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funder_partner: - Indian Council of Agricultural Research

Advancing conservation agriculture

A practical demonstration at Jabalpur. (Photo: CIMMYT)

Agriculture feeds the world. Yet traditional cycles of ploughing, planting, and harvesting crop and biomass products is inefficient of labor and other scarce resources and depletes soil health while emitting greenhouse gases that contribute to climate change.

One effort to ameliorate the negative effects of farming is a set of practices referred to as conservation agriculture (CA), based on the principles of minimal mechanical soil disturbance, permanent soil cover with plant material, and crop diversification.

To deliver advanced, high-level instruction on current innovative science around important aspects of cropping and farming system management to scientists from India, Bangladesh, Egypt, and Morocco, the 12th Advanced Conservation Agriculture Course hosted by the Indian Council of Agricultural Research (ICAR), CIMMYT, and the Borlaug Institute for South Asia (BISA) took place in India from December 10 to 24, 2023.

SK Chaudhari, deputy director general for Natural Resource Management, ICAR; HS Jat, director of the Indian Council of Agricultural Research-Indian Institute of Maize Research (ICAR-IIMR); Arun Joshi, country representative for India and BISA managing director, CIMMYT-India; Mahesh K. Gathala, senior systems agronomist and science lead, CIMMYT-Bangladesh; and Alison Laing, agroecologist, CIMMYT-Bangladesh, all attended the opening ceremony at the National Agricultural Science Complex in New Delhi, India.

This CA course integrated scientific advancements and multidisciplinary techniques to sustainably develop agricultural systems, restore natural resources, and improve climate resilience in agriculture throughout Asia and North Africa. It was held at leading research centers throughout India.

SK Chaudhari welcomed delegates to the course and stressed its practical character and efficacy in promoting CA management innovations, as evidenced by the significant achievements and international reputations of many former attendees and resource personnel.

“As climatic variability and change increase, the need to manage agronomic risks grows, and CA is an effective tool for farmers and scientists in both irrigated and rainfed systems,” said Chaudhari.

Twenty rising scientists from such fields as agronomy, soil science, plant protection, agricultural engineering, plant breeding, and extension, took part in the workshop where they gained a better understanding of all aspects of conservation agricultural methods in rainfed and irrigated ecosystems, as well as exposure to wide networks with prominent international scientists. Organizers prioritized the inclusion of female scientists, who made up 40% of attendees.

The workshop empowered participants to act as conservation agriculture ambassadors and champions of modern, novel agronomic methods when they return to their home institutions.

Rajbir Singh, ICAR assistant director general for Natural Resource Management, and ML Jat, global research program director of Resilient Farm and Food Systems, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) provided keynote addresses at the closing ceremony, held at the ICAR-Central Soil Salinity Research Institute in Karnal, Haryana, India.

Advanced training on conservation agriculture focuses on creating sustainable agronomic systems

CIMMYT-BISA-ICAR organized a two-week training program on conservation agriculture (CA) to demonstrate how CA can be a sustainable farming method and an effective tool for farmers and scientists in both irrigated and rainfed systems to manage agrifood system risks.

Participants engage in various activities during the two-week course. (Photo: Richa Sharma Puri/CIMMYT)

The training was jointly conducted by CIMMYT in collaboration with the Borlaug Institute for South Asia (BISA) and the Indian Council of Agricultural Research – Central Soil Salinity Research Institute (ICAR-CSSRI). It was held at the BISA research facilities in Jabalpur and Ludhiana, India, and ICAR-CSSRI in Karnal, India, from 9 December to 24 December 2023.

Creating resilient agrifood systems

Conservation agriculture is an ecosystem approach to agricultural land management based on three interrelated principles: minimal soil disturbance, permanent soil cover, and crop diversification. It helps farmers boost yields, regenerate natural resources, reduce cultivation costs, and create resilient production systems. This helps protect the environment and enhance livelihoods of rural populations, especially in the Global South.

In this region, the rural population depends on natural resources – land, freshwater, and coastal fisheries – for survival. However, the depletion of soil fertility, scarcity of water resources, exacerbated by environmental pollution and climate change-induced stresses, prove challenging to irrigated and dryland agriculture production systems. This puts agrifood systems in South Asia and Africa under tremendous pressure.

Despite the benefits, farmers face significant barriers to adopting CA practices. Lack of knowledge and skills, limited access to appropriate seeds and equipment, lack of policy support, under-developed value chains, and non-acceptance of the fact that CA can yield better results and long-term benefits often prevents farmers from adopting CA practices. Hence, capacity development is vital for the adaptation and scaling of CA-based technologies among smallholder farmers.

To cater to these needs, an Advanced Course on Conservation Agriculture in Asia – a Gateway for Sustainable and Climate Resilient Agrifood Systems was launched in 2010. Later, it was expanded to North Africa. The course links scientific advances and multidisciplinary approaches for upgrading the skills of participants for sustainable intensification and diversification of production systems, enhancing resilience, and conserving natural resources. Since its inception, this training series has directly benefited about 220 researchers, development personnel, and policymakers from 20 countries.

The 12th edition of the training in India saw mid-career researchers and development officers from Morocco, Egypt, Bangladesh, and India participate. Approximately 40% of the attendees were women.

Highlights from the India training program 

The inaugural session commenced on 9 December 2023 at the NASC Complex in New Delhi, India. Present at the opening ceremony were chief guest S.K. Chaudhari, deputy director general – Natural Resource Management, ICAR; Arun Joshi, CIMMYT regional representative and managing director of BISA; and Mahesh K Gathala, course coordinator, and Alison Laing, agroecologist from CIMMYT in Bangladesh.

During the welcome address, Joshi informed that CIMMYT and BISA are committed to capacity development of national partners around the world. Chaudhari emphasized the effectiveness in facilitating innovations in CA management. “Under increasing climate variability and change, the need to manage agronomic risks is even more significant and CA is an effective tool for farmers and scientists in irrigated and rainfed systems,” he said.

Participants were introduced to the genesis, background, and objectives of the course by Gathala. Resource persons across diverse disciplines informed the participants about innovative and cutting-edge research in all aspects of CA in both irrigated and dryland cropping systems, including advanced agronomy; mechanization; farm, soil, and water interactions; plant protection, health and crop breeding; climate resilience; farming systems simulation and analysis; agribusiness management; women’s empowerment and gender equity; and agricultural extension and out-scaling. Participants also gained practical knowledge and skills at the BISA research stations where extensive trainings were conducted under the guidance of Ravi Gopal Singh, Raj Kumar, and Lalit Sharma, course coordinators. They organized a series of sessions, along with the hands-on training, at the CA experiment farm in the BISA research facilities. Participants also toured 500 acres of farms at each of the locations. They visited farm facilities such as wheat research trials, molecular laboratory, precision nitrogen nutrition facility, seed processing unit, and farm machinery section.

Workshop participants conduct activities with farmers in the field. (Photo: Richa Sharma Puri/CIMMYT)

The group also visited ICAR-CSSRI facilities in Karnal where R.K. Yadav, director, ICAR- CSSRI, welcomed the participants and highlighted the international and national collaboration activities at CSSRI and how long-term experiments on CA are managing and generating science-based evidence to inform policy and capacity building.

Special visits were organized to farm machinery manufacturers in the region to facilitate industry-participant interactions. Participants visited the Landforce factory at Amargarh, a leading manufacturer of all ranges of farm equipment – from seeding to harvesting and processing. This firm is equipped with the latest manufacturing facilities and techniques such as robotic welding, assembling and automated paint. Later, the group visited the National Agroindustry at Ludhiana, a top manufacturer of planters including bed planters, zero till drills, Happy Seeders, pneumatic and precise planters.

Finally, participants were taken to the farmer fields to interact with the farmers and observe the impact first-hand. They met with a progressive farmer group at Karnal who shared their experiences of practicing CA for the last few years. Post these visits and learning sessions, a closing ceremony was organized at CSSRI at Karnal which was chaired by R.K. Yadav and attended by special guests Rajbir Singh, ADG-ICAR and ML Jat, global director RFFS, ICRISAT. “The session on CA machinery was very helpful and carbon credit was an essential part of our learning. We also got an opportunity to exchange our ideas and experiences with researchers from Morocco, Egypt, and Bangladesh. We sincerely thank the organizers for making us confident and technically smart CA personnels,” said a participant from India.

On-farm-Maize Select

The On-farm-Maize Select project will pilot a new genomics-driven selection method based on on-farm performance of Stage 1 maize breeding materials that is expected to deliver increased rates of genetic gain to the farmers through:

  • More accurate selection for the conditions of small-scale producers in Sub-Saharan Africa (SSA), especially women and the poorest farmers, who often apply fewer inputs.
  • Improved sampling of the diversity of on-farm conditions across the entire target population of environments (TPE).
  • Improved understanding of the diversity of socio-economic factors, agronomic management (especially by women), and environmental on-farm conditions across the TPE.
  • Genomic-assisted rapid recycling of parents (population improvement) to reduce breeding cycle time.
  • Improved social inclusion in breeding processes, leading to greater gender responsiveness and wider appeal of breeding outputs.

The hypothesis is that generating genomic estimated breeding values (GEBVs) based on on-farm phenotyping will lead both to increased selection accuracy for performance under farmer management, including challenging conditions that women and the poorest farmers face, and enable rapid cycling of parents by reducing the number of years of testing before new crosses are made. This hypothesis will be initially tested by estimating expected genetic gain on-station and on-farm based on the genetic correlation between on-station and gender-disaggregated on-farm performance of the same set of genotypes, as well as the repeatability of selection on-station versus on-farm. The value of on-farm versus on-station testing for estimating GEBVs for parent selection and early-stage advancement will be confirmed in two selected CIMMYT maize breeding pipelines (one each in eastern and southern Africa – EA-PP1 and SA-PP1) by comparing the performance on-farm of a sample of Stage 1 breeding lines from the second cycle of on-farm vs on-station selection. The efficacy and costs of undertaking on-farm genomic selection versus on-station selection at Stage 1 of the two selected breeding pipelines will also be evaluated.

Key Outputs

  • The genetic correlation between, and accuracy of estimation of, on-farm and on-station breeding values will be measured in terms of ability to predict performance under farmer management. This will enable comparison of the relative efficiency of direct selection on-farm versus indirect selection on-station. We expect that increased on-farm genetic gains will be achieved if the genetic correlation between on-farm and on-station performance is 0.8 or less.
  • Elite breeding populations improved for on-farm performance will be generated, and products extracted from them will be compared on-farm with those selected the same founder populations using conventional on-station selection (comparison of the products of the pipelines will not be possible until the second project phase, if approved).
  • Separate GEBVs generated for lines under the management of male and female farmers, with genetic correlations estimated to ensure that performance on female-managed farms is adequately weighted in selection indices.
  • Genomic-assisted on-farm sparse testing network, experimental design and capacity developed.
  • Improved representativeness of results due to enhanced gender and social inclusion approaches in the on-farm trial design.

Expected Outcomes

  • Greater rates of genetic gain delivered on-farm through more extensive sampling of TPEs
  • Improved accuracy of selection based on performance in farmers’ fields in the TPE.
  • Incorporation of farmer-preferred traits in selection decisions supports faster replacement of older hybrids with newer products.