sustainable control of FAW and to sensitize policymakers on accelerating the delivery of FAW-tolerant maize varieties.

The establishment of FAW screening facilities in Africa permits more rapid detection and breeding of maize varieties with native genetic resistance to FAW, facilitating increased deployment of these varieties across Africa. The sustainable control of FAW demands a rapid-response effort, overseen by research organizations and governments, to further develop and validate genetic resistance to fall armyworms. Achieving greater impact for maize smallholders is critical to ensuring improved income and food security in Africa. It is also paramount for biodiversity conservation and removing labor burden on farmers applying additional synthetic pesticides to prevent further losses by the pest.

“The SPG Coalition report emphasizes the power of partnership to enhance financial and food security for smallholder communities in the Global South. This is fully in line with the recently launched CIMMYT 2030 strategy. It’s also an important reminder to assess our strong points and where more investment and collaboration is needed,” said Bram Govaerts, CIMMYT director general.

Climate Adaptation Atlas will support evidence-based solutions in Sri Lanka

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

We are all aware the immense challenges countries face due to climate change, particularly its impacts on vital sectors like agriculture, forestry and livestock. The agriculture industry is profoundly affected by unpredictable weather patterns and frequent incidences of extreme events such as floods, droughts and landslides. Consequently, finding effective solutions to address these issues becomes of paramount importance. Climate-resilient agriculture necessitates the adoption of sustainable crop and land management technologies.

(Photo: Karen Conniff/IWMI)

In the context of South Asia, Sri Lanka stands out as one of the most severely affected countries by the impacts of climate change. The nation contends with a multitude of hazards, ranging from floods and landslides in the western and southwestern regions, drought and pest outbreaks in the northern region and coastal erosion along the coastal belts. These examples underscore the growing complexity and challenges associated with managing climate risks and patterns, especially when multiple hazards occur simultaneously.

In response, Sri Lanka has implemented climate-smart agricultural interventions, including the development and introduction of stress-tolerant crop varieties, rainwater harvesting, the introduction of energy-efficient irrigation systems, implementation of soil and water conservation programs and crop diversification. However, the agricultural sector still faces formidable challenges. There is a lack of up-to-date information on climate change and its impacts, a fragmented institutional setup, overlapping mandates and limited capacity for information sharing. To address these issues, we require zone-based planning and institutional collaboration. Integrating spatial considerations into rehabilitation and development interventions is the main consensus among stakeholders. All ongoing and planned programs need vulnerability information, and there is a consensus among stakeholders on the need to integrate spatial considerations into rehabilitation and development interventions.

This is where the Atlas of Climate Adaptation in South Asian Agriculture (ACASA) project becomes an invaluable asset in expediting Sri Lanka’s journey towards climate-smart agriculture. Recent evidence highlights the need for a comprehensive assessment of location-specific climate actions to bridge knowledge gaps within the country. Through the Atlas, we will quantify localized climatic risks today and, in the future, assess their likely impacts on agriculture and identify key adaptation options to mitigate these risks. This knowledge will strengthen Sri Lanka’s food security and reduce its vulnerability to climate-related hazards. By complementing traditional methods of risk characterization with novel approaches like intensity and frequency analysis of hazards and historical crop yields, our efforts will gain added efficacy.

ACASA, therefore, offers us a unique opportunity to foster collaboration, share knowledge and develop evidence-based innovative solutions to confront the challenges posed by climate change in Sri Lanka. It serves as a platform to connect hazards, practices, tools and adaptation options. By intertwining various aspects of climate change and gaining a deeper understanding of its spatial and temporal dimensions through the Atlas, Sri Lanka is steadfast in its commitment to building resilience and creating a sustainable future for generations to come.

Piece by P. Malathy, DG-Agriculture, Sri Lanka

Atlas crucial to strengthen Nepal’s capacity to cope with climate change

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

Nepal, like other South Asian nations, faces significant environmental challenges, including climate change and air pollution. The impacts of climate change in Nepal are profound, with species moving to higher elevations, glaciers melting and an increase in extreme precipitation events. Despite only contributing a fraction of global greenhouse gas emissions, Nepal ranks fourth on the Global Climate Risk Index. This vulnerability is attributed to the country’s unique geographical features, characterized by remarkable topographical variation spanning from 60 to 8,848 meters within just 190 kilometers from North to South. In addition to economic challenges and micro-climates, Nepal is highly susceptible to the consequences of climate change, particularly in the mid-and far-western hills and mountains.

Photo: (Neil Palmer/CIAT and CCFAS)

To tackle these challenges, Nepal has taken proactive measures by implementing various adaptation strategies. Key initiatives include the National Adaptation Program of Action (NAPA), National Adaptation Plan (NAP 2021-2050), Agriculture Development Strategy (ADS-2015-2035) and the Green, Resilient, & Inclusive Development (GRID) plan. These initiatives have played vital roles in building resilience. Nepal has also launched the Climate-Smart Village program at the local level in all seven provinces, offering grassroots training on carbon and energy efficiency, biodiversity conservation and water management practices. Another notable achievement is the ‘The Himalayan Climate and Water Atlas,’ which utilizes data from five major river basins and historical climate records to project future climate hazards and extreme events.

Furthermore, Nepal developed the National Climate Change Policy (NCCP) in 2019, prioritizing eight thematic areas including agricultural and food security. The Vulnerability and Risk Assessment Report by the Ministry of Environment (2021) has also examined vulnerability and risks in eight thematic areas and one cross-cutting area for the preparation and implementation of the National Adaptation Plan. This report not only assesses the various dimensions (exposure, sensitivity, adaptive capacity, and risk) of climate change impacts across multiple sectors but also offers a range of adaptation options to address the adverse effects.

To successfully implement and translate the NCCP into action, it is crucial to identify where and how to invest. By aligning with the Atlas of Climate Adaptation in South Asian Agriculture (ACASA), Nepal reaffirms its commitment to addressing the intersection of agriculture and the environment. By leveraging the Atlas, Nepal will expedite its efforts to mitigate the impacts of climate change on agriculture, with a comprehensive understanding of various dimensions of risks and vulnerability. The Atlas will provide a detailed breakdown of risks specific to different commodities, enabling the development of effective mitigation and adaptation solutions.

By complementing ongoing efforts to manage risks and enhance adaptation strategies, the Atlas will serve as a testament to Nepal’s determination to strengthen its capacity to cope with climate change. It will make an invaluable contribution to climate change adaptation technologies, assisting government entities at all levels in formulating effective policy guidelines. By integrating research findings, indigenous knowledge, and cutting-edge technologies, the Nepal Agricultural Research Council (NARC) firmly believes that the Atlas represents another crucial step towards implementing a holistic approach to mitigate and adapt to the negative impacts of climate change on agriculture.

Piece by Dhruba Raj Bhattarai, executive director, Nepal Agricultural Research Council (NARC), Nepal

A new Climate Adaptation Atlas to safeguard South Asian agriculture

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

(Photo: Vinaynath Reddy/CCAFS)

Climate change is no longer a distant threat but a reality that profoundly affects our lives. Among the most vulnerable regions to climate change, South Asia stands out because it is home to over 100 million farmers and produces over 285 million metric tons of milled rice and 128 million metric tons of wheat (FAO 2020-21). Among 193 countries worldwide, South Asian countries rank in the top quarter for climate risk and are experiencing rising meteorological and climate-related disasters. These pose significant challenges to farmers and the 216 million people in South Asia living in extreme poverty (World Bank, 2018), further jeopardizing their food security and livelihoods.

Considering this, with support from the Bill & Melinda Gates Foundation, the Borlaug Institute for South Asia (BISA) is working with national agriculture research systems in South Asia to develop the Atlas of Climate Adaptation in South Asian Agriculture (ACASA).

The Atlas brings together spatially explicit South Asian data on the nature and evolving patterns of climate hazards. It will assess climate risks using gridded, village-scale analyses and through historical crop yield data and satellite signatures. The Atlas will consider the exposure of smallholder populations, farms and crop and livestock enterprises. It will assess the vulnerability or adaptive capacity of those populations and impacts on the region’s critical commodities. Importantly, the Atlas will provide a unique set of on-line tools and a portfolio of adaptation options to underpin better decisions regarding investments in agricultural technologies, climate information services, and policies. The project will also focus on building the capacity of concerned stakeholders such as multi-lateral agencies, government bodies, NGOs, and the private sector in the use of Atlas assets, through training materials, tutorials, and periodic workshops. This will enable informed investments and policy decisions to benefit 100 million farmers in South Asian region. For wider use, the Atlas will be embedded online as an open-source, web-enabled and interactive and dynamic tool for easy access by all concerned stakeholders.

Drawing on the expertise and experience of South Asian nations such as Bangladesh, India, Nepal, and Sri Lanka, which have suffered from extreme heat, prolonged droughts, and severe flooding in key crop-producing areas, ACASA represents an example of collaboration and knowledge exchange to reduce farmers’ risks and offer them ways to adapt.

BISA and CIMMYT are pleased to anchor this remarkable collaboration that leverages multi-disciplinary expertise and perspectives to address the complex challenges posed by climate change, linking the detailed characterization of climatic risks with mitigation technologies and policies to meet the needs of diverse stakeholders. The proposed work will contribute actively to the CIMMYT2030 Strategy where one of the 5 impact areas is centered around Climate adaptation and Mitigation. The entire strategy designs a path toward a Food and Nutrition Secure world through science and innovation in the midst of a global climate crisis.

Established in 2011 by CIMMYT and the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA) is a non-profit international organization that applies advanced technologies to improve food systems and food security, nutrition, livelihoods, and the environment in South Asia, home to more than 300 million undernourished people.

Appropriate farm scale mechanization can aid in agroecological transformation

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

A bale of grass and maize stalks made in a bailer. (Photo: CGIAR Initiative on Agroecology)

A case of the CGIAR Initiative on Agroecology in Zimbabwe

Authors: Vimbayi Chimonyo (CIMMYT – scientist, crop modeler); Frédéric Baudron (CIMMYT – cropping systems agronomist); Dorcas Matangi (CIMMYT – assistant research associate)

Food systems in marginal areas of Zimbabwe are vulnerable to climate variability and economic shocks. During the COVID-19 outbreak, governments imposed strict lockdowns that adversely affected local food systems and supply chains. Rural communities that already had difficulty feeding their families found themselves in a more desperate situation. The recurring challenges and the COVID-19 outbreak made it clear that there is a need to transform local food systems to achieve sustainable food and nutrition security. The transition is even more urgent owing to the acute labor shortages due to the accelerated trend of rural labor outmigration and an aging population in smallholder farming communities of the country. Agroecology has emerged as an approach to facilitate and champion a transformative shift to sustainable local food systems.

Mower cutting grass. (Photo: CGIAR Initiative on Agroecology)

The Agroecological Initiative is at the forefront of providing science-based evidence for the transformative nature of agroecology and its potential to bring about positive changes in food, land, and water systems, including identifying institutional innovations to promote uptake. Agroecology is a holistic approach to agriculture that emphasizes integrating ecological principles and practices into farming systems. The 13 principles of agroecology guide sustainable and regenerative agricultural practices.

 

Thirteen consolidated agroecology principles (Wezel et al. 2020)

The initiative employs a multi-disciplinary approach, integrating ecological and social methods to co-create and manage localized food systems and monitor the 13 interconnected principles. While agroecological methods hold promise, the transition process is labor and knowledge-intensive and requires addressing power dynamics within and beyond households to address food and nutrition security. Building on the findings of the completed ACIAR-funded project Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI) and Harnessing Appropriate-scale Farm Mechanization in Zimbabwe (HAFIZ), CIMMYT is working in Zimbabwe with 200+ farmers and four service providers in Murehwa and Mbire districts as ambassadors of the community through Agroecological Living Landscapes (ALLs).

Trailer for transportation. (Photo: CGIAR Initiative on Agroecology)

Mechanization plays a crucial role in the initiative implementation in Zimbabwe, covering a wide range of farming and processing equipment. The equipment ranges from simple and basic hand tools to more sophisticated and motorized tools. The machinery eases and reduces drudgery associated with agricultural practices, relieves labor shortages, improves productivity and timeliness of agricultural operations, optimizes resource utilization, enhances market access, and helps mitigate climate-related hazards.

“Machinery supports synergies, reduces labor, and reduces human and wildlife conflict as it reduces livestock grazing time because you can now make feed for your cattle and cutting grass reduces veld fires,” said Musandaire.

Within the Agroecology Initiative, CIMMYT considers mechanization in its technological, economic, social, environmental and cultural dimensions when contributing to the sustainable development of localized food systems and actors. In Mbire and Murehwa, a service provider model was adopted to introduce appropriate scale machinery within the respective communities. The service providers were equipped with a two-wheel tractor, ripper, mower, chopper grinder, and bailer. Training was offered on equipment operation, repair, and maintenance.

The business aspects were also discussed to broaden the participants’ knowledge of service provision. Important aspects covered include business model, entrepreneurship, record keeping, cost and profit calculations, customer care, target setting, and machinery operation planning.

To date, the service providers offer services including ripping, transportation, chopper grinding for livestock feeds and humans, and baling and mower for grass cutting at a fee.

“Mechanization has proven efficient and relevant in our district since livestock is one of our main value chains. Our service providers make hay bales for us, which we buy to feed our livestock. They also grind feed which is good for pen-fattening,” said Chimukoro, councilor in Mbire.

Preliminary findings indicate that appropriate scale mechanization enhances synergies in smallholder farming systems by facilitating more efficient and integrated agricultural practices.

“Our trailer reduces labor and saves time better than scotch carts. We used to leave much biomass in the fields because we didn’t know how to transport and process it after aggregation. But now we can recycle our biomass,” mentioned Mushaninga, local leadership in Murehwa.

By streamlining labor-intensive tasks and promoting holistic farm management, mechanization encourages complementarity among various elements of agroecosystems, contributing to more sustainable and productive smallholder farming. Target communities can pave the way for a more resilient and sustainable food system through the Agroecological Initiative.

Government of Nepal adopts new fertilizer recommendations

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

Balancing the application of fertilizers based on the characteristics of soil leads to increased crop productivity, income, and fertilizer use efficiency unlike former “one size fits all” recommendations, said Bedu Ram Bhushal, Nepal’s Minister of Agriculture and Livestock Development (MoALD) during a press briefing earlier this month in Nepal’s capital Kathmandu.

Participants from the press release (Photo: Deepa Woli/CIMMYT)

The site-specific recommendations applicable to maize, wheat, and rice were jointly launched with the Nepal Agricultural Research Council (NARC) and National Soil Science Research Center (NSSRC). They were implemented in collaboration with the Department of Agriculture (DoA) and led by the Nepal Seed and Fertilizer (NSAF) Project at the International Maize and Wheat Improvement Center (CIMMYT).

“I congratulate NARC for this historical work on updating the fertilizer recommendations after 46 years,” Bhushal said. “Now, we should support the large-scale adoption of these new recommendations by farmers for sustainable soil fertility management.”

Earlier recommendations developed by the Agricultural Chemistry and Soil Science Service Section under the Department of Agriculture (DoA) in 1976 did not take into account soil diversity, biophysical conditions, and agronomic management. Nutrients recommended for a particular crop were the same for terai lowlands, hills, and mountains.

In general, soil fertility changes over time due to deployment of continuous intensive cropping systems. The new recommendations consider the indigenous nutrient supply of soils, target yields, and the amount of nutrients removed by crops at harvest.

Senior officials and dignitaries endorsed new fertilizer recommendation (Photo: Deepa Woli/CIMMYT)

It took six years for NSSRC of NARC in partnership with NSAF, to update the recommendations through nutrient omission and optimum nutrient rate trials in various locations. By using advanced analytical methods and machine learning tools for extrapolating data across different agroecological zones and domains, they were able to make them site-specific.

Other factors considered, included attainable yield at a particular farm, soil fertility status, agro-climate, crop management practices, and the amount of nutrients to be supplied to fill the gap between crop nutrient removal and soil nutrient supply of nitrogen, phosphorus, and potassium. Micronutrients and organic inputs were also considered.

These recommendations were presented to leading soil scientists and agronomists from NARC and MoALD and were validated at national meetings in July and October 2022.

The Honorable Minister of MoALD, Bedu Ram Bhusal reviewed the press release (Photo: Deepa Woli/CIMMYT)

The new recommendations were included in the DoA’s agriculture extension guidelines in 2023, to achieve potential yield at the farm level and to link with the extension system through the three-tier of governments for its extensive use throughout the country. The new approach is part of CIMMYT’s efforts to support the NARC, MoALD, provincial agriculture ministries, and farmers to build indigenous soil fertility management resources and capabilities and promote locally adapted strategies for long-term resilience by using integrated soil fertility management approaches.

Unveiling the potential of sorghum to shape sustainable agriculture

Written by mcallejas on . Posted in News.

Scientists, researchers and stakeholders from around the world gathered at the global sorghum conference from June 5-9, 2023, in Montpellier, France, to discuss the latest developments in sorghum research, innovation, challenges and sustainable practices in the face of climate change.

The Dryland Crops Program (DCP) partners pose for a group photo at the Sorghum Conference (Photo: Marion Aluoch/CIMMYT)

Participating as a sponsor, the International Maize and Wheat Improvement Center (CIMMYT) demonstrated valuable insights and technological advances in a variety of sessions. Two CIMMYT representatives and six National Agricultural Research Extension Systems (NARES) partners, presented findings, addressing critical topics such as adaptation genetics and genomics, climate and environmental change, sorghum yield optimization techniques and the development of new sorghum products for human consumption.

CIMMYT has initiated a crop improvement program, known as the Dryland Crop Program (DCP), focused on sorghum, millets (pearl and finger millet), chickpea, pigeon pea and groundnut. The program is in the process of establishing a CGIAR-NARES network with stakeholders form 17 countries in Africa to collaboratively create, develop and implement a crop improvement network for these crops in Eastern, Southern, Western and Central Africa. This cooperative approach will enable CIMMYT and the network to identify suitable products for specific market segments, establish joint breeding pipelines, conduct on-farm germplasm testing and ultimately release and scale up superior seed varieties. This will ultimately lead to improving the quality and yield of these dryland crops, ensuring food security and promoting sustainable agricultural practices.

Nebie Baloue from CIMMYT Senegal providing information about the Dryland Crops Program (DCP) program to visitors at the CIMMYT’s booth (Photo: Marion Aluoch/CIMMYT)

Abhishek Rathore presented “Understanding sorghum race level diversity and development of sorghum genomic resources by using deep learning-based variant calling approach,” which examines sorghum’s racial diversity and the creation of genomic resources. Using a deep learning-based variant, researchers identified race-specific genetic signatures and gained a comprehensive understanding of sorghum race structure and domestication processes. These discoveries pave the way for more targeted breeding programs and the identification of single nucleotide polymorphism (SNPs) markers.

Baloua Nebie presented a poster on “Crop improvement network approach to co-develop market required products and strengthen partners’ capacities in Africa.” He indicated the dryland crops improvement programs are in collaboration with CGIAR-NARES programs, with CIMMYT acting as a facilitator within the network to deliver varieties more quickly and efficiently in response to market demand. The network is comprised of 10 NARES in Western and Central Africa, seven NARES in Eastern and Southern Africa, as well as farmer organizations and seed companies. In addition to their national roles, NARES partners will contribute to regional activities based on their comparative advantages; these roles include co-sharing of regional pipelines development, early to late testing of breeding lines, product release and scaling. Through consultative meetings and program evaluation, these activities will be aligned with the regional and country-specific market segments identified by stakeholders.

Alex Zongo of the Institut de l’Environnement et des Recherches Agricoles (INERA) / CNRST – Burkina Faso, a NARES partner, presented research analyzing the macro-institutional determinants of the adoption of new sorghum/millet varieties. He shed light on the obstacles associated with the adoption of new sorghum/millet varieties. The research uncovered the economic and social incentives that prevent their scaling through a combination of qualitative and quantitative analysis.

Mr. Jeffrey Ehlers Program Officer at the Bill & Melinda Gates Foundation engages in conversation with Nebie Baloua from CIMMYT Senegal at the CIMMYT’s booth (Photo: Marion Aluoch/CIMMYT)

With climate change posing a significant threat to global agriculture, NARES partners involved in regional networks have delved into the pressing issues of enhancing sorghum production’s climate resilience. Rekiya Abdoulmalik, from the Institute of Agriculture Research (IAR) in Nigeria, presented a poster on the threats to sorghum cultivation in Nigeria posed by current security issues and potential climate change effects. The study evaluated 14 varieties of dwarf sorghum in multiple locations. The analysis identified stable, high-yielding varieties with the potential to contribute to Nigeria’s food security in the face of shifting environmental conditions.

Other NARES partners presenting posters included Henry Nzioka from Kenya Agricultural and Livestock Research (KALRO), who made a case for the biological control of the striga weed in sorghum. Citing technological advancements, he illustrated how the integration of climate-smart weed management technologies can lead to the control of the weed.

Another presentation by Charles Bett of KALRO focused on mechanization in the sorghum value chain, which revealed that investments in machinery and traction power have a positive and significant effect on sorghum yield. The findings recommend a shift in policy to help farmers afford small-scale machinery and gradually replace ox power with affordable machinery.

Baba Haoua, from INRAN, Niger, highlighted that introducing specific genes into sorghum varieties through conventional breeding will increase their nutritional content and identify promising lines for local farmers, providing a sustainable solution for improving sorghum for both grain and livestock feed applications.

Assitan Daou from the Institut d’Economie Rurale (IER) in Mali emphasized the suitability of sorghum as a crop for growing populations in varying climates and the significance of an agroecological transition for adaptation to climate change. His poster presentation centered on sorghum cropping systems under rainfed conditions, which aligned with the conference’s goals of increasing crop productivity, adapting to climate variations and bolstering the resilience of small-scale farmers.

The conference, according to Chris Ojiewo, Strategic Partnerships and Seed Systems lead for the Dryland Crops Program at CIMMYT, played a crucial role in sharing the latest sorghum research findings and their outcomes. “The conference provided an important platform for communicating advances in research and associated outputs and outcomes on sorghum as an important cereal grain contributing to food, nutrition and income securities and overall resilience in agrifood systems especially to smallholder farmers in areas prone to drought stress and more so in the face of changing and variable climates,” said Ojiewo.

Nebie Baloua from CIMMYT Senegal engaging with visitors at the CIMMYT’s stand (Photo: Marion Aluoch/CIMMYT)

CIMMYT also set up an exhibition booth that provided an overview of the various activities undertaken as a part of its dryland crop programs and CGIAR-NARES improvement network. Senior officials of donor organizations consulted CIMMYT staff regarding approaches to dryland crops improvements, key achievements and the possibility of new partnerships.

The next 21st Century Global Sorghum Conference will be hosted by Texas University in Lubbock in September 2026.

Regenerative Agriculture Boosts Second Green Revolution

Written by mcallejas on . Posted in In the media.

CIMMYT leds different regenerative agriculture projects with companies like Nestlé and Bimbo that positively impact food security and rural communities in Mexico. These initiatives aim to boost productivity through regenerative agriculture practices to positively impact food security, the environment and social inclusion in the Mexican countryside.

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Scientists urge shifting more nitrogen to low-input farms and better use on high-yield farms

Written by Mike Listman on . Posted in Publications.

Integrated management of organic and inorganic nitrogen sources in high- to low-yield cereal production could bring yearly savings in nitrogen fertilizer of over 1 million tons in India, some 90,000 tons in Ethiopia, and more than 20,000 tons in Malawi, according to a new scientific paper, “Spatially differentiated nitrogen supply is key in a global food-fertilizer price crisis.”

“Global policies and governments should prioritize nitrogen supplies to low-yield, low-fertility cropping systems, such as smallholder maize and rice farms in Malawi, which are representative of the highly N-deficient cereal systems relied upon by over 100 million people in sub-Saharan Africa,” said Sieglinde Snapp, director of the Sustainable Agrifood Systems Program at the International Maize and Wheat Improvement Center (CIMMYT) and first author of the paper. “Those farmers should also ramp up organic nitrogen inputs, such as manure and legume crops.”

In the intensive, high-yield cropping systems of India, farmers generally over-apply N fertilizer on 90% of the rice and wheat crops and more than half of maize crops. Less than half the nitrogen is taken up and used by the crops and the rest is lost into the environment, contaminating water, land, and the atmosphere. “Simply saving the excess fertilizer from over-fertilized areas and shifting it to low-application areas could increase global crop yields by 30%, with huge reductions in greenhouse gas emissions,” said Tek Sapkota, co-author of the paper and climate change leader at CIMMYT.

This study is based on evidence of achievable shifts in nitrogen management over 1-2 years, for a modest proportion of cropped area (10%). “We did not assess interventions with longer time horizons or large investment requirements such as precision agriculture, mechanization, or deep placement of fertilizer,” Snapp explained.

Snapp and her colleagues used evidence from the scientific literature to estimate N-fertilizer savings from the above interventions for maize, wheat, and rice cropping systems in India, Ethiopia, and Malawi. Integrated organic and inorganic nitrogen management was estimated by considering manure and legume N inputs along with N fertilizers. The effect of reallocating public subsidies to more cost-effective, high-N fertilizer was calculated as the extra nitrogen that could be made available through a lower unit cost of nitrogen.

Food production vs healthy environment?

According to Snapp, humanity is caught in a bind. Food crops grown using synthetic nitrogen fertilizer have fed expanding world populations since the 1960s, fertilizer use has increased nearly 10-fold since then, and significantly higher food demands lie ahead to mid-century. At the same time, poor use of N fertilizer is hurting the environment and, most recently, geopolitical conflicts have disrupted N fertilizer supplies and exposed the vulnerabilities of the global fuel-fertilizer-food nexus.

“In regions where cropping systems are highly deficient in nitrogen, investment is needed in policies and extension education to promote the use of organic nitrogen residues and legume crops,” Snapp said.

Extension agencies, she suggests, can extend their reach using digital tools and bi-directional communication approaches that engage local knowledge and farmers, including advisories regarding local soils and crop and fertilization requirements.

Milestones achieved in rust research

Written by Julian Bañuelos-Uribe on . Posted in In the media.

The ambitious fourth phase of the Australian Cereal Rust Control Program (ACRCP) is complete and it has produced an impressive set of achievements. Phase 4 saw an emphasis on gene discovery work and on understanding the interactions between rusts and their cereal hosts. It also included a strong focus on adult plant resistance (APR) genes and their potential to deliver more-durable forms of resistance.

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CIMMYT at the Group of 20

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

The G20 MACS is composed of the ministries or governmental bodies responsible for agricultural research in each G20 state and leading research institutions, including CIMMYT as part of CGIAR, which strategically advise these decision makers. The G20 MACS addresses diverse global challenges in agriculture affecting the people and planet through joint agricultural research and innovation strategies and implementation of initiatives under new cooperation formats.

“CIMMYT is working for a world with resilient agri-food systems and protecting biodiversity with a multi-crop, multi-institutional, and multi-disciplinary approach,” said Govaerts during the recent MACS meeting. “70% of wheat and over 50% of maize varieties sown worldwide are derived from CIMMYT materials, and we are improving livelihoods in over 50 countries.”

Wheat and maize plots at the CIMMYT experimental station in El Batán, Mexico. (Photo: Alfonso Cortés/CIMMYT)

In its efforts to ensure biodiversity, CGIAR genebanks hold over 770,000 accessions, of which 80% are immediately accessible. As an added measure of security, duplicates of 78% of the seeds reside at the Svalbard Global Seed Vault.

Because wheat provides 20% of the global population’s daily protein intake, protecting it from disease, pests, and the effects of climate change is paramount. And to keep pace with the growing population, yields must increase in sustainable manners. To meet those challenges, CIMMYT coordinates the International Wheat Improvement Network, which involves hundreds of partners and testing sites worldwide. The Network has established a global phenotyping network, with platforms hosted locally so that environments are optimal for specific trait phenotyping.

Battling pests

In efforts to combat the threat of wheat blast, CIMMYT has established a regional collaboration which includes testing centers (over 15,000 lines tested), surveillance networks, and the release of blast resistant varieties in India, Nepal, and Bangladesh. In addition, CIMMYT has trained 100 extension agents from 10 countries in wheat blast identification and surveillance protocols.

Examining Ug99 stem rust symptoms on wheat. (Photo: Petr Kosina/CIMMYT)

Fall armyworm, is a voracious pest in both Africa and Asia, has caused up to $13 billion per year in crop losses in sub-Saharan Africa since 2016, threatening the livelihoods of millions of farmers throughout the region. CIMMYT has developed hybrid maize varieties resistant to this pest by identifying and validating sources of native genetic resistance.

International Year of the Millet: 2023

Within its presence in CGIAR, CIMMYT is working in networks with African NARS and private sector partners to share resources and knowledge and innovating sustainable crop and crop-livestock systems. This will directly support the Millets And Other Ancient Grains International Research Initiative (MAHARISHI), inaugurated at the G20 MACS conference. The initiative facilitates research collaboration on climate-resilient and nutritious grains, including millets and other underutilized grains. CIMMYT is also initiating and supporting crop improvement programs for sorghum, millet, groundnut, pigeon pea, and chickpea, in a model that empowers the national research centers.

Malawian farmer in her groundnut plot under conservation agriculture. (Photo: T. Samson/CIMMYT)

This work dovetails with the recently announced Accelerated Innovation Delivery Initiative (AID-I), in which CIMMYT is catalyzing efforts to scale up existing and high potential innovations, technologies, and business models as opposed to starting new ones in Malawi, Tanzania, and Zambia.

Creating sustainable solutions

CIMMYT is also pioneering the development of a hub network which supports adaptive research and integrated development for sustainable agrifood systems. With particular attention paid to inclusivity, these hubs are changing the perception of women’s roles in agriculture.

“CIMMYT is building towards future-proof solutions that foster empowerment through raising family income and food security, working with partners in the Global South for the benefit of the Global South,” said Govaerts.