In the male-dominated realm of agricultural machinery services, Sonia Jannat, a 28-year-old from Jhenaidah, Bangladesh, has inscribed her name as a successful Machinery Solution Provider (MSP). Her determinationâand the transformative power of new technologiesâhas launched her on an extraordinary journey of empowerment and financial independence.
Growing up in a farming household, Sonia was already familiar with cultivation. Rooted in agriculture, she harbored a longstanding ambition to make a meaningful impact in this field. To realize her vision, she consistently stayed abreast of the latest technologies and machinery designed to boost production while minimizing labor and time. However, life took an unexpected turn when her father fell ill with heart disease, forcing Sonia to shoulder the responsibility of financially supporting her family while pursuing her honors degree. This phase of hardship proved to be a turning point in her life.
Sonia Jannat operates one of her combine harvesters in Jhenaidah, Bangladesh. (Photo: CIMMYT)
During this challenging period, Sonia came across a YouTube video showcasing a combine harvesterâa cutting-edge machine that could revolutionize harvesting. She immediately recognized its potential to transform farming practices and offer a reliable income stream. The first major hurdle was overcoming her family’s financial constraints and convincing them to invest in a machine without any tangible proof of its benefits.
In October 2020, Sonia and her family attended a live demonstration organized by the private sector, where she successfully persuaded her father to invest in a combine harvester. With the support of a machinery subsidy, she selected the best model suited to her business needs.
Sonia took part in business expansion meetings, built linkages with spare parts shop owners, dealers, and commission agents, and received operational and maintenance trainingâfor both herself and her machine operators.
In the first season of 2021, Sonia’s combine harvester generated an impressive income of approximately US$10,000 (excluding operational and labor costs). This early success fueled her ambition, and with her family’s support, she invested in a second combine harvester, expanding the business.
Today, Sonia Jannat proudly owns three combine harvesters, generating an annual income of BDT 30 lakh (approximately US$33,000). Her customer base has grown to span around ten geographical divisions across Bangladesh. Soniaâs achievements have not only reshaped her own financial future but have also broken deep-rooted societal stereotypes. Once ridiculed for her unconventional path as an unmarried woman, she now commands respect and admiration from the very community that once doubted her.
Sonia shares with pride:
âThe same society that once criticized me with comments like, âWhy is an unmarried girl traveling around to earn money? Why is she breaking social norms?â is now praising me. After witnessing my talent, social contributions, and support for my family, they now see me as one in a thousand girls!â
With academic credentials that include honors and a masterâs degree in Bangla, Soniaâs aspirations continue to grow. She now envisions launching a new entrepreneurial venture offering a wider range of agricultural machinery services. She is committed to empowering women by actively engaging them in her business modelâaiming to be an inspirational entrepreneur for many others.
Agriculture lies at the core of rural livelihoods, yet longstanding social inequities havestifled the potential of marginalized groups– particularly women and youth– to fully benefit. The CGIAR Agroecology Initiative (AE-I) recognizes gender and social inclusion as critical pillars in achieving sustainable agricultural transformation. By embedding these aspects within its framework, AE-I ensures that marginalized groupsâespecially women and youthâplay a meaningful role in agroecology transitions. Â
Current realities on women and youth in agriculture
Women and youth are central to Zimbabwe’s agricultural economy, yet they remain underrepresented or excluded in decision-making processes and face barriers to accessing  critical resources. Globally, women make up about 48% of the agricultural labor force in Sub-Saharan Africa (World Bank, 2024), yet they consistently face challenges in accessing land, credit, and markets. In Zimbabwe, these disparities are even more pronounced. In Mbire and Murehwa districts, rural economic activities, including agriculture, rely heavily on women and youth. Women make up approximately 70% of the agricultural labor force (UNDP, 2024) in these regions, but they often lack control over resources needed to enhance productivity and economic stability such as land, credit, and markets. Â
Agroecology Living Landscapes and Gender and Social Inclusion Matter
Embedding gender and social inclusion (GESI) into agroecology is not just a moral imperative but a foundational requirement for achieving lasting and transformative impact. Traditional top-down development approaches have often neglected marginalized groups’ unique needs and contributions, resulting in unsustainable outcomes. In contrast, the AE-I prioritizes inclusive and participatory processes, exemplified by its Agroecology Living Landscapes (ALLs), which serve as collaborative spaces where community members actively co-create locally relevant solutions.  Â
Central to the CGIAR Agroecology Initiative (AE-I) is a commitment to “do no harmâsay no harm,” ensuring that the inclusion of women, youth, and other marginalized groups is safe, meaningful, and impactful. Including marginalized groups can disrupt existing power structures and opportunity hierarchies, so it must be done with contextual sensitivity. Young and old women are provided equal opportunities to participate in and contribute to the co-creation of innovations. However, systemic barriers-such as limited agency or entrenched gender norms-continue to hinder meaningful engagement. To address these challenges, AE-I collaborates with key stakeholders, such as the Ministry of Women Affairs, Community, Small and Medium Enterprises Development (MWACSMED), to advocate for gender mainstreaming. Concrete actions have included training programs, documentation of gender norms and their impacts, elevating women and youth role models, and ensuring equal participation in ALL activities. MWACSMED has evolved into a proactive stakeholder in this process. Initially a passive participant in ALL discussions, the ministry now plays a leadership role in addressing gender and social inclusion issues within the landscapes. This deliberate attention to GESI within ALLs has illuminated systemic barriers such as unequal access to resources, rigid cultural norms, and the exclusion of certain social groups.  Â
Conversations with farmers during ALLs meetings (Photo: CIMMYT)
Agroecology recognizes that inclusion is not merely about representation but about fostering environments where meaningful transformation can happen. For instance, cultural norms often limit the participation of women and youth in mixed-group activities. To address this, the AE-I initiated monthly “dialogues with elders,” engaging traditional authorities and community leaders to reconcile cultural traditions with transformative gender and social inclusion goals. These dialogues have yielded positive shifts in such perspectives. As one elder participant noted, “We value inputs from women and acknowledge their critical role in our community.” Â
The transformative impacts of AE-I’s inclusive approach are increasingly visible. Across Murehwa and Mbire districts, Agroecology Living Landscapes (ALLs) are reshaping community dynamics by empowering previously marginalized groups, such as elderly women, to contribute to agricultural innovation. Within some of the activities of the Initiative, women and youth engagement is quite impressive, with over 60% of participants in seed fairs and field days. These figures highlight the significant potential for expanding women’s and youth’s opportunities to advance agroecological goals through gender- and youth-focused interventions. It also demonstrates their eagerness to engage in knowledge-sharing opportunities. Such initiatives improve livelihoods and build women’s and youths’ agency as active contributors to agricultural innovations.Â
Inclusivity within ALLs is further is reinforced by low barriers to entry, emphasizing a willingness to learn and transform their crop and livestock production rather than asset ownership. This approach has expanded participation among resource-poor farmers, breaking down traditional exclusionary practices brought by other Donor programs. Â
As one farmer remarked, “In the past, only those with cattle or fenced homesteads could join such programs on transformative change. Now, even those of us without such assets can participate.” Â
Such practices have strengthened the confidence of marginalized farmers, enabling them to navigate complex production dynamics collectively.  Â
Building Economic Independence and Transforming Food Systems
The AE-I’s focus on inclusive value chains has begun to yield tangible economic benefits. In Mbire and Murehwa, women are transitioning from subsistence farming to economic independence by engaging in agroecological business models. For example, Sasso poultry farming has become a viable income-generating activity, allowing women to reinvest in their farm-level activities. Youth are also leveraging their involvement in agriculture to build assets, diversify income and nutritional sources, and secure a more stable future.Â
A critical challenge remains exploitative market dynamics that limit farmers profitability. Farmers have raised concerns about the informal urban markets, where asymmetric power dynamics and a lack of competitive pricing mechanisms enable buyers to dictate unfavorable prices. Middlemen in the poultry markets suppress prices by 40%, while unstructured sorghum buyers pay 20â30% below market rates, eroding farmers’ profitability. Â
Addressing these bottlenecks through cooperative-led marketing, digital trading platforms (e.g., Hamara App), and guaranteed off-take agreements ensures equitable economic participation and a resilient food system.Â
Drudgery and Women in Agri-Food Systems
The transition to agroecology offers both opportunities and challenges, particularly for women, who bear the brunt of agricultural labor. In many rural communities, women are responsible for labor-intensive activities, including land preparation, weeding, and post-harvest handling. Â
While agroecological practices promote sustainability and resilience, some approachesâsuch as conservation agricultureâcan initially increase women’s workload, exacerbating drudgery and limiting their time for other economic or social activities. Â
To ensure that agroecology transitions are both equitable and scalable, it is essential to integrate appropriate-scale mechanization that reduces labor burdens while maintaining ecological integrity. By embedding gender-responsive technologies into agroecological systems, AE-I can foster inclusive, productive and sustainable farming solutions.Â
Women in Murehwa receiving training on how to use the basin digger (Photo: CIMMYT)
To address this, the Initiative has facilitated the adoption of labor-saving technologies, improving access to mechanized solutions that ease women’s workload. In Mbire and Murehwa districts, 43 out of 95 women farmers now have access to basin diggers, significantly reducing the effort required to establish planting basins in conservation agriculture. Additionally, four multigrain threshers have been introduced in each district, enabling women to process small grain cereals more efficiently, cutting down the time spent on post-harvest handling. Â
These innovations not only alleviate physical strain but also increase productivity, allowing women to participate in value-added activities and play a greater role in decision-making processes within the food system. Â
By prioritizing appropriate-scale mechanization, the AE-I ensures that agroecology transitions foster inclusivity, sustainability, and economic empowerment for women farmers.Â
Wrap up
The CGIAR Agroecology Initiative’s work in Mbire and Murehwa provides a step forward for centering gender and social inclusion into agricultural development. Through participatory methods, inclusive partnerships, and a focus on actor agency and opportunity for behavior change, the Initiative has redefined what it means to build sustainable and equitable food systems. For donors, partners, and other stakeholders, the AE-I offers a compelling case for investing in inclusive approaches that transform agriculture and uplift entire communities. As agroecology continues to evolve, centering gender and social inclusion will remain vital for achieving sustainable, impactful outcomes. Â
In Nepal, hope is slowly taking root in the mid-hills as communities and farmers transform traditional systems into productive, diversified, nutritious and market-oriented farming systems. Through the CGIAR Mixed Farming Systems (MFS) Initiative, farmers like Ms. Birma Sunar and communities like Gurbhakot in Surkhet are building a transformative pathway. Since 2022, CIMMYT and IWMI have been supporting communities in planning and engaging stakeholders in identifying organizational and technical solutions. The initiative aims to increase milk production through improved forages, improve nutrition and income diversification through high-value fruit trees, and improve water efficiency in vegetable production through micro-irrigation.âŻâŻÂ
Birma Sunar, 49, a determined farmer from Surkhet, represents the aspirations of countless smallholder farmers struggling to survive on limited means. A Dalit woman and an amputee, her small plot of land was once dedicated to subsistence farming, leaving her family struggling to make ends meet. The maize and wheat she grew barely lasted a year, and her family of seven was struggling for food. With her husband earning meager wages as a day laborer, the family often faced food insecurity.âŻÂ
Her perspective on farming began to change when she became involved with the Mixed Farming Initiative. Birma received training in the cultivation of high-value fruit trees and the planting of Napier grass to feed dairy cattle, as well as micro-irrigation techniques. With her new skills and the eight mango saplings and one lychee tree she received from the Initiative as part of action research, she hopes to increase her family’s income..âŻâŻÂ
“I was unaware of commercial farming,” says Birma. “I have a lime tree and a banana tree in my field however, it used to be for home consumption. But now, once my mango and lychee trees start giving fruits, I hope to sell the produce in local markets and earn enough to buy essential household items and feed my family.”âŻÂ
Last year, she planted high-value fruit saplings that are now growing into healthy plants, giving her hope for stability and food security in the future.  Â
Birma Sunar intercultivating a mango plant (Photo: Lokendra Chalise/CIMMYT)
After working abroad for a few years in the hope of a brighter future, Santosh KC, 25, returned home, disheartened yet determined. Equipped with the knowledge gained from his agricultural education and a passion for change, he started a nursery for high value fruit trees and improved forages and ventured into dairy farming with Napier grass.âŻÂ
The journey was not easy. In the first year, Santosh faced losses, and his family doubted the viability of his efforts. But with unwavering dedication, he turned his fortunes around. Today, Santosh cultivates 45 ropanis (2.29 hectares) of land, raises 22 goats, and earns a steady income. He also participates in the Mixed Farming Initiative training organized jointly with the Gurbhakot municipality and mentors farmers on the benefits of mixed farming.  Â
âFor many youths, farming doesnât seem like a viable option. However, with support for modern agricultural techniques and market integration, we can build livelihoods that are not just sustainable but rewarding,â shares Santosh.âŻÂ
A Municipal Vision: Building Resilient Communities
The Initiative has been jointly implemented by CIMMYT and IWMI in the local municipality of the working district. With the support of the initiative, the Gurbhakot municipality is playing a critical role in scaling up the benefits of mixed farming. Recognizing the value of the crops, the municipality has embraced Napier grass and high-value fruits as key components of its agricultural strategy. By prioritizing mangoes, lychees, oranges, and lemons, the municipality aims to improve household nutrition and create commercial opportunities for farmers.âŻÂ
“We distributed high-value fruit trees to farmers last year under the theme ‘One Home, Two Fruit Plantsâ. This year, weâre planning a study to identify the best topography for different fruits. This knowledge will allow us to scale our goal to integrate these practices into larger public programs, creating decent livelihoods for farmers,â said Mr. Hasta Pun, Mayor of Gurbhakot Municipality.  Â
Mayor Hasta Pun (Photo: Lokendra Chalise/CIMMYT)
A Vision for the FutureâŻÂ
The Mixed Farming Initiative has been critical in identifying solutions to bring tangible improvements to smallholder farmers like Birma and Santosh, but it has also strengthened local governance and resilience. In the three years of implementation, the pilot program in Gurbhakot in Surkhet and Halesi-Tuwachung in Khotang has set the stage for scaling up these efforts in more municipalities. By 2030, the initiative aims to impact 13 million people and ensure equitable opportunities for women, youth, and marginalized communities.âŻÂ
By nurturing the saplings of high-value fruits and integrating forages, local leaders and farmers in the mid-hills of Nepal remain motivated and committed to rewriting their story âOne of hope, resilience, and the promise of a food-secure future.âŻâŻÂ
Over 80% of the worldâs 570 million farms are smallholder farms under 2 hectares, supporting rural livelihoods in impoverished regions. Smallholder farmers, who form a significant portion of the 690 million people experiencing hunger, need improved crop varieties to thrive under challenging conditions like low inputs, climate change stresses, and pests.Â
Challenges of breeding for smallholder farmersÂ
Particularly at early stages, breeding programs face difficulties replicating the diverse and resource-constrained environments of smallholder farms, referred to as the Target Population of Environments (TPE). The TPE encompasses all locations where new crop varieties will be grown, characterized by varied biophysical conditions, environmental stresses, and farming practices.Â
Conventional research stations, where new selection candidates are tested, don’t fully replicate smallholder conditions. Practices like manual labor for weed management or intercropping are common among smallholders but rarely modeled on research stations. This mismatch can lead to inaccurate predictions of crop performance on farms and discarding potentially successful candidate varieties.Â
Early-Stage On-Farm Sparse Testing (OFST)
Early-stage OFST shifts testing to hundreds of smallholder farms at early stages, addressing two major issues. First, it evaluates crops under real-world, farmer-managed conditions. Second, it captures the diversity within the TPE by conducting trials on numerous farms.Â
Using farm-as-incomplete-block (FAIB) designs, small farms test 3â5 candidate varieties, aligning with their plot size and resource constraints. A genomic relationship matrix connects trials across farms, ensuring comparability between farms and enhancing selection accuracy through the sharing of information. This approach reduce replication and enable testing more candidates, thereby improving breeding efficiency and providing a basis for accelerated parent recycling. Smallholder farmers are highly diverse, and careful sampling ensures a wide range of farmers can participate. The small land requirements of this approach allow small, poor and/or women farmers to equally participate.Â
(Photo: CIMMYT)
On-Farm Testing and on-station testing: complementary yet demanding approaches
Early-stage on-farm testing complements, rather than replaces, on-station trials. Controlled assessments for traits like disease resistance and managed abiotic stresses remain essential at research stations. Conversely, insights from early-stage OFST can help refine on-station testing to better represent farming realities.
Scaling early-stage OFST demands strong partnerships between CGIAR, NARES, and farmers for decentralized trial management. Farmers must consent to participate and be compensated for risks. Additionally, significant resources and coordination are required to ensure trials are representative and reliable.Â
Despite these challenges, early-stage OFST holds transformative potential. By aligning breeding programs with smallholder realities, it can deliver improved crop varieties faster and more effectively, enhancing food security for those who need it most.Â
For more information, see the article: Accelerating Genetic Gain through Early-Stage On-Farm Sparse Testing by Werner et al., Trends in Plant Science.Â
Women and youth are essential drivers of agricultural and economic resilience in Zambia’s rural farming communities. However, they frequently encounter significant barriers such as restrictive social norms and inadequate access to vital resources which hinder their ability to participate fully in the economy.
Female youth sharing her views (Photo: Moono Seleketi).
Recognizing the critical roles of women and youth in shaping the present and future of Zambian agriculture, the âAtubandikeâ approach, under CIMMYTâs USAID-funded Southern Africa Accelerated Innovation Delivery Initiative (AID-I) Rapid Delivery Hub project, has been actively engaging with communities to address systemic barriers faced by these groups. This initiative combines digital tools with face-to-face interactions, creating spaces where community members can share their stories, challenges, and questions to co-create solutions.
Atubandike, which means âletâs have a conversationâ in the local Tongo language, was launched in Zambia in 2023 as an advisory service. The model represents a scalable, community-led approach that empowers marginalized groups, including women and youth, as active contributors and leaders in agriculture. With each interaction building upon the previous one, this ongoing work advances the broader mission of fostering inclusivity and resilience across Zambiaâs agricultural sector.
To uncover and tackle the structural barriers faced by women and youth, the Atubandike team recently engaged over 1,700 farmers across 14 communities in Southern Zambia, gaining critical insights into the biases that persist in rural areas.
Stereotypes and structural barriers
The community conversations highlighted generational divides and deeply rooted stereotypes that cast youth as disengaged or disinterested in farming. Older community members opined that young people are more drawn to urban lifestyles and reluctant to take on the demanding labor associated with agriculture. One elderly farmer said: âMany youths prefer a comfortable lifestyle and quick money. They donât have the patience for the hard work farming requires.â
In contrast, younger participants shared that this perception overlooks the genuine obstacles they face such as limited access to land, financing, training, and mentorship opportunities. They emphasized that their lack of involvement often stems from these barriers rather than a lack of motivation.
Young male farmer speaking (Photo: Moono Seleketi).
The consultations also underscored pervasive gender norms that limit womenâs roles in agriculture. Despite their significant contributions to household food security, female farmers are often relegated to secondary roles, focusing on ‘womenâs crops such as groundnuts, while men cultivate staple crops such as maize and cash crops such as soybean. A participant shared, âThe community always perceives men as the real farmers because they are considered the heads of the household.â This perception frequently limits womenâs access to critical resources and their decision-making power within the agricultural sphere.
However, through Atubandikeâs sessions, communities are beginning to confront these entrenched norms, shedding light on the vital contributions of women and youth in agriculture. This shift is laying the groundwork for a more equitable approach, where both men and women, young and old, are recognized as essential to farming success and household resilience. As these conversations grow, Atubandike is paving the way for solutions that promise meaningful and lasting change for both women and youth in agriculture.
Community-driven solutions
Building youth capacity through skills and leadership: Many community members expressed a strong desire to see more youth involved in agricultural activities, emphasizing the importance of hands-on training. âWe need to get the youth involved in actual farming [tasks] such as irrigation and crop management. It keeps them busy and teaches them valuable skills,â shared one local leader.
To support this vision, Atubandike is training young community members as digital champions, equipping them with both technical expertise and leadership skills that allow them to mentor their peers and encourage youth participation in agriculture. These digital champions not only extend the reach of Atubandikeâs initiatives but also serve as relatable role models, inspiring other young people to engage in agriculture as well as see it as a viable and rewarding path.
 Towards a more inclusive future for Zambian agriculture
The Atubandike initiative – by fostering open community dialogue, empowering digital champions, and promoting household-level collaboration – lays the foundation for a more inclusive future for Zambian agriculture. As each community engagement builds momentum, CIMMYT, through the AID-I project, creates a cycle of empowerment and growth that ensures women and youth are not only heard but also empowered to lead.
Women celebrating at community meeting (Photo: Moono Seleketi).
Amidst the challenges of erratic weather patterns and economic constraints, building resilience through cross-generational and gender-inclusive collaboration is crucial. Atubandike is addressing these geographic and social challenges and paving the way for a future where every farmer, regardless of age or gender, plays a pivotal role in Zambiaâs agricultural success.
In a recent series of conversations with CGIAR knowledge management teams, Sara Jani and Valentina De Col interviewed JesĂșs Herrera de la Cruz, CIMMYTâs Deputy Director of Knowledge Management and Information Technologies. They discussed CGIAR’s collaboration with the Food and Agriculture Organization of the United Nations (FAO) on AGRIS and AGROVOC â two key resources in agricultural research. AGRIS is a comprehensive bibliographic database focusing on agriculture and nutrition, while AGROVOC is a multilingual thesaurus covering a wide range of agricultural terms.
Benefits of being in AGRIS
CIMMYT has shared its knowledge products with AGRIS and plans to do so more. What are the benefits of your centerâs participation in AGRIS?
JesĂșs: When I think about it, there’s one clear benefit: projection. AGRIS allows CIMMYT to be part of one of the most important databases in our field, if not the most important. This link allows us to showcase our work on a global scale. Another critical benefit is trust. AGRIS is a trusted source of accurate and reliable information. In today’s age, where the internet is flooded with information, having a trusted source like AGRIS is invaluable. It ensures that CIMMYT’s contributions are part of a verifiable and respected database, which is crucial to maintaining the integrity and credibility of our work.
Importance for CGIAR of sharing research results through AGRIS
From a broader perspective, do you think it is important for CGIAR to share its research results with a wider community and global users through AGRIS? If so, why?
JesĂșs: Absolutely, and it’s not just importantâit’s our mandate. As part of our commitment to make our public goods as accessible as possible, AGRIS is one of the main channels we use to fulfill this mandate. The more we share our scientific outputs, the better we fulfil our mission. This sharing aligns with our goals and enhances our ability to collaborate and fulfil our mission.
CIMMYT’s knowledge content: content types and topics Â
How would you describe the knowledge content produced by your center and made available through your repository? In which specific research areas does your center publish?
JesĂșs: CIMMYT focuses primarily on maize and wheat improvement, genetic resources and conservation agriculture. Recently, CIMMYT has expanded its research into other crops, although these newer projects are not yet strongly reflected in our repository. We expect this to change in the coming years as new research results becomes available. In addition to our scientific content, our repository includes institutional documents, such as financial reports and other forms of historical memory. These items are often overlooked, but they provide a richer understanding of the history of our work by offering insights into the context in which our research took place.
Importance of AGRIS for agricultural research institutions such as CGIAR
Do you think it is important for agricultural research institutions or networks such as CGIAR, to have access to a comprehensive bibliographic database such as AGRIS? If so, what are the specific benefits of having access to such a database?
JesĂșs: As I mentioned earlier, having access to AGRIS is more than importantâ it is essential. AGRIS is a cornerstone for ensuring we remain compliant with our mandate. It’s a trusted source that provides control and guarantees the credibility of the content within it. This reliability is invaluable to researchers and readers alike. AGRIS is a source of truth and its role in maintaining the integrity of our scientific output cannot be overstated.
Improving searchability and interoperability with AGROVOC
CGIAR contributes to and uses AGROVOC as a common vocabulary. How does this collaboration affect the discoverability and interoperability of your data?
JesĂșs: Absolutely. AGROVOC significantly enhances the discoverability and interoperability of our data. By using controlled vocabularies such as AGROVOC, we can ensure consistent and accurate data exchange across platforms. AGROVOC is the definitive controlled vocabulary in our field, and it plays a crucial role in maintaining the standardization necessary for seamless interoperability. For us, it’s not just a tool, itâs a cornerstone of our data management strategy, and it’s essential that it continues to be the standard.
The discussion focused on the role of AGRIS in increasing the visibility and accessibility of CIMMYT’s research results. By continuing to strengthen links with the AGRIS and AGROVOC programs, the CGIAR is well placed to increase the global impact of its research and ensure that vital agricultural knowledge reaches those who need it most around the world.
Soil health is not just a medium for healthy crop production; itâs also a vital pillar to support sustainable food production and ultimately a nationâs economy. In India, where over 45% of the population works in agriculture, soil health underpins household and national food security, rural incomes and the economy at large. Despite this dependence, the ratio of agricultural production to the national income, i.e. GDP has fallen from 35% in 1990 to 15% in 2023, a decline driven by low productivity, shrinking farm incomes, and environmental degradation (Government of India, 2023).
A tractor operates in an agricultural field in India (Photo: CIMMYT).
India faces an annual economic loss of  âč2.54 trillion annuallyâabout 2% of its GDPâdue to land degradation and unsustainable land-use practices (TERI, 2018). For smallholder farmers, soil degradation is a silent economic burden that reduces yields and increases input costs. In Bihar, studies by the Cereal Systems Initiative for South Asia (CSISA) show that droughts have a lasting impact on soil quality and agricultural productivity, with increasing frequency and severity exacerbating vulnerabilities in states like of Bihar and its neighboring states (Nageswararao et al., 2016; Singh et al., 2022).
The frequency of these drought conditions pushes farmers into a vicious cycle of low productivity, high costs for irrigation, and a growing dependence on non-farm income sources exacerbating the stateâs vulnerability to drought (Kishore et al., 2014).
âCIMMYT India scientists greatly value the opportunity to collaborate with colleagues from ICAR and other NARES partners in supporting farmers to enhance soil health and achieve sustainable productivityâ, said Alison Laing, CSISA project lead in India. âWe are proud of the contribution we make alongside the Indian national systems to improving farmers’ livelihoodsâ, she added
Investing in solutions for soil resilience
Addressing soil degradation and climate challenges requires investment in climate-resilient agricultural technologies, and robust agronomic research. Evidence-based policies are critical to sustain agriculture, improve farmer well-being and ensure food and economic security.
A promising innovation is the Soil Intelligence System (SIS), launched in 2019 under CSISA. Initially operational in Andhra Pradesh, Bihar, and Odisha, SIS generates high-quality soil data and digital maps to provide farmers with precise agronomic recommendations. These recommendations help reduce fertilizer and water overuse, improving efficiency and reducing greenhouse gas emissions. By empowering smallholder farmers with data-driven decision-making, SIS exemplifies how technology can enhance productivity and sustainability.
SISâs success extends beyond the farm. Data-driven insights have influenced policies like the Andhra Pradesh State Fertilizer and Micronutrient Policy, demonstrating the potential of soil health management to drive systemic agricultural reforms.
Working in Andhra Pradesh, Bihar and Odisha, SIS uses soil spectroscopy and digital mapping to improve sustainable soil management, reduce costs and increase productivity for smallholder farmers. (Photo: CIMMYT)
The 3M Framework: measure, monitor and manage
This yearâs World Soil Day theme, âCaring for Soils: Measure, Monitor, Manage,â highlights the importance of data driven soil management. By measuring key indicators like organic carbon levels and erosion rates, and monitoring changes overtime, policymakers can develop sustainable strategies for soil restoration.
Scaling initiatives like SIS is crucial. Robust soil monitoring programs can inform better alignment between subsidies and sustainable practices. Together with state and central governments, NGOs, and other research organizations, CIMMYT is actively collaborating with farmers to measure, monitor and manage soil health for long-term sustainability and resilience.
References:
Government of India (2023). Contribution of agriculture in GDP. Department of Agriculture & Farmers Welfare. Accessed online.
TERI (2018). Economics of Desertification, Land Degradation and Drought in India, Vol I. The Energy and Resources Institute. Accessed online.
Nageswararao, M.M., Dhekale, B.S., & Mohanty, U.C. (2016). Impact of climate variability on various Rabi crops over Northwest India. Theoretical and Applied Climatology, 131(503â521). https://doi.org/10.1007/s00704-016-1991-7.
Singh, A. & Akhtar, Md. P. (2022). Drought-like situation in Bihar: Study and thought of sustainable strategy. IWRA (India) Journal, 11(1). Accessed online.
Kishore, A., Joshi, P.K., & Pandey, D. (2014). Droughts, Distress, and Policies for Drought Proofing Agriculture in Bihar, India. IFPRI Discussion Paper 01398. https://ssrn.com/abstract=2545463.
The Zambia Agricultural Research Institute (ZARI) has undergone a significant transformation, fueled by a strategic subgrant from the Bill & Melinda Gates Foundation through the Africa Dryland Crop Improvement Network (ADCIN). Established in August 2023 and convened by CIMMYT through its Dryland Crops Program (DCP), ADCIN is a collaborative network aimed at uniting over 200 scientists from more than 17 countries across sub-Saharan Africa. Its mission is to create a dynamic and sustainable network to develop and deliver improved varieties of dryland crops in the region. By leveraging the collective expertise of its multidisciplinary members, ADCIN strives to accelerate the access of enhanced crop varieties to smallholder farmers.
This support has led to the modernization of ZARIâs research facilities, improved irrigation systems, and enhanced data management capabilities, positioning the institute as a leader in climate-smart crop research. Key advances include speed breeding and controlled drought research, which have led to higher crop yields and better adaptation to climate challenges. These improvements have not only strengthened Zambiaâs agricultural research capacity but also fostered regional collaboration and knowledge sharing, benefiting farmers, scientists, and institutions across Southern Africa. The instituteâs improved infrastructure, including expanded water storage and solar power, has ensured uninterrupted research, even during power outages. As a model for other NARES institutions, ZARIâs transformation highlights the critical role of strategic investment in agricultural research to address the growing challenges of climate change and food security across Africa.
We caught up with Dr. Loyd Mbulwe, the Ag. Chief Agriculture Research Officer at ZARI, to get more insight into the upgrade.
Q: What were some of the challenges ZARI faced before the upgrades?
A: ZARI faced several research-related challenges that hampered its potential for innovation. These included limited access to essential research equipment, inadequate funding for critical projects, and insufficient capacity for data management and analysis. Collaboration and knowledge sharing with regional and international partners were also limited.
In terms of infrastructure, ZARI struggled with outdated laboratory facilities, inefficient greenhouse and irrigation systems, and limited storage space for seeds and plant materials. The institution’s ICT infrastructure was inadequate to support modern agricultural research needs. Operational efficiency was hampered by manual data collection, inefficient research protocols, and inadequate standard operating procedures.
Q: How has the upgrade helped ZARI overcome these challenges, and how has it improved the quality and quantity of research coming out of ZARI?
A: Recent upgrades at ZARI have significantly improved its research capabilities. New equipment and increased funding have supported larger projects, while improved data management systems have streamlined data handling and fostered greater collaboration with regional and international partners. The addition of a modern greenhouse and upgraded irrigation systems has improved water management and allowed for more controlled experiments. Expanded seed storage capacity now ensures the secure preservation of critical plant material for future research.
Automated data collection systems have reduced errors and increased efficiency, while standardized research procedures have improved the quality and reproducibility of results. Improved research documentation and targeted staff training programs have further enhanced research skills, enabling the team to produce more impactful results.
The newly constructed greenhouse facility enhances crop breeding and genetics research, enabling efficient off-season studies. âŻ(Photo: ZARI/Zambia)
Q: How has ZARIâs research capacity improved with the upgraded facilities and new equipment?
A: ZARI has undergone significant upgrades to improve its research capacity. The new greenhouse facility has improved crop breeding and genetics research, allowing for more efficient off-season research. Speed breeding, a technique that accelerates crop generation turnover by two to five times through controlled environmental conditions, has been a game changer. The greenhouse also enables controlled drought research, providing insights into the development of climate-resilient crops. The ZAMGRO project has increased ZARI’s water storage capacity from 45 mÂČ to 3.6 million mÂČ, enabling year-round farming and improved water management. The subgrant also enabled the installation of solar power, addressing the electricity challenges caused by recent droughts. The move to Starlink internet connectivity has also improved ZARI’s online capabilities, providing reliable, uninterrupted internet access, even in remote research sites.
An aerial view of the installed solar panels, that has resolved electricity challenges and mitigating power outages. (Photo: ZARI/Zambia)
Q: Looking ahead, what are ZARIâs future plans? Are there any further upgrades or expansions planned for the future?
A: ZARI’s future plans focus on increasing its research impact through strategic partnerships and innovation. The institute aims to establish a center of excellence for climate-smart agriculture and develop a biotechnology laboratory to advance genetic improvement and crop resilience. Expanding greenhouse and irrigation systems and improving digital infrastructure for data management are also priorities. ZARI also plans to strengthen collaborations with international research institutions and pursue public-private partnerships to transfer technology from research to practical applications. In addition, ZARI is committed to human resource development through targeted training, fellowships, and mentorship programs to nurture future researchers.
Q: What steps is ZARI taking to ensure the long-term sustainability of the upgraded facilities and research programs?
A: ZARI has implemented a comprehensive plan to ensure the long-term sustainability of its upgraded facilities and research programs. Key areas include maintenance of facilities, continuation of research programs, capacity building, partnerships, and knowledge sharing. ZARI has secured funding from partners and donors, diversified its income streams, and developed sustainable research funding models. Staff training, mentoring programs, and collaboration with international experts are key to ensuring that the research team stays abreast of new technologies. Strategic partnerships with private sector companies, joint research initiatives, and technology transfer agreements have further strengthened ZARIâs research capabilities. Regular impact assessments and collaborations with universities, research institutes, and government agencies further strengthen ZARI’s research capabilities and ensure that programs remain relevant and impactful.
An aerial view of the water storage system during installation. This has increased the capacity to support year-round farming and improved water management. (Photo: ZARI/Zambia)
Q: In what ways can this facility upgrade serve as a model or inspiration for other NARES facilities in the region? Are there any best practices that ZARI would recommend for similar projects?
A: The ZARI facility upgrade serves as a model for other NARES institutions in several significant ways. First, it highlights the importance of strategic partnerships, demonstrating how collaboration with regional and international organizations can lead to meaningful progress. Second, it emphasizes capacity building, with a focus on investing in staff training and development to improve institutional performance.
There are also several inspirational aspects to ZARIâs transformation. It demonstrates the transformative impact that research modernization can have on NARES breeding programs and shows the potential for improving agricultural research capacity. In addition, the upgrade is highly regionally relevant, addressing pressing regional challenges.
Finally, ZARI’s best practices provide valuable lessons for other institutions. The irrigation upgrade is an outstanding example, tailored to address the unique challenges posed by climate change in the region.
Unboxing the Starlink hardware: Transitioning to Starlink ensures reliable and uninterrupted internet access, even in remote research sites. (Photo: ZARI/Zambia)
Q: What was ADCINâs role in facilitating this strategic investment, and how does it fit into the broader vision of strengthening NARES institutions across Africa?
A: ADCIN plays a key role in supporting the development and modernization of NARES institutions across Africa. Its contributions can be seen in three key areas. First, ADCIN provides technical assistance by offering expertise in research infrastructure development. Second, it provides financial support by mobilizing the resources needed to upgrade facilities. Third, ADCIN provides strategic guidance, ensuring that investments are aligned with regional research priorities and agendas.
This support fits into the broader vision of strengthening NARES institutions across the continent. ADCINâs efforts focus on improving research capacity through upgrading facilities and equipment, fostering collaboration by promoting regional and international partnerships, and improving research quality through stronger research management and governance. As a result of ADCIN’s support, NARES institutions such as ZARI have seen significant improvements. Research output and impact have increased, regional collaboration has been strengthened, and institutions now have better access to international funding. By supporting ZARI’s strategic investments, ADCIN reaffirms its commitment to strengthening NARES institutions and promoting excellence in agricultural research across Africa.
The foundation for a Vision for Adapted Crops and Soil (VACS) is capacity building: to boost adoption of opportunity crops, for nutritional security, diverse and climate-resilient cropping systems, to build healthy soils, a cohort of researchers and professionals is being supported to improve opportunity crops in Africa. Launched in October 2024 in Nairobi, Kenya, the VACS Capacity Project aims to train scholars and professionals in the latest plant breeding technologies. Professor Julia Sibiya, VACS Capacity Project Lead at CIMMYT, elaborates on how the project aims to contribute to the promotion, development and delivery of improved âcrops that nourishâ people, and the planet.
As part of the VACS Capacity Project, 30 Master and PhD students will be mentored by prominent experts in plant breeding. What support will they receive?
The students will be exposed to the latest technologies in plant breeding but will also learn from their mentors to deliver the VACS vision on opportunity crops and healthy soils.
The project also includes training of 40 mid-careers professionals. We want them to master the latest technologies and be able to apply them to develop improved opportunity crop varieties that will be used by farmers.
For maximum and long-term impact, the CIMMYT Academy, with the support of the Sustainable Agrifood Systems program, is developing gender-aware mentoring and curriculum on a wide range of topics, to directly address priorities of the 70 scholars and professionals. Expertise is being sourced at institutions such as Iowa State University, CIMMYT and African universities for robust e-learning modules on the entire plant breeding pipeline and seed systems, with materials updated and designed for the African continent.
What gaps does the VACS Capacity Project aim to address?
Today, in Africa, very few plant breeders and scientists working on plant improvement are focusing on the opportunity crops identified by VACS, such as finger millet, bambara groundnut, and amaranth. Most breeders focus on the main staples. This is why we want to build a critical mass of scientists who work on opportunity crops that are vital for food security and nutrition under climate change.
Besides increasing the critical mass of researchers working on the opportunity crops, we also want to bring up-to-date the skills of professionals in the breeding sector, which is a sector where technologies are evolving very quickly. Most of the approaches to crop improvement used today differ greatly from approaches used ten years ago, hence the request by many professionals to upgrade their skills.
In addition to the long-term training fellowships for Master and PhD students, we will provide targeted skills training to professionals, with short-term placements between one and six months in institutions where they can learn cutting-edge techniques that they will apply to opportunity crops.
The project is also designed to build networks and communities of practice around these crops, so people can collaborate in breeding and scaling efforts that are requested by farmers and consider market intelligence for impact pathways. This is in addition to exchanging knowledge and germplasm.
How does this project differ from other plant breeding capacity building projects?
The difference is that we will place professionals into institutions where they will be provided with hands-on training. We will work with universities, international research institutes, and the private sector, including seed companies. This is like offering internships to mid-career professionals who want to upgrade their skills or learn new ones.
Our approach also includes mentorships for both scholars and professionals. Mentors will be recruited from all over the world to assist the fellows in various aspects of their research journey. Last but not least, we hope to see researchers working with farmers so they can learn from each other.
What are the expected outcomes of reaching a âcritical mass of plant breedersâ?
The objective is to have sufficient breeders to implement crop breeding programs designed for opportunity crops. We also want to encourage them to apply modern techniques to improve opportunity crops and, this way, to contribute to the development of more nutritious plants that are grown in healthy soils. As I mentioned earlier, besides empowering scientists themselves, we also aim to create the conditions for effective collaboration and partnerships for the successful delivery of improved opportunity crop varieties, and this delivery will be accelerated by reducing the breeding cycle. Overall, it will allow us to scale up efforts towards opportunity crops worldwide.
Rice is a critical staple for food security and a key export crop for India. The study published in Nature Communications explores context-specific pathways for increasing rice production in India, focusing on sustainable intensification â boosting yields without harming the environment or farm profitability.
The research analyzed over 15,000 field records across seven major rice-producing states in India using advanced machine learning techniques. The study identified nitrogen application and irrigation as key factors limiting yields, particularly in Eastern India (Bihar and Uttar Pradesh). By targeting farms with nitrogen and irrigation deficiencies, the study projects that yield gains could more than triple compared to general recommendations. Specifically, farms suffering from co-limitation by both nitrogen and irrigation could see the most significant gains in productivity and profitability.
Four scenarios for sustainable intensification were evaluated, ranging from blanket application of current nitrogen recommendations to highly targeted interventions. The analysis showed that targeted strategies, focusing on farms with the greatest yield constraints, could significantly improve nitrogen use efficiency and result in greater yields and profitability without excessive resource use.
The study highlights the potential of data-driven, context-specific solutions for rice intensification in India, emphasizing that targeted interventions could offer both higher returns for farmers and better environmental sustainability. It suggests a move away from “one-size-fits-all” approaches towards more precise, farm-specific recommendations based on local conditions and data. This approach could help close yield gaps while aligning with sustainable development goals.
Partners at the AID-I exhibition booth (Photo: CIMMYT)
In Tanzania, the first week of August is all about agriculture. From August 1 to 8, agricultural fairs, also known as Nane Nanefairs, are held all over the country to recognize the contribution of farmers to the national economy. âNane Naneâ in the local language means âeight eight,â referring to August 8, which is celebrated as Farmers Day in the country.
Organized by the Agricultural Society of Tanzania, these fairs serve as a landmark event for agricultural stakeholders across the region. This year, the 31st edition of the fair was organized at the Nzuguni grounds in Dodoma. It saw 500 exhibitors, including smallholder farmers, agricultural enterprises, public and private sector entities, and government officials.
Themed âEmbrace Visionary Leadership for Agricultural Transformation,â the event emphasized the need for leadership commitment to sustainable agriculture, while highlighting the critical role of agriculture in Tanzaniaâs economic growth and food security.
TheSouthern Africa Accelerated Innovation Delivery Initiative (AID-I), funded by United States Agency for International Development (USAID) and implemented by CIMMYT, along with several partners, played a prominent role at this yearâs fair. In addition to raising awareness of the innovative work being done, the fair provided a platform for AID-I and its partners to showcase a range of innovative agricultural technologies designed to address the specific needs of Tanzanian farmers. The event also enabled AID-I and its partners to interact directly with farmers and entrepreneurs, resulting in valuable feedback.Â
Celebrating the Success of AID-I Beneficiaries at Nane Nane
The Nane Nane fair was more than just a display of agricultural technologies. It was also a celebration of the successes of local entrepreneurs who had benefited from AID-I’s support.
Among them was Sarah Mashauri, an entrepreneur from the Tabora region, who ventured into the business world by producing and selling maize flour, both wholesale and retail. Starting with only one sack of maize and a loan of 100,000 Tanzanian shillings (approximately US$36), Sarah faced numerous obstacles, including regulatory challenges that resulted in the Tanzania Food and Drugs Authority confiscating her items. The AID-I project recognized her potential and resilience. She was equipped with a milling and dehulling machine, which significantly improved her business. âBefore the AID-I project came into my life, I was struggling on my own,â she said. âThe support, coupled with the extensive training they provided, enabled me to scale up my operations. I went from employing seven people to 35, and my business expanded significantly. I am now able to source raw materials easily from small-scale farmers, thanks to the networks and training provided by AID-I.â
Agatha Laiza, managing director of Seasoning Palate, a food products company operating under the brand name Tobi Product in Dar es Salaam, is another entrepreneur who benefited from AID-I’s support. Agatha specializes in peanut butter, crunchy nuts, and peanut oil. Her journey began in 1996 with a focus on food product processing. She later realized the potential in peanut production and shifted to adding value to peanuts, while also addressing the critical issue of aflatoxin contamination. With support from AID-I, Agatha was able to build solar dryers for farmers and provide them with high-quality seeds, significantly reducing the risk of aflatoxin in their crops. âThe support from USAID, CIMMYT, and AID-I has been invaluable,â Agatha said. âThey have helped us build confidence among our farmers, reducing ground nut loss and ensuring safe, quality produce. Our factory, which can process up to three tons of peanuts daily, now operates more efficiently and our products are safer and more reliable.â
Aithan Chaula, executive director of the Dodoma Agriculture Seed Production Association (DASPA), also benefited from the AID-I projectâs support. Since beginning pigeon pea production in 2022, DASPA saw substantial growth in demand for pigeon pea seeds, partnering with ALSSEM, a local seed production company.
DASPA expanded its operations to produce quality declared seeds (QDS) and certified seeds, catering to a growing market. Aithan attributed their success to the strategic support from AID-I and partnerships with organizations such as CIMMYT and ALSSEM. âThe collaboration allowed us to expand our production capabilities and reach more farmers across various regions,â he said. DASPA is currently working with approximately 20,000 farmers and plans to increase this number by distributing small seed packs and conducting field demonstrations.
âThis year at Nane Nane, we were able to distribute small packs of pigeon pea seeds to approximately 1,200 farmers to plant and farm,â said Aithan. âThis effort, supported by AID-I, ensures that pigeon pea cultivation becomes well-known and widely adopted by farmers, contributing to both food security and income generation.â
The U.SA Ambassador to Tanzania interacting with exhibitors at the AID-I exhibition booth (Photo: CIMMYT)
Dr. Michael A. Battle Sr., the United States Ambassador to Tanzania, paid a visit to the AID-I exhibition booth. He engaged with AID-I representatives and the exhibitors, praising their innovative efforts to advance climate-smart agriculture and enhance food security. âIt’s a joy to be participating in Nane Nane, particularly because USAID is interested in assisting Tanzania not only to become food secure but also to help with East Africaâs food security and ultimately the continentâs food security,â said Ambassador Battle Sr. He added that it was fulfilling to see the entire value chain of agriculture and agribusiness involving young people and old people engaged in the process of making Tanzania wealthier and more food secure.
For AID-I and its partners, the fair was a crucial opportunity to highlight ongoing initiatives and foster new partnerships. Peter Setimela, the Legume Seed Systems lead for AID-I, emphasized the importance of such events. âOur work in accelerating innovative technologies and ensuring they reach the farmers is reliant on strong partnerships. We bring these technologies to farmers by strengthening local seed systems, connecting farmers to financial services and products, and providing advisory services,â he said.
CIMMYT Director General Bram Govaertsâ visit to The University of Queensland (UQ) on September 27, 2024, reinforced a long-standing partnership aimed at tackling global food security and sustainability challenges. For over 50 years, CIMMYTâs collaboration with Australian researchers has advanced wheat breeding, contributing significantly to Australia’s agricultural resilience. The visit emphasized expanding research on key crops like sorghum, millets, and legumes, while promoting sustainable practices and climate resilience in agriculture. This collaboration continues to drive innovations that benefit not only Australia but also regions across the Indo-Pacific and Africa.
At the UN General Assembly, the U.S. Department of State announced $5 million in food security assistance to advance the Vision for Adapted Crops and Soils initiative in Guatemala. Co-led by CIMMYT and FAO, it aims to enhance sustainable agriculture through innovative practices that improve soil health and crop diversity. This initiative, part of the U.S. Feed the Future program, will strengthen resilience to climate change and support Guatemala’s agricultural sector, directly benefiting the 1.6 million people dependent on farming. CIMMYTâs leadership ensures scientific expertise in crop and soil management is central to addressing food insecurity and malnutrition in the region.
Rebecca Benson, a 30-year-old mother of three from Igurusi village in Mbeya, Tanzania, is living proof of how small efforts against food loss can significantly impact peopleâs lives. Her journey unfolded during a recent USAID field mission in Tanzania for CIMMYTâs Southern Africa Accelerated Innovation Delivery Initiative (AID-I) project when we visited a grain storage facility operated by the Igurusi Agricultural Marketing Cooperative Society (AMCOS). This local cooperative provides storage facilities and connects rice farmers to buyers, ensuring their produce is preserved and marketed efficiently. The warehouse stores over 1,000 tons of paddy, which is dried, stored, and ready for market.
As we toured the warehouse, we noticed that between the collection and storage of produce, small amounts of paddy had spilled onto the ground. Although this might seem like a minor oversight, it quickly became clear that what could have been discarded as waste was, for some, a valuable resource.
Turning Food Loss into Livelihood
A few meters away, we noticed Rebecca winnowing paddy. Intrigued by the picturesque scene of wind blowing away chaff, we approached her and soon discovered her remarkable story. Initially shy, Rebecca gradually opened up to us and shared her story of resilience and great inspiration. Four years ago, Rebecca left a comfortable life for one filled with struggle. She had been in an abusive marriage but decided to rebuild her life after an altercation with her husband almost turned fatal.
âHe would drink and become very violent. I had endured a lot but realized that he might one day kill me. I was very scared,â Rebecca narrated.
Starting life on her own and without access to her familyâs land, she struggled to continue her rice farming, facing the overwhelming costs of leasing land and maintaining a farm. As her situation worsened, she found it increasingly difficult to provide for her children.
A happy Rebecca Benson winnowing paddy she collected from the ground at the Igurusi AMCOS (Photo: Maria Monayo, CIMMYT)
In her quest for survival, Rebecca began collecting waste paddy from spillage at the AMCOS warehouse. Initially, after threshing, it was just enough for her family to feed on, but she soon realized she could sell some of the rice to generate income. With the cooperativeâs permission, she started collecting, cleaning, and selling the grains at Tsh 700 per kilogram. On average, Rebecca gathers over 20 kg of rice daily, which helps her pay rent, school fees, and feed her family. Although a tedious task to sift through the soil and rocks, Rebecca does it enthusiastically.
While she hopes to one day acquire land and return to farming, Rebecca remains grateful for the opportunity she has now. “It is hard work, and I want to improve my life and that of my children. I have not been able to save enough to lease land for farming, but that is my goal,â she said. The work also keeps her busy and has granted her independence from her abusive partner, allowing her to support her family on her own.
The Reality of Post-Harvest Grain Loss
In Sub-Saharan Africa, post-harvest grain loss amounts to millions of dollars in lost revenue and a reduction in food security due to inadequate storage facilities and improper handling during drying and transport. While AMCOS works hard to preserve crops and prevent large-scale food loss, the small quantities of spilled rice are an unavoidable consequence of handling large volumes. For Rebecca, however, these spilled grains represent a lifeline. Through her resourcefulness, she has turned what could have been wasted into an opportunity, providing her family with food and financial stability.
Soils are the bedrock for plant health and sustenance, but how do we protect and enhance them to maximize their nutritional potential? Years of conventional farming practices have left many soils depleted, raising urgent concerns about how to rejuvenate them. The recent El Niño event during the 2023/24 farming season in southern Africa, bringing extreme weather conditionsâranging from prolonged droughts to intense floodsâhas exposed the vulnerability of these soils. Poorly managed soils, already strained by years of excessive tillage and lack of cover, struggle to retain moisture under such stress, leading to crop failures even after rainfall.
However, conservation agriculture (CA) offers a vital solution. By improving soil structure and moisture retention, CA practices provide a lifeline for crops in challenging conditions. Recognizing this, CIMMYT scientists are actively promoting CA among smallholder farmers across sub-Saharan Africa, highlighting its critical role in sustaining soil health and resilience in the face of climate challenges.
Described as lumps of soil particles that bind together strongly, soil aggregates play a vital role in maintaining soil health, supporting plant growth, and sustaining agricultural productivity. Formed by the combined effects of biological, chemical, and physical processes, the structure and stability of soil aggregates are crucial for several soil functionsâprimarily water infiltration, root growth, and resistance to erosion. Soil aggregates consist of various soil particles, including sand, silt, clay, and organic matter. There are different types of soil aggregates, including macroaggregates (>0.25 mm) and microaggregates (<0.25 mm), with macroaggregates typically more stable and beneficial for soil structure and functions.
Demonstrating the value of soil aggregate stability
A CIMMYT researcher holding a soil aggregate from a CA field (CIMMYT)
Imagine three soil aggregate samples taken from the same field but under different management regimesâfrom virgin soil that has not been previously cropped, to land under conservation agriculture practices for the last 5 to 8 years, and soil conventionally ploughed annually before crop planting for many years. When these soil aggregates are gently immersed in clear water, stark differences can be noted. The aggregates from conventionally tilled soil, weakened by years of intensive cultivation, quickly disintegrate, turning the water murky and brown.
In contrast, the aggregates from virgin soil remain intact, preserving the waterâs clarity even after several hours. The CA soil aggregates exhibit much better stability than those from the conventionally tilled soil but fail to remain as intact as those from the natural virgin soil. A simple lesson is drawn from this demonstration! Restoring degraded soils is a serious challenge. Even after 5 years of CA practices, soil organic carbon levels may only show modest improvement, and the aggregates, while more stable, still donât match the condition of aggregates from virgin soil.
Soil recovery from a degraded state is a slow process that is not âa walk in the park.â Transitioning from conventional tillage to CA is challenging and slow, requiring years to rebuild organic matter and improve aggregate stability. Patience and careful soil management are vital, as degradation can occur rapidly, but recovery is a lengthy process. However, incorporating organic soil amendments like manure and compost, along with diversifying crops by introducing legumes such as cowpea, groundnut, soybean, mucuna, and pigeon pea, can accelerate this recovery. While degradation occurs rapidly, soil restoration demands a long-term commitment, but the rewards are worth the effort.
Exploring conservation agriculture as a source to improve soil health
Conservation agriculture is built on three key principles: reduced soil disturbance, permanent soil cover, and diverse crop rotation. Minimizing soil disturbance helps preserve soil structure, while permanent soil cover shields the soil against splash erosion and boosts microbial activity. Crop rotation enhances soil fertility, maintains aggregate structure, and disrupts pest and disease cycles. These principles are essential for soil recovery and the retention of organic matter.
Among these, permanent soil cover is often the most challenging for farmers to implement, yet it is critical for effective soil management. Demonstrating its importance, a simple test with water applied to soil samples with varying levels of cover illustrates splash erosion effects.
âSuch a simple test mimics real-life conditions farmers face during rains. Soils without cover suffer significant erosion, while those with minimal or substantial cover show reduced erosion and improved water retention. This emphasizes the importance of maintaining permanent soil cover to foster microbial activity and enhance soil health,â highlighted Isaiah Nyagumbo, cropping systems agronomist.
In a nutshell, soil aggregate management is fundamental to climate resilience and agricultural sustainability. Through the adoption of conservation agriculture practices, smallholder farmers can significantly improve soil health, enhance water and nutrient retention, and increase crop resilience to climate stress. The journey from degraded to healthy soil is long and challenging, but with careful management and patience, the benefits are profound and lasting. By understanding and implementing these principles, farmers can build a more sustainable and resilient food system.
