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Advanced Training in Conservation Agriculture: Fostering Sustainable Agronomic Systems

Written by dmedina on . Posted in Blogs.

Participants attended the opening ceremony at NAS Complex in New Delhi (Photo: CIMMYT)

CIMMYT, the Borlaug Institute for South Asia (BISA), and the Indian Council of Agricultural Research (ICAR) jointly organized a three-week training course on conservation agriculture (CA) and regenerative agriculture (RA). The program focused on the potential of sustainable farming methods as vital tools for managing risks in agrifood systems in both irrigated and rainfed areas.

Held from December 3–23, 2024, the training brought together farmers, scientists, and stakeholders to explore innovative solutions to agrifood challenges. Sessions were held at the ICAR Indian Institute of Maize Research and BISA in Ludhiana, Punjab; the ICAR-Central Soil Salinity Research Institute in Karnal, Haryana; and the ICAR-Indian Institute of Farming Systems Research in Meerut, Uttar Pradesh, India.

Building Resilient Agrifood Systems

Conservation agriculture (CA) and regenerative agriculture (RA) are approaches to land management that prioritize ecosystem health. These practices are based on three core principles: minimal soil disturbance, continuous soil cover, and crop diversification. Together, they improve yields, restore natural resources, reduce farming costs, and develop resilient agricultural systems that protect the environment, enhance climate resilience, and improve rural livelihoods, particularly in the Global South.

In South Asia, where rural communities rely heavily on natural resources, farmers face significant challenges, including loss of soil fertility, water scarcity, pollution, and the effects of climate change. These pressures are straining agricultural systems, particularly in irrigated and dryland farming areas.

Despite the clear benefits of CA, adoption remains limited due to barriers such as lack of knowledge on how to implement CA in different agro-ecologies, limited access to appropriate tools, insufficient policy support, and low awareness of the long-term benefits of CA. To address these challenges, training and capacity development are essential for scaling up CA technologies among smallholder farmers and ensuring their long-term impact.

The Advanced Course on CA/RA in Asia was launched in 2010 by CIMMYT in partnership with the Indian Council of Agricultural Research (ICAR) to address the challenges of sustainable agriculture. Since its inception, advanced training workshops have been held annually, and this is the 13th edition.

The training bridges cutting-edge scientific research and multidisciplinary strategies, equipping participants with skills in sustainable intensification, diversification of production systems, resilience-building, and natural resource conservation. To date, CA training has benefited more than 220 researchers, policymakers, and development practitioners from 20 countries.

The 13th edition, held in India, welcomed mid-career researchers from Uzbekistan, Morocco, and India. The course was coordinated by Mahesh Gathala, Cropping Systems Agronomist, and Alison Laing, Agroecology Specialist, both from CIMMYT; Madhu Choudhary, Senior Scientist at ICAR-CSSRI; and Raj Kumar Jat, Senior Scientist at BISA.

Key Highlights of the Advanced Conservation Agriculture Training Course

The Advanced Conservation Agriculture (CA) course was inaugurated on December 4, 2024, at the NASC Complex in New Delhi. The inaugural address was delivered by S.K. Chaudhari, Deputy Director General for Natural Resource Management at ICAR, who highlighted the importance of CA in addressing climate challenges and managing agronomic risks. Chaudhari emphasized CIMMYT’s leadership in promoting CA in India and reflected on the impact of the program, saying, “I have been watching this course for many years. Many young scientists have benefited from this course.” He also fondly recalled the inaugural training session held 13 years ago and extended his best wishes to all the participants. Watch his complete statement here.

Participants experiencing hands-on training at the BISA farm in Ludhiana.

During the course, participants explored a wide range of topics related to conservation agriculture (CA) and regenerative agriculture (RA) in different agro-ecologies. Key areas of focus included the role of emerging technologies such as drones, carbon credits, soil fertility, nutrient management, crop modeling, and soil testing in informing policy. Experts from various scientific disciplines provided valuable insights into cutting-edge research for both irrigated and dryland systems.

At BISA’s research station in Ludhiana, participants gained practical experience through hands-on training sessions conducted under the expert guidance of H.S. Sidhu and Manpreet Singh (both from Punjab Agricultural University), with the support of Pardeep Sangwal (BISA).

Participants learning new techniques at CSSRI, Karnal (Photo: CIMMYT)

The training included field visits to ICAR-CSSRI in Karnal, where Director R.K. Yadav, Madhu Choudhary, and Kailash Prajapat presented the Institute’s long-term conservation agriculture (CA) experiments. They also conducted hands-on demonstrations on soil biology and its role in generating evidence for policy decisions.

In addition, Mahesh Gathala conducted hands-on training in basic soil physical and chemical analysis techniques at joint ICAR-CIMMYT field plots in Karnal.

Special visits were organized to innovative agricultural machinery manufacturers, including Landforce and National Agroindustry, where participants observed advanced manufacturing techniques and explored the latest agricultural equipment.

Participants also interacted with the manufacturers’ association at the 5th India International Agri Expo in Ludhiana, gaining insights into emerging trends in agricultural machinery.

Participants visited the National Agro manufacturing unit in Ludhiana, Punjab (Photo: CIMMYT)

In addition, a village visit outside Karnal gave participants the opportunity to interact with farmers practicing conservation agriculture (CA). Farmers shared their experiences, giving participants a first-hand look at the practical benefits and real-world impact of CA on farming communities.

A visit to Golden Temple in Amritsar, Punjab (Photo: CIMMYT)

The success of the program underscores the importance of continued collaboration and training in advancing sustainable agricultural practices. By equipping participants with practical skills, cutting-edge knowledge, and opportunities to connect with peers across regions, the training was instrumental in advancing conservation agriculture (CA) and regenerative agriculture (RA).

Participants left the program with enhanced technical expertise, greater confidence in applying CA practices, and valuable insights into emerging areas such as carbon credit schemes and innovative agricultural technologies. These results underscore the critical role of capacity development in strengthening food security, building climate resilience, and promoting sustainable development in the Global South.

CIMMYT-ICAR Workshop on Long-Term Agricultural Experiments

Written by Nima Chodon on . Posted in News.

CIMMYT-ICAR Workshop on Long-Term Agricultural Experiments (Photo: CIMMYT)

CIMMYT and the Indian Council of Agricultural Research (ICAR), New Delhi, co-hosted a one-day workshop on Long-Term Experiments (LTEs) in agriculture, focusing on Conservation Agriculture (CA) and Regenerative Agriculture (RA) practices. The workshop aimed to explore strategies for researchers from the national systems to come together with CIMMYT colleagues and identify ways to increase productivity, improve food security, strengthen climate resilience of agricultural systems, and enable Indian farmers and researchers to take advantage of innovations and new research in LTEs. 

The event brought together leaders from ICAR’s research divisions and institutes – including Natural Resource Management (NRM), Indian Agriculture Research Institute (IARI), Central Soil Salinity Research Institute (CSSRI) and the Research Complex for the Eastern Region (RCER) – with partner CGIAR centres CIMMYT, ICRISAT and IRRI, and others from donor agencies, private agricultural research organizations and the Borlaug Institute for South Asia (BISA). 

The event was chaired by Dr Suresh Kumar Chaudhari, Deputy Director General for Natural Resource Management at ICAR. In his remarks, Dr Chaudhari highlighted the critical role of LTEs in understanding evolving agri-food systems. He emphasized the value of revisiting past research with fresh perspectives, taking into account new knowledge, and taking a long-term, strategic view of our agricultural research portfolios.   

Dr. Prasanna Boddupalli, Regional Director for South Asia – CIMMYT, highlighted the importance of LTEs in generating knowledge for sustainable practices. He expressed hope that the workshop would inspire innovative ideas, such as the use of climate-resilient crop varieties like drought- and heat-tolerant maize, and the use of predictive analytics and machine learning to identify emerging trends  

Dr Alison Laing chaired the workshop. She outlined the objectives of the workshop and emphasize the importance of collaborative discussions in formulating guidelines and recommendations for ongoing and future experiments on CA and RA. She also highlighted the need for resource mobilization and contributions from the participating institutions.  

The opening session featured presentations by senior scientists, including Dr M.L. Jat (ICRISAT), Dr Rajbir Singh (ICAR-NRM ADG), Dr Rakesh Kumar (ICAR-RCER), Dr Madhu Choudhary (ICAR-CSSRI), Dr H.S. Jat (ICAR-IIMR) and Dr C.M. Parihar (ICAR-IARI). They provided insights into ongoing LTEs on CA and RA at their research institutions, including key research foci, discussed challenges and opportunities, and stressed the importance of ensuring the continuity of LTEs in the face of shifting priorities and donor fatigue. 

All participants then engaged in group discussions to address emerging priorities, funding challenges and barriers to implementation, and to identify ways in which LTEs can generate data to demonstrate the long-term impacts of agricultural practices and the performance of different cropping systems. These breakout sessions culminated in a plenary session where participants consolidated key issues and reached consensus on actionable recommendations. 

Dr Laing concluded the workshop by announcing that the recommendations would be compiled into a joint document to be submitted to ICAR-NRM, providing a roadmap for strengthening LTEs in India. 

In his vote of thanks, Dr Mahesh Gathala (CIMMYT) commended the participants for their valuable contributions to the objectives of the workshop’s. He expressed confidence in the collective commitment of scientists and institutions – public and private – to the advancement of LTEs and their critical role in strengthening agricultural and food system science and research. 

Strengthening the roots of an agri-carbon market

Written by dmedina on . Posted in In the media.

CIMMYT’s economists Adeeth Cariappa and Vijesh Krishna examine the potential of agricultural carbon markets to boost sustainable farming in India while addressing climate change. Their study, published in Climate Policy, reviewed seven carbon farming projects in Haryana and Madhya Pradesh, finding limited participation from smallholders and marginalized communities, with women making up just 4% of participants.

Although new sustainable practices such as zero tillage and intercropping were adopted, key challenges remain, including poor communication, insufficient training, and delayed payments—resulting in nearly 28% of farmers abandoning these practices. To improve outcomes, the authors recommend offering better financial incentives, ensuring timely payments, and improving project implementation through partnerships with research institutions. Digital technologies like remote sensing and satellite imagery are expected to play a critical role in improving carbon credit monitoring and farmer participation going forward.

Read the full story.

Strengthen the soil, strengthen the future of agri-food systems: The Economics of Healthy Soils for Sustainable Food Systems

Written by mcallejas on . Posted in Blogs.

Soil health is not just a medium for healthy crop production; it’s also a vital pillar to support sustainable food production and ultimately a nation’s 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  â‚č2.54 trillion annually—about 2% of its GDP—due 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 state’s vulnerability to drought (Kishore et al., 2014).

“CIMMYT 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 productivity”, said Alison Laing, CSISA project lead in India. “We are proud of the contribution we make alongside the Indian national systems to improving farmers’ livelihoods”, 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.

SIS’s 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 year’s World Soil Day theme, “Caring for Soils: Measure, Monitor, Manage,” 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:

  1. Government of India (2023). Contribution of agriculture in GDP. Department of Agriculture & Farmers Welfare. Accessed online.
  2. TERI (2018). Economics of Desertification, Land Degradation and Drought in India, Vol I. The Energy and Resources Institute. Accessed online.
  3. 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(503–521). https://doi.org/10.1007/s00704-016-1991-7.
  4. Singh, A. & Akhtar, Md. P. (2022). Drought-like situation in Bihar: Study and thought of sustainable strategy. IWRA (India) Journal, 11(1). Accessed online.
  5. 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 increasing frequency of drought challenges agriculture sustainability and livelihood of smallholder farmers

Written by Nima Chodon on . Posted in Blogs.

Crops struggling to grow in drought conditions, Bihar (Photo: Moben Ignatius/CIMMYT)

Agriculture is one of the sectors most affected by droughts, which can last for months or even years. In Bihar, where rain-fed agriculture is the primary source of livelihood for many, droughts can be devastating for rural farmers. The growing threat of climate change to crop production and farming practices calls for adopting alternative farming methods. In 2022-23, many districts in Bihar experienced drought conditions.

To better understand the impact of drought on crop production practices and farmers’ livelihoods, researchers from CSISA, a CIMMYT-led project, conducted a survey in Bihar during both the Kharif and Rabi seasons of 2022-23, the year of the drought. In the Kharif season, 518 farmers from 11 districts, 39 blocks, and 79 villages were surveyed, while 339 farmers participated in the Rabi season survey. The primary goal of this data collection was to assess the impact of drought on agricultural practices and provide evidence to guide policy and decision-making processes.

The survey collected data on 123 variables related to rice production, including land preparation, cropping patterns for 2022 and 2021, crop establishment methods, irrigation management, fertilizer application, and weed management. Farmers also shared their perceptions of how the drought had altered their rice production practices and affected their livelihoods compared to the previous year.

For many farmers, the experience of the drought was harsh. Magni Singh from East Champaran reflected on the challenges: “This year (2022), the drought hit us hard. I could only plant paddy on a small piece of land, but with no rain, there was not much harvest. Our fragmented land makes efficient irrigation almost impossible, and relying on rain feels like gambling with each season. Farming in these conditions is becoming increasingly unsustainable.”

Similarly, Shanti Devi of Banka shared her struggles: “The season started with drought, and we struggled to get water to the crops. By the time the rain came, it was too late – it came during the harvest and damaged the crop. I couldn’t afford fertilizers in time, which made things worse. Every year, it feels like we’re battling both nature and rising costs.”

This drought impact assessment by CSISA is also valuable for further research, particularly for comparing rice production practices between drought and non-drought years. Such comparisons can help researchers and policymakers develop effective drought mitigation strategies tailored to farmers’ needs.

An electric pump used to irrigate a paddy field in Buxar, Bihar (Photo: Nima Chodon/CIMMYT)

Read more about these livelihoods framework at Drought Impact Assessment in Bihar – August 2024https://acrobat.adobe.com/id/urn:aaid:sc:AP:66f00f6f-df17-4b13-9fee-2e0050de12ea 

For further research and analysis, primary data from the survey can be accessed at CIMMYT data verse

International recognition for CIMMYT: Honorary Doctorate Awarded to Bram Govaerts in India

Written by dmedina on . Posted in News.

Ceremony for the awarding of an honorary doctorate to Dr. Bram Govaerts of CIMMYT. (Photo: Richa Puri / BISA)

During a formal ceremony at Chandra Shekhar Azad University of Agriculture and Technology (CSA) in Kanpur, India, Bram Govaerts, CIMMYT Director General, was awarded the honorary degree of Doctor Honoris Causa. This prestigious honor not only recognizes Govaerts’ outstanding career but also highlights CIMMYT’s innovative and collaborative work on behalf of global food security, a joint effort that impacts millions of farmers and communities around the world.

Upon receiving the recognition, Govaerts dedicated it to the entire CIMMYT team, emphasizing, “This honor is a testament to the tireless work of my colleagues and collaborators at CIMMYT, who, through science and innovation, are contributing to food and nutrition security in key regions such as India and South Asia.” He further noted that this Honorary Doctorate symbolizes the global commitment of CIMMYT and Mexico in addressing the agricultural and climate challenges that threaten food production.

This recognition also underscores the strong agricultural partnership between Mexico and India, a collaboration that has saved millions of lives. This alliance dates back to the Green Revolution, led by Norman Borlaug, who introduced wheat varieties developed in Mexico that allowed India to double its agricultural output and avert a catastrophic famine in the 1960s.

Ceremony for the awarding of an honorary doctorate to Dr. Bram Govaerts of CIMMYT. (Photo: Richa Puri / BISA)

Today, CIMMYT continues to be a vital partner for India, developing maize and wheat varieties that are resilient to extreme climate conditions and promoting sustainable agricultural practices. The Borlaug Institute for South Asia (BISA), established in 2011 as a collaboration between CIMMYT and the Indian Council of Agricultural Research (ICAR), is a testament to the progress made through international collaboration. BISA has played a critical role in strengthening India’s agri-food systems, improving the livelihoods of millions of farmers, and contributing to environmental restoration in the region.

Beyond commercial ties, scientific collaboration between Mexico and India has been a cornerstone of agricultural improvements in both countries. India, the world’s second-most populous country, faces significant food production challenges, many of which mirror Mexico’s struggles, such as soil degradation and the effects of climate change. Thanks to CIMMYT’s collaboration with Indian institutions, critical advances have been made to address these challenges, paving the way for more resilient and sustainable agriculture.

The honorary doctorate awarded to Bram Govaerts not only recognizes his leadership but also the transformative impact of CIMMYT and its partners in improving the lives of millions of people around the world. Govaerts said, “This award reflects the strength of international scientific collaboration and the power of science to change the world.”

Malho Marndi finds way forward with Direct Seeded Rice (DSR) Technology

Written by Nima Chodon on . Posted in Blogs.

Photo: Nima Chodon/CIMMYT

Malho Marndi, a tribal farmer from Odisha, India, has been cultivating rice on her 10-acre farm for many years. However, worsening climate conditions and labor management challenges nearly pushed her to stop growing rice, except for personal consumption. The traditional method of transplanting seedlings into puddled fields was becoming unsustainable, and farmers across Odisha were experiencing yield declines that threatened their livelihoods.

To address these challenges, the Cereal Systems Initiative for South Asia (CSISA) project led by CIMMYT, introduced the Direct Seeded Rice (DSR) technology in select districts under the Odisha government’s DSR-Odisha project. DSR involves sowing rice seeds directly into the field, significantly reducing the need for labor and water—making it an attractive solution for smallholder farmers.

In the Kharif season of 2021, Malho participated in a DSR awareness program led by CSISA. Inspired by the success stories of fellow farmers, she decided to take a leap of faith and implement DSR on her own land.

The results were transformative. By adopting DSR on her 10-acre farm, along with an additional 9 acres she had leased, Malho saw her yields nearly double compared to the traditional methods she had previously used. Encouraged by these outcomes and supported by CSISA’s technical guidance, she expanded her cultivation to 40 leased acres and her original 10 acres in 2022. By 2023, she increased her leased land to 50 acres, bringing the total area under DSR to an impressive 60 acres.

Photo: CIMMYT

Malho’s success didn’t end there. She became a service provider, investing in a tractor and rotavator to assist other smallholder farmers in her community. In 2023 alone, her machinery was used to support more than 30 acres of land. Today, she empowers both men and women farmers by renting out her equipment and encouraging the wider adoption of DSR.

Through mechanization and improved crop management practices, Malho now independently manages her rice and maize cultivation. Confident about the future, she hopes to see more resource-constrained farmers across Odisha adopt DSR, improving their yields and enhancing their livelihoods.

Photo: Iftikar Wasim/CIMMYT

Context-dependent agricultural intensification pathways to increase rice production in India

Written by dmedina on . Posted in In the media.

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 — 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.

Read the full study.

Intercropping

Written by mcallejas on . Posted in Uncategorized.

The Intercropping project aims to identify options for smallholder farmers to sustainably intensify wide-row crop production through the addition of short-duration, high-value intercrop species and to help farmers increase their productivity, profitability and nutrition security while mitigating against climate change.

The focus is on intensification of wide-row planted crops: dry (rabi) season maize in Bangladesh, eastern India (Bihar and West Bengal states) and Bhutan, and sugarcane in central north India (Uttar Pradesh state). The primary focus is to sustainably improve cropping system productivity, however, the effects of wide-row, additive intercropping at the smallholder farm level will be considered, including potential food and nutrition benefits for the household.

There are many potential benefits of wide-row, additive intercropping, beyond increased cropping system productivity and profitability: water-, labor- and energy-use efficiencies; improved nutrition and food security for rural households; empowerment for women; and (over the longer term) increased soil health.

Little research has been conducted to date into wide-row, additive intercropping (as distinct from traditional replacement intercropping) in South Asian agroecologies. To successfully and sustainably integrate wide-row, additive intercropping into farmers’ cropping systems a range of challenges must be resolved, including optimal agronomic management and crop geometry, household- and farm-scale implications, and potential off-farm bottlenecks.

This project aims to identify practical methods to overcome these challenges for farming households in Bangladesh, Bhutan and India. Focusing on existing wide-row field crop production systems, the project aims to enable farmers to increase their cropping system productivity sustainably and in a manner that requires relatively few additional inputs.

Project activities and expected outcomes:

  • Evaluating farming households’ initial perspectives on wide-row, additive intercropping.
  • Conducting on station replicated field trials into wide-row, additive intercropping, focusing on those aspects of agronomic research difficult or unethical to undertake on farms.
  • Conducting on farm replicated field trials into wide-row, additive intercropping.
  • Determining how wide-row, additive intercropping could empower women. Quantify the long-term benefits, risks and trade-offs of wide-row, additive intercropping.
  • Describing key value/supply chains for wide-row, additive intercropping. Determine pathways to scale research to maximize impact.
  • Quantifying changes in household dry season nutrition for households representative of key typologies in each agroecological zone.

Linking sustainable agricultural methods

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

While agricultural food systems feed the world, they also account for nearly a third of the world’s greenhouse gas (GHG) emissions. Reducing the negative environmental footprint of agrifood systems while at the same time maintaining or increasing yields is one of the most important endeavors in the world’s efforts to combat climate change.

One promising mechanism is carbon credits, a set of sustainable agricultural practices designed to enhance the soil’s ability to capture carbon and decrease the amount of GHG’s released into the atmosphere.

Farmers generate these carbon credits based on their reduction of carbon released and then sell these credits in the voluntary carbon market, addressing the critical concern of sustainably transforming agricultural systems without harming farmers’ livelihoods.

Two is better than one

Conservation Agriculture (CA) is a system that involves minimum soil disturbance, crop residue retention, and crop diversification, among other agricultural practices. Its potential to mitigate threats from climate change while increasing yields has made it increasingly popular.

Using remote sensing data and surveys with farmers in the Indian states of Bihar and Punjab, four CIMMYT researchers quantified the effect on farmer’s incomes by combining CA methods with carbon credits. Their findings were published in the April 22, 2024, issue of Scientific Reports.

Previous CIMMYT research has shown that implementing three CA practices: efficient fertilizer use, zero-tillage, and improved rice-water management could achieve more than 50% of India’s potential GHG reductions, amounting to 85.5 million tons of CO2.

“Successfully implemented carbon credit projects could reward farmers when they adopt and continue CA practices,” said Adeeth Cariappa, lead author and environmental and resource economist at CIMMYT. “This creates a win–win scenario for all stakeholders, including farmers, carbon credit businesses, corporate customers, the government, and the entire economy.”

Farmers would enjoy an additional income source, private sectors would engage in employment-generating activities, the government would realize cost savings, and economic growth would be stimulated through the demand generated by these activities.

Less carbon and more income

The researchers found by adopting CA practices in wheat production season, farmers can reduce GHG emissions by 1.23 and 1.97 tons of CO2 per hectare of land in Bihar and Punjab States, respectively.

The researchers determined that CA practices, when combined with carbon credits, could boost farmer income by US $18 per hectare in Bihar and US $30 per hectare in Punjab. In Punjab, however, there is a ban on burning agricultural residue, which reduces potential earnings from carbon markets to US $16 per hectare.

“More farmers engaging CA methods is an overall positive for the environment,” said Cariappa. “But convincing individual farmers can be a struggle. By showing them that carbon credits are another potential source of income, along with increased yields, the case for CA is that much stronger.”

While the potential benefits are significant, there are challenges to linking CA and carbon credits.

“To achieve these potential benefits, carbon credit prices must rise, and projects must be carefully planned, designed, monitored, and implemented,” said Cariappa. “This includes selecting the right interventions and project areas, engaging with farmers effectively, and ensuring robust monitoring and implementation mechanisms.”

Eight-year study in India by CGIAR and ICAR scientists suggests adoption of Conservation Agriculture can boost yields and manage an increasing carbon footprint

Written by Nima Chodon on . Posted in Publications.

Twenty-twenty four is set to become one of the hottest years on record. Warmer temperatures are destabilizing ecosystems, threatening human life, and weakening our food systems. On Earth Overshoot Day, CIMMYT calls for increased attention to the interplay between environmental health and efficient, abundant food production through sustainable practices.

Food systems are one of the top contributors to greenhouse gas (GHG) emissions, accounting for one-third of all human-caused GHG emissions. While contributing to climate change, food production is also sorely impacted by it, undermining agrarian livelihoods and the ability to feed an increasing global population. Extreme and unpredictable weather is causing economic hardship, food and nutrition insecurity, and use of environmentally harmful practices.

In the Western Indo-Gangetic Plains of India, rice and wheat are the dominant staple crops, grown yearly in rotations covering more than 13 million hectares. But conventional tillage-based methods have been unable to increase yields. Some of these traditional methods based on intensive tillage have harmed the soil, exhausted aquifers, and increased GHG emissions, without raising crop yields. CGIAR soil and climate scientists and agronomists have partnered to find solutions that help increase rice and wheat production, while minimizing harmful environmental effects.

One of the CA-based practice research fields at ICAR-CSSRI. (Photo: Nima Chodon/CIMMYT)

At CIMMYT, we interviewed a group of CGIAR scientists who recently published a long-term study on sustainable intensification in the Western Indo-Gangetic Plains. Their work, conducted at the Central Soil and Salinity Research Institute (ICAR-CSSRI) in Karnal, India, demonstrates how integrating Conservation Agriculture (CA)-based principles into cropping systems can support climate-resilient and sustainable food systems.

“Today, agriculture faces many challenges, such as increasing input costs to maintain yield in the face of climate change and ensuring the sustainability of agricultural land,” said Mahesh Gathala, senior scientist at CIMMYT.

He mentioned that the collaborative research spanned over eight years, covering various crops and cropping cycles, and studying seven scenarios representing different farming practices. One scenario was based on farmers’ existing practices, while the other six involved combining and integrating the agronomic management practices and crop diversification options based on CA principles. The team collected data on yield, profitability, soil health, global warming potential, and fertilizer use, to name critical factors.

Gathala highlighted, “The findings are consistent with our previous research conclusions, while reinforcing the significant compounding impact of Conservation Agriculture-based cropping practices in the region, in the long-run.”

According to M.L. Jat, a former CIMMYT scientist who is global director for ICRISAT’s Resilient Farm and Food Systems Program, the CA-based measures that emerged from this research are applicable in much of the Western Indo-Gangetic Plains and beyond.

“Most of our research trials over some 2-5 years have provided substantial evidence in favor of Conservation Agriculture-based cropping diversification and sustainable intensification,” Jat said. “However, this study is one of very few long-term, collaborative research trials that provide strong evidence for policy decisions on resilient, climate-smart cropping system optimization to boost yields and nutrition, while improving soil health and fighting climate change.”

Other lead authors of the publication, Timothy Krupnik, principal scientist at CIMMYT and CGIAR South Asia, and Tek Sapkota, the Climate Change Science lead at CIMMYT, provided further explanation of important lessons from this eight-year study.

Two CA-based practice research scenarios at ICAR-CSSRI. (Photo: Nima Chodon/CIMMYT)
How does CA contribute to the sustainable and conscious use of natural resources? In what ways could CA be framed to governments to develop policies that do a better job of feeding us nutritious food while contributing to climate change adaptation and mitigation?

Tek Sapkota: Conservation Agriculture promotes the production of nutritious, diversified crops, sustainable yield improvements, climate change adaptation, economic benefits, and environmental protection. Governments can support these initiatives through financial incentives, subsidies, investment in research and extension services, and the development of supporting infrastructure and market access. This support further enables farmers to implement and benefit from sustainable agricultural practices.

CIMMYT and CGIAR-led projects in South Asia, like CSISA/SRFSI/TAFFSA, have already recorded some wins for CA implementation. What are some immediate implications of this study on CIMMYT’s ability to deliver this knowledge to more smallholders in the region?

Timothy Krupnik: The ICAR-CIMMYT partnership establishes long-term experiments, or living labs, across diverse ecologies to build trust among smallholder farmers, extension workers, and stakeholders. These initiatives aim to demonstrate CA’s benefits, as part of sustainable intensification. The science-based evidence generated will be co-owned by partners, through their extension networks, and shared with farm communities to highlight CA’s advantages. Additionally, the study supports reducing carbon footprints, contributing to climate change mitigation and sustainable agricultural practices and potentially used by carbon market players to disseminate CA.

Apart from climate resilience, could you explain what are the economic benefits of diversification in the rice-wheat dominant systems?

Tek Sapkota: Diversifying away from rice-wheat cropping systems provides significant economic benefits beyond climate resilience. It enhances income stability, improves resource use efficiency, maintains soil health, reduces production costs (such as irrigation expenses and water usage), and opens up new market opportunities. Diversification contributes to the creation of more sustainable and profitable farming systems.

How can CGIAR and national agricultural research and extension systems promote more widespread adoption of these technologies by farmers in South Asia and beyond?

Tek Sapkota: By establishing a multi-stakeholder platform for learning, knowledge sharing, and developing adoption pathways, CGIAR Research Centers could work together with national partners to create programs that support capacity building and knowledge transfer. Another crucial step would be to collaboratively adapt and customize the technology to local production conditions ensuring smooth implementation at the grassroots level. Additionally, it is important to encourage innovations in policies, markets, institutions and financial mechanisms to facilitate scaling.

Read excerpts of the full journal article: Enhancing productivity, soil health, and reducing global warming potential through diverse conservation agriculture cropping systems in India’s Western Indo-Gangetic Plains

SKUAST-K Maize Improvement Programme: Transforming Challenges into Bountiful Harvests

Written by dmedina on . Posted in In the media.

The SKUAST-K Maize Improvement Programme, in collaboration with CIMMYT, is making significant advancements in maize agriculture in Jammu and Kashmir. By developing resilient maize varieties and leveraging cutting-edge research, the programme addresses key challenges such as poor soil nutrition and erratic rainfall. This partnership has not only enhanced maize productivity and climate resilience but also secured substantial funding and facilitated the release of landmark varieties, ultimately contributing to a sustainable maize-based economy in the region.

Read the full story.

Climate-proofing India’s daily bread: The race for resilient wheat

Written by dmedina on . Posted in In the media.

CIMMYT collaborates with Indian research institutions like IIWBR to develop climate-resilient wheat varieties, supplying essential genetic materials and leveraging global research initiatives, advanced breeding techniques, and technological tools. This partnership accelerates the creation and distribution of resilient crops, supporting local scientists and smallholder farmers through training, capacity-building programs, and knowledge sharing to ensure sustainable agriculture and enhanced food security in the face of climate change.

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

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

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

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

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

Extreme weather events

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

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

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

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

Maize designed to thrive in extreme weather conditions

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

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

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

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

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

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

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