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.
The widespread availability of chemical nitrogen fertilizers is a prime driver of the vast improvement of crop yields over the past 50 years. However, their use has come with a price, as nitrogen escaping into surrounding soil and air has negative impacts on the environment and human health, including water pollution, depletion of soil-fertility, and greenhouse gas emissions.
Researchers from CIMMYT and JIRCAS (Japan International Research Center for Agricultural Science) examined ways to curtail the leakage of nitrogen into ecosystems, through a process called biological nitrification inhibition (BNI) in the paper âGenetic variation among elite inbred lines suggests potential to breed for BNI-capacity in maize,â published in the journal Scientific Reports on August 17, 2023.
BNI is a plant-based natural process that reduces nitrogen losses, which can reduce fertilizer demand while sustaining agricultural systems. The roots of plants that exhibit BNI activity release natural substances that inhibit the activity of nitrifying bacteria in soil, thus reducing the amount of nitrogen lost to the surrounding ecosystem. Many plant species have natural BNI activity in their roots.
Although synthetic chemical nitrification inhibitors are commercially available to reduce nitrogen losses, the high costs of this approach have limited its adoption. By contrast, breeding new varieties with increased natural BNI activity can offer a practical and economical approach to reduce nitrogen fertilizer need and waste.
âWe are in the discovery phase regarding BNI activity and its determining traits for maize. Such information is crucial to pave the way for breeding programs and genetic improvement efforts,â said Kevin Pixley, co-author of the paper and former director of CIMMYTâs Genetic Resources Program. âWe need to identify genetic markers for BNI compounds including âzeanoneâ, which will enable breeders to develop maize varieties that require and waste less nitrogen fertilizer, while achieving high yields.â
Doubles haploids prepared for evaluation and further analysis at CIMMYT’s headquarters, El BatĂĄn, Mexico. (Photo: Araceli Balderas)
This research identified 18 single nucleotide polymorphisms (SNP) that act as genetic âsignpostsâ for breeders to use to accelerate and increase the accuracy of breeding to increase BNI activity for maize. The researchers also identified six âcandidateâ or putative genes associated with BNI activity and related to nitrogen use efficiency, thereby enhancing the understanding of the genetics controlling BNI activity.
âOur identification of SNPs and genes that regulate how maize processes nitrogen begins to draw a road map to guide the development of molecular markers for use in breeding new maize varieties that meet farmer and consumer needs at a lower environmental cost,â said senior author Cesar Petroli. âBuilding on the results obtained and reported in our recent publication, we are developing maize (doubled haploid) populations to refine the genetic map for BNI activity in maizeâ.
This research was conducted with partners from JIRCAS and the Universidad de la RepĂșblica, Uruguay.
The Livestock Production Systems in Zimbabwe (LIPS-Zim) project implemented by CIMMYT and various research institutions in partnership with the government expects to increase incomes and ensure food security for more than 50,000 rural Zimbabweans.
Latin America is a particularly rich source of neglected crops, which have been replaced by a small number of modern varieties that have come to dominate global commodity markets. However, CIMMYT has utilized various methodologies and developed new initiatives to highlight the value of neglected crops and create market opportunities for smallholders.
What are the crucial practices, to help enhance the contribution to local communities and the preservation of their cultural heritage?
The inaugural Rwanda National Seed Congress, which took place in Kigali on July 31 and August 1, 2023, marked a significant milestone for the country’s seed industry. Themed âPrivate Sector Strategic Roadmap for the Seed Industry 2030â, the event brought together key stakeholders from the government, public, and private sectors to address challenges and opportunities in the national seed value chain.
Discussions centered around pertinent issues concerning the seed sector in general, with a particular focus on the Rwandan National Seed Strategic Roadmap. This document, which was developed through consultations with various stakeholders, provides a comprehensive plan to steer the industry towards success and sustainable growth.
âEnhancing and managing the seed system is a complex endeavor that requires the collaboration of various stakeholders,â said Chris Ojiewo, CGIAR Seed Equal Initiative lead. âThis is where public-private partnerships come in as a valuable tool for nurturing the growth and expansion of the seed industry.â
Chris Ojiewo, CGIAR Seed Equal Initiative lead, presented at the inaugural National Seed Congress in Rwanda. (Photo: NSAR Congress)
During a presentation entitled Public-private Partnership: A Tool for Development and Strengthening of the Seed Sector, Ojiewo highlighted the growing importance of collaboration and partnerships in the current seed system. He emphasized that the processes and elements that shape the seed sector are complex and extensive, making it too much for any one organizationâwhether public or privateâto handle alone.
The way forward
During the congress, several key recommendations were proposed  to increase the potential of the seed industry. The government was encouraged to seek accreditation with major seed industry quality organizations, such as the International Seed Testing Association (ISTA) and Organization for Economic Co-operation and Development (OECD) certification schemes, while adopting International Union for the Protection of New Varieties of Plants (UPOV) to establish an improved regulatory environment conducive to industry growth.
The empowerment of the National Seed Association of Rwanda (NSAR) as an advocate and facilitator for the seed industry was also highlighted as an essential measure. The government’s support in enabling the seed association to become increasingly self-regulatory is seen as crucial to the industry’s growth over the next seven years, with private seed industry players developing internal systems to ensure compliance with rules and regulations.
Another key recommendation for increasing sustainable improved seed use in Rwanda was the use of Public-Private Partnerships (PPPs), which will play a critical role in promoting the country as a seed production and trade investment destination.
Ojiewo emphasized the importance of such partnerships, noting that âPPPs have the potential to transform the seed industry by leveraging the strengths of different organizations.â He further highlighted that in addressing the challenges of global food security and sustainable development, the way forward becomes clear through collaboration, innovation, and a shared commitment to advancing agricultural progress through collaborative efforts.
The congress also focused on attracting affordable financing to scale up investments throughout the seed value chain. It was considered essential to involve industry financial players in the development of optimal financing structures to support the expansion of the industry.
As a result of the successful event, plans have already been made for the second National Seed Congress in 2024. Scheduled to take place in Kigali on July 29 and 30, 2024, the next event aims to build on the achievements of the first congress and further drive the growth of Rwanda’s seed industry.
CGIARâs Seed Equal Initiative helps farmers by providing them with better seeds that are nutritious, preferred in the market, and that can withstand climate change. These varieties have been carefully developed to exhibit significant genetic advancements, ultimately benefiting farmers. It also makes sure that women and other marginalized groups have fair access to these seeds.
Scientists from CIMMYT, founded in Mexico in 1966, have pursued decades of participatory research with Mexicoâs smallholder maize farmers to improve their local varieties for traits like yield and insect resistance, while preserving their special grain quality, as well as testing and promoting zero-tillage and other resource-conserving farming practices.
Smallholder farm operations account for more than 80% of all farms worldwide and produce roughly 35% of the worldâs food, according to FAO census data and follow-up studies.
An estimated two-thirds of the Mexicoâs farmers are smallholders, typically working challenging agroecologies scattered across the countryâs mountainous terrain and applying generations-old subsistence practices to grow low-yielding local maize varieties.
Ancient milpa multicropping systems can lift up the present and future
The milpa intercrop â in which maize is grown together with beans, squash, or other vegetable crops â has a millennial history in the Americas and can furnish a vital supply of food and nutrients for marginalized, resource-poor communities.
One hectare of a milpa comprising maize, common beans, and potatoes can provide the annual carbohydrate needs of more than 13 adults, enough protein for nearly 10 adults, and adequate supplies of many vitamins and minerals, according to a CIMMYT-led study in the western highlands of Guatemala, an isolated and impoverished region, reported in Nature Scientific Reports in 2021.
But milpas are typically grown on much smaller areas than a hectare, so households cannot depend on this intercrop alone to satisfy their needs. A solution? Customized milpas that merge farmersâ age-old wisdom and practices with science-based innovation.
An example is planting fruit trees â guava, avocado, mango, peaches, or lime among others â among milpa crops in lines perpendicular to hill slopes. The practice was tested and promoted in the Los Tuxtlas region of the state of Veracruz by Mexicoâs National Institute of Forestry, Agriculture, and Livestock Research (INIFAP) and the Colegio de Postgraduados (ColPos) and has been refined by farmers in other areas through CIMMYT-led innovation networks.
Planted milpa crops in lines perpendicular to the slope on a steep hillside in Chiapas, Mexico. (Photo: Peter Lowe/CIMMYT)
In Los Tuxtlas the practice provided added income and nutrition, dramatically reduced erosion, improved land and water-use efficiency by around 50%, and boosted soil health and fertility.
In the state of Puebla and other parts of South and southwestern Mexico, milpa-fruit tree intercrops have worked well on steep hillsides. In the state of Oaxaca, for example, versions of the practice have notably improved farming by indigenous communities in the Mixe and Mazateca regions, supported by outreach of the Mexican Agency for the Sustainable Development of Hillsides (AMDSL), a partner in a CIMMYT research hub in the region.
Research by AMDSL and CIMMYT on smallholder plots in two Oaxaca municipalities where farmers have been combining milpas with peach and avocado production and conservation agriculture practices for more than a decade found that cropping diversification, together with use of zero tillage and keeping crop residues on the soil rather than removing or burning them, raised total yearly crop outputs by as much as 1.7 tons per hectare and reduced farmersâ risk of catastrophic crop losses due to droughts or other climate extremes.
Blue maize pleases diners and delivers profits
Farmersâ local maize varieties yield less than hybrids but are still grown because they provide ideal grain quality for traditional foods, as well as marketable stalks and leaves to feed farm animals and maize husks for wrapping tamales, to name a few products.
Building on longstanding partnerships with INIFAP and the Autonomous University of Chapingo (UACh) to improve local varieties and preserve maize genetic diversity in Mexico, CIMMYT breeders have recently developed improved blue maize hybrids and open-pollinated varieties.
Sought by restauranteurs worldwide for its flavor and beauty, blue maize grain normally comes from native varieties grown by smallholder farmers on small plots with low yields and variable quality.
The new CIMMYT varieties are derived from traditional Guatemalan, Mexican, and Peruvian landraces and feature higher yields, more consistent grain quality, and enhanced resistance to common maize diseases, offering smallholders and other Mexican farmers a profitable product for the countryâs booming restaurant industry and for export chains.
Selection of corn varieties for the state of Morelos, Mexico. (Photo: ACCIMMYT)
Parental inbred lines of the new hybrids have been distributed to private and public partners, who are developing their own hybrids and OPVs in Mexico. CIMMYT continues to test the new hybrids under various farming systems to ensure they produce stable yields when grown in farmersâ fields.
Data driven extension
Using cutting-edge data systems, CIMMYT has leveraged information from nearly 200,000 plots representing more than 26,000 hectares across diverse agroecologies to offer Mexican farmers â including smallholders â site-specific recommendations that make their farming systems more productive, resilient, and sustainable. The initiative was supported by MasAgro, an integrated development partnership of Mexico and CIMMYT during 2010-21 and funded by Mexicoâs Secretariat of Agriculture and Rural Development (SADER).
The importance of agroecological methods is starting to be a necessity across the Congo Basin. CIMMYT researcher, Prasanna Boddupalli, emphasises the importance of agroecological methods for biodiversity-smart agricultural development.
Small-scale farmers in Mexico often adopt conservation agriculture innovations gradually and piecemeal, to fit their diverse agroecological and socioeconomic contexts and risk appetites, according to studies and the on-farm experience of CIMMYT.
Research and extension efforts need to consider this in work with smallholders, said Santiago Lopez-Ridaura, a CIMMYT specialist in agricultural systems and climate change adaptation.
“Farmer practices typically involve heavy tillage before seeding, growing maize as a monocrop, and removing crop residues after harvest for use as forage,â explained Lopez-Ridaura. âFull-on conservation agriculture (CA) is a radical shift, requiring farmers to reduce or eliminate tillage, keep a permanent cover of crop residues on the soil, and diversify the crops they grow. It can support more intense yet environmentally friendly farming, reducing erosion, improving soil fertility and water filtration, boosting crop yields, and saving farmers money. However, it also requires purchasing or contracting specialized sowing implements and fencing fields or agreeing with neighbors to keep livestock from eating all the residues, to name just a few changes.â
Conserving crop residues favors production systems and provides various benefits. (Photo: Simon Fonteyne/CIMMYT)
Lopez-Ridaura and colleagues published a 2021 analysis involving farmers who grew maize and sorghum and keep a few livestock on small landholdings (less than 4 hectares), with limited mechanization and irrigation, in the state of Guanajuato, Central Mexico.
They found that scenarios involving hybrid maize plus a legume crop with zero-tillage or keeping a residue mulch on the soil provided an average net profit of some US $1,600 (MXP 29,000) per year, in addition to ecological benefits, added forage, and more stable output under climate stress.
âUsing a modeling framework from Australiaâs Commonwealth Scientific and Industrial Research Organization (CSIRO) that combines bioeconomic simulation, risk analysis, adoption theory, and impact assessment, we not only confirmed the worth of conservation agriculture but found that disaggregating CA into smaller component packages and including a more productive crop and variety were likely to increase farmersâ adoption, in riskier settings.â
Advancing more sustainable farming in Mexico
Conservation agriculture can generate substantial economic and environmental benefits under marginal conditions, particularly by enhancing climate change resilience, increasing soil organic matter, and retaining soil moisture. In Central Mexico dryland maize yields rose by 38-48%, after 10 years of implementing CA.
CIMMYT’s multi-crop, multi-use zero tillage seeder at work on a long-term conservation agriculture (CA) trial plot, left, at the center’s headquarters at El BatĂĄn, Mexico. (Photo credit: CIMMYT)
CIMMYT has studied and promoted zero-tillage for maize and other resource-conserving practices in Mexico for more than three decades, but efforts to spread sustainable farming and use of improved maize and wheat varieties redoubled thanks to MasAgro, a research initiative led by the Center and supported by the government of Mexico during 2010-21. Testimonials such abound of Mexican smallholder farmers who have adopted and benefited from CA practices through CIMMYT and national partners’ efforts in MasAgro and other initiatives.
Looking to lower his farm costs without losing output, wheat and oil crop farmer Alfonso Romo of Valle de Mayo, state of Sonora, began practicing CA in 2010. âWe’ve learned a lot and this year (2022) we obtained the same yields as we used to get through conventional practices but, following more sustainable farming methods, with a 30 and even 40% savings in fertilizer.”
With CA practices he adopted in 2018 through MasAgro, maize farmer Rafael Jacobo of Salvatierra, state of Guanajuato, obtained a good crop despite the late dispersal of irrigation water. Seeing his success and that of other nearby farmers, neighbor Jorge Luis Rosillo began using CA techniques and has noticed yearly improvements in his soil and yields. “I did everything the technicians recommended: keeping the residues on the soil and renewing only the sowing line on soil bedsâŠ. There are lots of advantages but above all the (cost) savings in land preparation.”
The Milpa Sustentable project in the Yucatan Peninsula is recognized by the UN as a world example of sustainable development. (Photo: CIMMYT)
Farmers in the Milpa Sustentable project in the YucatĂĄn Peninsula have improved maize yields using locally adapted CA methods, in collaboration with the Autonomous University of YucatĂĄn. Former project participant Viridiana Sei said she particularly liked the respectful knowledge sharing between farmers and project technicians.
CA practices have allowed more than 320 women farmers in the Mixteca Region of the state of Oaxaca to provide more and better forage for the farm animals they depend on, despite drought conditions, through the Crop and Livestock Conservation Agriculture (CLCA) project supported by the International Fund for Agricultural Development (IFAD). According to farmer MarĂa MartĂnez Cruz, “… it hasn’t rained much and everything’s dry, but our verdant oat crop is allowing us to keep our farm animals fed.”
With CLCA support and facing Mexico’s increasingly fickle rainy season, farmer Mario GuzmĂĄn Manuel of San Francisco ChindĂșa village in Oaxaca began using CA and says he’ll never go back to the old practices. “We used to do as many as two harrow plowings to break up the soil, but if we leave the residues from the previous crop, they hold in the soil moisture more effectively. People hang onto the old ways, preferring to burn crop residues, but we should understand that this practice only deprives the soil of its capacity to produce.”
Written by mcallejas on . Posted in Uncategorized.
Anurag Kumar is a senior research associate in CIMMYT under the Cereal System Initiative for South Asia (CSISA) project in India.
He is involved in Coordinating trials and demonstrations of the rice-wheat cropping system in Bihar. Other than coordinating trials and demonstrations, he is effectively strengthening partnerships with national and private partners. The extension of proven technologies is the core of the project so synergizing the effort of each partner for better spread.
Leveraging the leadership, science, and partnerships of the Mexico-based CIMMYT and the funding and research capacity of Mexicoâs Secretariat of Agriculture and Rural Development (SADER) during 2010-21, the program known as âMasAgroâ 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.
As a result of MasAgro research hubs operating across Mexicoâs multiple and diverse agroecologies to promote the sustainable intensification of maize and wheat farming systems â including improved varieties and resource-conserving, climate-smart practices â 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 worldâs largest-ever samplings of maize and wheat genetic diversity, including CIMMYTâs 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 projectâs 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 BajĂo region, one of Mexicoâs most productive farm areas but which also suffers from soil degradation, water scarcity, and climate change effects â 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, Kelloggâs, 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 MasAgroâs 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 ComitĂĄn, 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.
âCIMMYTâs 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,â said Govaerts.
The 2021 Global Agricultural Productivity (GAP) report âStrengthening the Climate for Sustainable Agricultural Growthâ endorsed IASI, saying it ââŠis designed to generate strategies, actions and quantitative, Sustainable-Development-Goals-aligned targets that have a significant likelihood of supportive public and private investment.â
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 breedingÂ
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.
âThe 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. Itâs also an important reminder to assess our strong points and where more investment and collaboration is needed,â said Bram Govaerts, CIMMYT director general.
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.
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
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 regionâs 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.
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.
âMachinery 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 participantsâ 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.
âMechanization 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,â 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.
âOur trailer reduces labor and saves time better than scotch carts. We used to leave much biomass in the fields because we didnât 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.
