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funder_partner: University of Minnesota (UMN)

Scientists convene in Kenya for intensive wheat disease training

An international cohort of scientists representing 12 countries gathered at the Kenya Agricultural and Livestock Research Organization (KALRO) station in Njoro for a comprehensive training course aimed at honing their expertise in wheat rust pathology.

The two-week program “Enhancing Wheat Disease Early Warning Systems, Germplasm Evaluation, Selection, and Tools for Improving Wheat Breeding Pipelines,” was a collaborative effort between CIMMYT and Cornell University and supported by the Wheat Disease Early Warning Advisory System (DEWAS) and Accelerating Genetic Gains in Maize and Wheat projects.

With a mission to bolster the capabilities of National Agricultural Research Systems (NARS), the training course attracted more than 30 participants from diverse corners of the globe.

Maricelis Acevedo, a research professor of global development at Cornell and the associate director of Wheat DEWAS, underscored the initiative’s significance. “This is all about training a new generation of scientists to be at the forefront of efforts to prevent wheat pathogens epidemics and increase food security all over the globe,” Acevedo said.

First initiated in 2008 through the Borlaug Global Rust Initiative, these training programs in Kenya have played a vital role in equipping scientists worldwide with the most up-to-date knowledge on rust pathogens. The initial twelve training sessions received support from the BGRI under the auspices of the Durable Rust Resistance in Wheat and Delivering Genetic Gain in Wheat projects.

This year’s training aims to prepare global scientists to protect against disease outbreaks that threaten wheat productivity in East Africa and South Asia. The course encompassed a wide array of practical exercises and theoretical sessions designed to enhance the participants’ knowledge in pathogen surveillance, diagnostics, modeling, data management, early warning assessments, and open science publishing. Presentations were made by DEWAS partners from the John Innes Centre, Aarhus University, the University of Cambridge and University of Minnesota.

(Photo: Borlaug Global Rust Initiative)

The course provided practical, hands-on experience in selecting and evaluating wheat breeding germplasm, race analysis and greenhouse screening experiments to enhance knowledge of rust diseases, according to Sridhar Bhavani, training coordinator for the course.

“This comprehensive training program encompasses diverse aspects of wheat research, including disease monitoring, data management, epidemiological models, and rapid diagnostics to establish a scalable and sustainable early warning system for critical wheat diseases such as rusts, fusarium, and wheat blast,” said Bhavani, wheat improvement lead for East Africa at CIMMYT and head of wheat rust pathology and molecular genetic in CIMMYT’s Global Wheat program.

An integral part of the program, Acevedo said, was the hands-on training on wheat pathogen survey and sample collection at KALRO.  The scientists utilized the international wheat screening facility at KALRO as a training ground for hot-spot screening for rust diseases resistance.

Daisy Kwamboka, an associate researcher at PlantVillage in Kenya, said the program provided younger scientists with essential knowledge and mentoring.

“I found the practical sessions particularly fascinating, and I can now confidently perform inoculations and rust scoring on my own,” said Kwamboka said, who added that she also learned how to organize experimental designs and the basics of R language for data analysis.

DEWAS research leaders Dave Hodson, Bhavani and Acevedo conducted workshops and presentations along with leading wheat rust experts. Presenters included Robert Park and Davinder Singh from the University of Sydney; Diane Sauders from the John Innes Centre; Clay Sneller from Ohio State University; Pablo Olivera from the University of Minnesota; Cyrus Kimani, Zennah Kosgey and Godwin Macharia from KALRO; Leo Crespo, Susanne Dreisigacker, Keith Gardner, Velu Govindan, Itria Ibba, Arun Joshi, Naeela Qureshi, Pawan Kumar Singh and Paolo Vitale from CIMMYT; Chris Gilligan and Jake Smith from the University of Cambridge; and Jens GrÞnbech Hansen and Mogens S. HovmÞller from the Global Rust Reference Center at Aarhus University.

“I thoroughly enjoyed the knowledge imparted by the invited experts, along with the incredible care they have shown us throughout this wonderful training.”

Narain Dhar, Borlaug Institute for South Asia 

For participants, the course offered a crucial platform for international collaboration, a strong commitment to knowledge sharing, and its significant contribution to global food security.

“The dedication of the trainers truly brought the training to life, making it incredibly understandable,” said Narain Dhar, research fellow at the Borlaug Institute for South Asia.

The event not only facilitated learning but also fostered connections among scientists from different parts of the world. These newfound connections hold the promise of sparking innovative collaborations and research endeavors that could further advance the field of wheat pathology.

Wheat pathogen surveillance system set to expand through new investment

One of the world’s largest crop pathogen surveillance systems is set to expand its analytic and knowledge systems capacity to protect wheat productivity in food vulnerable areas of East Africa and South Asia.

Researchers announced the Wheat Disease Early Warning Advisory System (Wheat DEWAS), funded through a $7.3 million grant from the Bill & Melinda Gates Foundation and the United Kingdom’s Foreign, Commonwealth & Development Office, to enhance crop resilience to wheat diseases.

The project is led by David Hodson, principal scientist at CIMMYT, and Maricelis Acevedo, research professor of global development and plant pathology at Cornell University’s College of Agriculture and Life Sciences. This initiative brings together research expertise from 23 research and academic organizations from sub-Saharan Africa, South Asia, Europe, the United States and Mexico.

Wheat DEWAS aims to be an open and scalable system capable of tracking important pathogen strains. The system builds on existing capabilities developed by the research team to provide near-real-time model-based risk forecasts and resulting in accurate, timely and actionable advice to farmers. As plant pathogens continue to evolve and threaten global food production, the system strengthens the capacity of countries to respond in a proactive manner to transboundary wheat diseases.

The system focuses on the two major fungal pathogens of wheat known as rust and blast diseases. Rust diseases, named for a rust-like appearance on infected plants, are hyper-variable and can significantly reduce crop yields when they attack. The fungus releases trillions of spores that can ride wind currents across national borders and continents and spread devastating epidemics quickly over vast areas.

Wheat blast, caused by the fungus Magnaporte oryzae Tritici, is an increasing threat to wheat production, following detection in both Bangladesh and Zambia. The fungus spreads over short distances and through the planting of infected seeds. Grains of infected plants shrivel within a week of first symptoms, providing little time for farmers to take preventative actions. Most wheat grown in the world has limited resistance to wheat blast.

“New wheat pathogen variants are constantly evolving and are spreading rapidly on a global scale,” said Hodson, principal investigator for Wheat DEWAS. “Complete crop losses in some of the most food vulnerable areas of the world are possible under favorable epidemiological conditions. Vigilance coupled with pathogen-informed breeding strategies are essential to prevent wheat disease epidemics. Improved monitoring, early warning and advisory approaches are an important component for safeguarding food supplies.”

Previous long-term investments in rust pathogen surveillance, modelling, and diagnostics built one of the largest operational global surveillance and monitoring system for any crop disease. The research permitted the development of functioning prototypes of advanced early warning advisory systems (EWAS) in East Africa and South Asia. Wheat DEWAS seeks to improve on that foundation to build a scalable, integrated, and sustainable solution that can provide improved advanced timely warning of vulnerability to emerging and migrating wheat diseases.

“The impact of these diseases is greatest on small-scale producers, negatively affecting livelihoods, income, and food security,” Acevedo said. “Ultimately, with this project we aim to maximize opportunities for smallholder farmers to benefit from hyper-local analytic and knowledge systems to protect wheat productivity.”

The system has already proven successful, contributing to prevention of a potential rust outbreak in Ethiopia in 2021. At that time, the early warning and global monitoring detected a new yellow rust strain with high epidemic potential. Risk mapping and real-time early forecasting identified the risk and allowed a timely and effective response by farmers and officials. That growing season ended up being a production record-breaker for Ethiopian wheat farmers.

While wheat is the major focus of the system, pathogens with similar biology and dispersal modes exist for all major crops. Discoveries made in the wheat system could provide essential infrastructure, methods for data collection and analysis to aid interventions that will be relevant to other crops.

Wheat Disease Early Warning Advisory System (DEWAS)

The Wheat Disease Early Warning Advisory System (Wheat DEWAS) project is bringing new analytic and knowledge systems capacity to one of the world’s largest and most advanced crop pathogen surveillance systems. With Wheat DEWAS, researchers are building an open and scalable system capable of preventing disease outbreaks from novel pathogen strains that threaten wheat productivity in food vulnerable areas of East Africa and South Asia.

The system builds from capabilities developed previously by multi-institutional research teams funded through long-term investments in rust pathogen surveillance, modelling, and diagnostics. Once fully operationalized, the project aims to provide near-real-time, model-based risk forecasts for governments. The result: accurate, timely and actionable advice for farmers to respond proactively to migrating wheat diseases.

The Challenge

Farmers growing wheat face pathogen pressures from a range of sources. Two of the most damaging are the fungal diseases known as rust and blast. Rust is a chronic issue for farmers in all parts of the world. A study in 2015 estimated that the three rust diseases — stem, stripe and leaf — destroyed more than 15 million tons of wheat at a cost of nearly $3 billion worldwide. Wheat blast is an increasing threat to wheat production and has been detected in both Bangladesh and Zambia. Each of these diseases can destroy entire harvests without warning, wiping out critical income and food security for resource-poor farmers in vulnerable areas.

The Response

Weather forecasts and early-warning alerts are modern technologies that people rely on for actionable information in the case of severe weather. Now imagine a system that lets farmers know in advance when dangerous conditions will threaten their crop in the field. Wheat DEWAS aims to do just that through a scalable, integrated, and sustainable global surveillance and monitoring system for wheat.

Wheat DEWAS brings together research expertise from 23 research and academic organizations from sub-Saharan Africa, South Asia, Europe, the United States and Mexico.

Together, the researchers are focused on six interlinked work packages: 

Work package Lead Objectives
Data Management Aarhus University; Global Rust Reference Center
  • Maintain, strengthen and expand the functionality of the existing Wheat Rust Toolbox data management system
  • Create new modules within the Toolbox to include wheat blast and relevant wheat host information
  • Consolidate and integrate datasets from all the participating wheat rust diagnostic labs
  • Develop an API for the two-way exchange of data between the Toolbox and the Delphi data stack
  • Develop an API for direct access to quality-controlled surveillance data as inputs for forecast models
  • Ensure fair access to data
Epidemiological Models Cambridge University
  • Maintain operational deployment and extend geographical range
  • Productionalize code for long-term sustainability
  • Multiple input sources (expert, crowd, media)
  • Continue model validation
  • Ensure flexibility for management scenario testing
  • Extend framework for wheat blast
Surveillance (host + pathogen) CIMMYT
  • Undertake near-real-time, standardized surveys and sampling in the target regions
  • Expand the coverage and frequency of field surveillance
  • Implement fully electronic field surveillance that permits near real-time data gathering
  • Target surveillance and diagnostic sampling to validate model predictions
  • Map vulnerability of the host landscape
Diagnostics John Innes Centre
  • Strengthen existing diagnostic network in target regions & track changes & movement
  • Develop & integrate new diagnostic methodology for wheat rusts & blast
  • Align national diagnostic results to provide a regional & global context
  • Enhance national capacity for wheat rust & blast diagnostics
Information Dissemination and Visualization Tools PlantVillage; Penn State
  • Create a suite of information layers and visualization products that are automatically derived from the quality-controlled data management system and delivered to end users in a timely manner
  • Deliver near real time for national partners to develop reliable and actionable advisory and alert information to extension workers, farmers and policy makers
National Partner Capacity Building Cornell University
  • Strengthening National partner capacity on pathogen surveillance, diagnostics, modeling, data management, early warning assessment, and open science publishing

 

Wheat DEWAS partners 

Academic organizations: Aarhus University / Global Rust Reference Center; Bangabandhu Sheikh Mujibur Rahman Agricultural University; Cornell University / School of Integrative Plant Science, Plant Pathology & Plant-Microbe Biology Section; Hazara University; Penn State University / PlantVillage; University of Cambridge; University of Minnesota

 Research organizations: Bangladesh Wheat and Maize Research Institute (BWMRI); CIMMYT; Department of Agricultural Extension (DAE), Bangladesh; Ethiopian Agricultural Transformation Institute (ATI); Ethiopian Institute of Agricultural Research (EIAR); ICARDA; John Innes Centre (JIC); Kenya Agricultural and Livestock Research Organization (KALRO); National Plant Protection Centre (NPPC), Bhutan; Nepal Agricultural Research Council (NARC); Pakistan Agricultural Research Council (PARC); UK Met Office; Tanzania Agricultural Research Institute (TARI); The Sainsbury Laboratory (TSL) / GetGenome; U.S. Department of Agriculture, Agricultural Research Service; Zambia Agricultural Research Institute (ZARI)

CIMMYT leads innovation sprint to deliver results to farmers rapidly

Smallholder farmers, the backbone of food systems around the world, are already facing negative impacts because of climate change. Time to adapt climate mitigation strategies is not a luxury they have. With that in mind, the Agriculture Innovation Mission for Climate (AIM4C) facilitates innovation sprints designed to leverage existing development activities to create a series of innovations in an expedited timeframe.

At the UN COP27 in Egypt, AIM4C announced its newest round of innovation sprints, including one led by the International Center for Maize and Wheat Improvement (CIMMYT) to enable smallholder farmers to achieve efficient and effective nitrogen fertilizer management. From 2022 to 2025, this sprint will steer US $90 million towards empowering small-scale producers in Africa (Kenya, Malawi, Morocco, Tanzania, and Zimbabwe), Asia (China, India, Laos and Pakistan), and Latin America (Guatemala and Mexico).

“When we talk to farmers, they tell us they want validated farming practices tailored to their specific conditions to achieve greater productivity and increase their climate resilience,” said Sieg Snapp, CIMMYT Sustainable Agrifood Systems (SAS) program director who is coordinating the sprint. “This sprint will help deliver those things rapidly by focusing on bolstering organic carbon in soil and lowering nitrous oxide emissions.”

Nitrogen in China

Working with the Chinese Academy of Agricultural Sciences (CAAS), the sprint will facilitate the development of improved versions of green manure crops, which are grown specifically for building and maintaining soil fertility and structures which are incorporated back into the soil, either directly, or after removal and composting. Green manure can significantly reduce the use of nitrogen-based fertilizers, which prime climate culprits.

“There are already green manure systems in place in China,” said Weidong Cao from CAAS, “but our efforts will integrate all the work being done to establish a framework for developing new green manure crops aid in their deployment across China.”

Triple wins in Kenya

The Kenya Climate Smart Climate Project, active since 2017, is increasing agricultural productivity and building resilience to climate change risks in the targeted smallholder farming and pastoral communities. The innovation sprint will help rapidly achieve three wins in technology development and dissemination, cutting-edge innovations, and developing sets of management practices all designed to increase productive, adaption of climate smart tech and methods, and reduce greenhouse gas (GHG) emissions.

Agricultural innovations in Pakistan

The Agricultural Innovation Program (AIP), a multi-disciplinary and multi-sectoral project funded by USAID, led by CIMMYT, and active in Pakistan since 2015, fosters the emergence of a dynamic, responsive, and competitive system of science and innovation that is ‘owned’ by Pakistan and catalyzes equitable growth in agricultural production, productivity, and value.

“From its beginning, AIP has been dedicated to building partnerships with local organizations and, smallholder farmers throughout Pakistan, which is very much in line with the objectives and goal as envisioned by Pakistan Vision 2025 and the Vision for Agriculture 2030, as Pakistan is a priority country for CIMMYT. However, a concerted effort is required from various players representing public and private sectors,” said Thakur Prasad Tiwari, senior scientist at CIMMYT. “Using that existing framework to deliver rapid climate smart innovations, the innovation sprint is well-situated to react to the needs of Pakistani farmers. “

Policies and partnerships for innovations in soil fertility management in Nepal

The Nepal Seed and Fertilizer (NSAF) project, funded by USAID and implemented by CIMMYT, facilitates sustainable increases in Nepal’s national crop productivity, farmer income, and household-level food and nutrition security. NSAF promotes the use of improved seeds and integrated soil fertility management technologies along with effective extension, including the use of digital and information and communications technologies. The project facilitated the National Soil Science Research Centre (NSSRC) to develop new domain specific fertilizer recommendations for rice, maize, and wheat to replace the 40 years old blanket recommendations.

Under NSAFs leadership, the Ministry of Agriculture and Livestock Development (MOALD) launched Asia’s first digital soil map and has coordinated governmental efforts to collect and analyze soil data to update the soil map and provide soil health cards to Nepal’s farmers. The project provides training to over 2000 farmers per year to apply ISFM principles and provides evidence to the MOALD to initiate a balanced soil fertility management program in Nepal and to revise the national fertilizer subsidy policy to promote balanced fertilizers. The project will also build efficient soil fertility management systems that significantly increase crop productivity and the marketing and distribution of climate smart and alternative fertilizer products and application methods.

Public-private partnerships accelerate access to innovations in South Asia

The Cereal Systems Initiative for South Asia (CSISA), established in 2009, has reached more than 8 million farmers by conducting applied research and bridging public and private sector divides in the context of rural ‘innovation hubs’ in Bangladesh, India, and Nepal. CSISA’s work has enabled farmers to adopt resource-conserving and climate-resilient technologies and improve their access to market information and enterprise development.

“Farmers in South Asia have become familiar with the value addition that participating in applied research can bring to innovations in their production systems,” said Timothy Krupnik, CIMMYT systems agronomist and senior scientist. “Moreover, CSISA’s work to address gaps between national and extension policies and practices as they pertain to integrated soil fertility management in the context of intensive cropping systems in South Asia has helped to accelerate farmers’ access to productivity-enhancing innovations.”

CSISA also emphasizes support for women farmers by improving their access and exposure to improved technological innovations, knowledge, and entrepreneurial skills.

Sustainable agriculture in Zambia

The Sustainable Intensification of Smallholder Farming systems in Zambia (SIFAZ) is a research project jointly implemented by the UN Food and Agriculture Organization (FAO), Zambia’s Ministry of Agriculture and CIMMYT designed to facilitate scaling-up of sustainable and climate smart crop production and land management practices within the three agro-ecological zones of Zambia. “The Innovation Sprint can take advantage of existing SIFAZ partnerships, especially with Zambia’s Ministry of Agriculture,” said Christian Thierfelder, CIMMYT scientist. “Already having governmental buy-in will enable quick development and dissemination of new sustainable intensification practices to increase productivity and profitability, enhance human and social benefits while reducing negative impacts on the environment.”

Cover photo: Paul Musembi Katiku, a field worker based in Kiboko, Kenya, weighs maize cobs harvested from a low nitrogen trial. (Florence Sipalla/CIMMYT)

2022 Excellence in International Service Award

Pablo D Olivera Firpo

Scientist Pablo D Olivera Firpo has been awarded the Excellence in International Service Award by Advancing the Science of Plant Pathology (APS) for outstanding contributions to plant pathology by APS members for countries other than their own.

Firpo was born in Montevideo, Uruguay, where he received a BSc degree as an agronomy engineer in 1997 from the University of the Republic, College of Agronomy. His PhD degree in 2008 was from the Department of Plant Pathology at the University of Minnesota (UMN). He began his career as a postdoctoral research associate with the Department of Plant Pathology and the USDA-ARS Cereal Disease Lab, and then became a research assistant professor in the Department of Plant Pathology at UMN in 2017.

Firpo has been a vital member in the global cereal rust pathology community and contributed substantially to the fight against Ug99 and other virulent wheat stem rust races that have re-emerged around the world and pose serious threats to food security. Firpo’s contributions are not only within the realm of research of great impact, but also include training 79 scientists and facilitating the establishment of a world-class research group in Ethiopia. He has worked to improve international germplasm screening in Ethiopia. As a postdoctoral research associate, Firpo’s first assignment was to search for new sources of resistance to Ug99 in durum wheat, used for pasta, and related tetraploid wheat lines. That project took him to Ethiopia, where an international Ug99-screening nursery for durum wheat was established at Debre Zeit Research Center. He worked closely with researchers from the Ethiopian Institute of Agricultural Research (EIAR) and the International Maize and Wheat Research Center (CIMMYT) to improve the methodologies for screening and to provide hands-on training to researchers managing the international screening nursery. During a period of 10 years (from 2009 to 2019), he traveled to Ethiopia 21 times to evaluate stem rust reactions of US and international durum wheat germplasm and completed the screening of the entire durum collection (more than 8,000 accessions) from the USDA National Small Grains Collection.

Firpo’s research on sources and genetics of stem rust resistance led to discoveries of valuable genetic resistance in durum and other relatives of wheat. These sources of resistance have provided the needed diversity to ensure the development and sustainability of durable stem rust resistance.

With frequent epidemics and severe yield losses caused by stem rust in eastern Africa, establishing a functional rust pathology laboratory to support international screening, as well as to monitor and detect new virulences in the pathogen population, became a high priority for the international wheat research community. Utilizing the onground opportunities in Ethiopia, Firpo and his colleagues at the CDL and UMN enthusiastically participated in building up the rust pathology lab at the Ambo Plant Protection Center of EIAR. Firpo traveled to Ambo 11 times to provide hands-on training to staff and to develop cereal rust protocols to suit local conditions. He worked closely with colleagues at CDL, EIAR, and CIMMYT to secure and upgrade facilities, equipment and supplies to a standard that ensures reliable rust work will be carried out. As a result, the rust pathology lab at the Ambo Center became the only laboratory in eastern Africa, and one of a handful in the world, that can conduct high-quality race analysis of wheat stem rust samples and provide vital and necessary support for breeding global wheat varieties for rust resistance. Currently, the laboratory is playing a critical role in the global surveillance of the stem rust pathogen and supports wheat breeding efforts led by EIAR, CIMMYT, and the USDA.

Firpo has been passionate in supporting capacity building of human resources in Ethiopia and elsewhere. He has been eager to share his knowledge whenever he encounters an opportunity to do so. In addition to the direct training of the staff at the Ambo Center, Firpo accepted invitations to provide training lectures and hands-on field- and greenhouse-based workshops on rust pathology at three research centers in Ethiopia. He prepared training materials, delivered a total of 12 lectures and 10 practical sessions in three Ethiopia national workshops in 2014, 2015, and 2017. These workshops enhanced human resource development and technical capacity in ​Ethiopia in cereal rust pathology; participants included a total of 64 junior scientists and technical staff from nationwide research centers. Beyond Ethiopia, he was responsible for developing and implementing a six-week training program in cereal rust prevention and control for international scientists. This training program, under the aegis of the Stakman-Borlaug Center for Sustainable Plant Health in the Department of Plant Pathology, University of Minnesota, provided an experiential learning opportunity for international scientists interested in acquiring knowledge and practical skills in all facets of working with cereal rusts. The program trained 15 rust pathologists and wheat scientists from Ethiopia, Kenya, Pakistan, Nepal, Bhutan, Georgia, and Kyrgyzstan, ranging from promising young scientists selected by the USDA as Borlaug Fellows to principal and senior scientists in their respective countries. Many of these trainees have become vital partners in the global surveillance network for cereal rusts.

Working in collaboration with CDL and international scientists, Firpo has been closely involved in global surveillance of the stem rust pathogen, spurred by monitoring the movements of, and detecting, new variants in the Ug99 race group. Since 2009, he and the team at the CDL have analyzed 2,500 stem rust samples from 22 countries, described over 35 new races, and identified significant virulence combinations that overcome stem rust resistance genes widely deployed in global wheat varieties. Among the most significant discoveries were the identification of active sexual populations of the stem rust pathogen in Kazakhstan, Georgia, Germany, and Spain that have unprecedented virulence and genetic diversities. More than 320 new virulent types (or races) were identified from these sexual populations. Evolution in these populations will present continued challenges to wheat breeding. Research in race analysis has provided valuable pathogen isolates that are used to evaluate breeding germplasm to select for resistant wheat varieties and to identify novel sources of stem rust resistance.

MAIZE partners announce a new manual for effectively managing maize lethal necrosis (MLN) disease

For a decade, scientists at the International Maize and Wheat Improvement Center (CIMMYT) have been at the forefront of a multidisciplinary and multi-institutional effort to contain and effectively manage maize lethal necrosis (MLN) disease in Africa.

When the disease was first reported in Kenya 2011 it spread panic among stakeholders. Scientists soon realized that almost all commercial maize varieties in Africa were susceptible. What followed was a superlative effort coordinated by the CGIAR Research Program on Maize (MAIZE) to mobilize “stakeholders, resources and knowledge” that was recently highlighted in an external review of program.

The publication of Maize Lethal Necrosis (MLN): A Technical Manual for Disease Management builds on the partnerships and expertise accrued over the course of this effort to provide a comprehensive “guide on best practices and protocols for sustainable management of the MLN.”

The manual is relevant to stakeholders in countries where MLN is already present, and also aims to offer technical tips to “‘high-risk’ countries globally for proactive implementation of practices that can possibly prevent the incursion and spread of the disease,” writes B.M. Prasanna, director of CIMMYT’s Global Maize Program and MAIZE, in the foreword.

“While intensive multi-disciplinary and multi-institutional efforts over the past decade have helped in containing the spread and impact of MLN in sub-Saharan Africa, we cannot afford to be complacent. We need to continue our efforts to safeguard crops like maize from devastating diseases and insect-pests, and to protect the food security and livelihoods of millions of smallholders,” says Prasanna, who is presently leading the OneCGIAR Plant Health Initiative Design Team.

Pakistan, India transboundary dialogue imperative to resolve Lahore’s pollution: Amin

During the 26th Conference of Parties (COP26) held in Glasgow, Special Assistant to Pakistan’s Prime Minister on Climate Change Malik Amin Aslam said that a transboundary dialogue on mitigating air pollution was imperative to resolve Lahore’s smog, which is mostly generated by Indian farmers burning crop residues.

Read more: https://dailytimes.com.pk/844672/pakistan-india-transboundary-dialogue-imperative-to-resolve-lahores-pollution-amin/

Q&A: CGIAR investment has generated returns of 10 times the amount invested

Disclaimer: The views and opinions expressed in this article are those of Philip Pardey and do not necessarily reflect the official views or position of the International Maize and Wheat Improvement Center (CIMMYT).

Working with national agricultural research centers (NARS), CGIAR centers, including the International Maize and Wheat Improvement Center (CIMMYT), have played a pivotal role in staving off the last global food crisis, mainly through enhancing the yields of staple food crops like cereals.

A new report, commissioned by the Supporters of Agricultural Research (SoAR) Foundation and authored by experts from the University of California, Davis, the University of Minnesota and North Dakota State University shows that over the past five decades, CGIAR investment has generated returns of 10 times the amount invested.

We caught up with co-author Philip Pardey, a professor at the University of Minnesota and Director of the university’s GEMS Informatics Center, to discuss the report’s implications, the importance of collaboration between NARS and CGIAR, and why investment in agricultural research and development (R&D) is needed now more than ever.

According to the report, CGIAR investment has returned a benefit-cost ratio of 10:1. How does this compare to other government investments?

A benefit-cost ratio of 10:1 means that on average, a dollar invested today brings a future return equivalent to $10 in present-day value. This is high: any ratio over the threshold of 1:1 justifies investment.

This indicates that governments — and others who invest in CGIAR and related public food and agricultural R&D — would have profited society by doing more agricultural R&D compared with the investment opportunities normally available to them. Opportunities for investment in other national and global public goods, like education and infrastructure, might also have yielded very high returns, but there is no comparable evidence that those other opportunities yielded similar return on investments.

Drawing on the findings of this report, and other related work, we conclude that the economic evidence justifies at least a doubling of overall investments in public food and agricultural R&D.

The report shows evidence of massive underinvestment in agricultural research and development (R&D) in past years. Why is that?

As we show in the report, inflation adjusted CGIAR funding has declined sharply by around 25% in the past few years. There is nothing in the economic evidence that justifies this scaling back.

Some commentators have suggested that the easy gains from agricultural R&D have already been made and that the historical returns-to-research evidence is no longer representative of the returns to more recent R&D. However, the empirical evidence refutes that notion. For example, a 2019 study from Rao et al. showed that the contemporary returns of agricultural R&D are as high as ever.

What are the risks of continuing on this path of underinvestment in agricultural R&D?

In the second half of the 20th century, global food supply grew faster than demand and real food prices fell significantly, alleviating hunger and poverty for hundreds of millions around the world. Whether or not that pattern can be repeated in the first half of the 21st century will depend crucially on investments in agricultural R&D, including investments made through CGIAR.

Global demand for food is projected to grow by 70% from 2010 to 2050. Simply meeting that increased demand will call for transformative innovations in agriculture to adapt to a changing climate, combat co-evolving pests and diseases, and increase productivity of a fairly fixed land base and a shrinking supply of agricultural water. To make food abundant and affordable for the increasingly urban, poorest of the poor demands doing much more — and much better — than simply keeping up.  If adequate investments in agricultural R&D are absent, even the odds of keeping up look increasingly questionable.

Your report shows that returns are a joint effort between NARS and CGIAR. Can you elaborate on that?

The impact evidence we reviewed for our study made clear that the success of CGIAR research is inextricably intertwined with research undertaken by national programs. In fact, this national-international R&D connectedness makes it difficult to figure out what share of the overall benefits from research are attributable to CGIAR or national innovation systems.

CGIAR has appropriately shifted its attention to low-income countries that are still heavily dependent on agriculture for livelihoods and food security. These also tend to have lower national R&D capacities and more fragile innovation systems, as well as limited, albeit emerging, private sector capabilities to support their food and agricultural sectors.

Supporting the evolution of agricultural innovation systems within CGIAR’s target economies requires doubling down on technology discovery, adaptation and delivery activities.

Philip Pardey at the University of Minnesota, USA. (Photo: InSTePP/University of Minnesota)
Philip Pardey at the University of Minnesota, USA. (Photo: InSTePP/University of Minnesota)

How can CGIAR better meet current global food challenges?

CGIAR has been demonstrably successful as an international instrument of technology discovery and in enhancing the international transfer, or spillover, of these new technologies. Tackling longer term agricultural technology challenges has been a key part of past successes.

However, a significant share of the funding for the CGIAR appears to have shifted away from the more strategic development of international public innovation goods to more localized economic development activities with a technology component. For example, the share of unencumbered CGIAR funding shrank from around 80% in 1971 to 50% in 2000, and since 2010 has plummeted to very low levels. The impact evidence provides little support for the notion that this shift in funding, which often implies a greater emphasis on more localized and shorter-term activities, is a high payoff strategy that best leverages CGIAR’s comparative advantages.

As it continually repositions its role as a source of international public innovation goods targeted to agriculturally dependent low-income countries, CGIAR will need to rethink how it partners with the public agencies, universities and private research entities that are the major source of innovations in food and agriculture.

When CGIAR was founded, a large share of the world’s agricultural R&D was done by public agencies in rich countries. Now the agriculturally large, middle-income countries spend on par with the rich countries, and the innovation landscape in rich and many middle-income countries is increasingly dominated by private firms. This comes with new partnership opportunities for CGIAR, but also new challenges, not least given the increasingly proprietary nature of the innovations and data that are driving developments in the food and agricultural sectors.

In your report you have documented clear evidence to support investment in agricultural R&D. What are the next steps in engaging national governments and decision makers to get agricultural R&D back on their agendas?

Today, as in the past, funding streams for CGIAR research are in decline and under threat. This mirrors a pattern of declining public support over recent decades for agricultural R&D conducted by national programs in many of the world’s richer countries.

However, public expectations about the roles of government to address glaring market failures may be realigning. For instance, the COVID-19 crisis exposed weakness in many public health systems, with calls for renewed and hopefully sustained, long-term investments in these public programs. COVID has also revealed the fragility of food supply systems, even in rich countries. The tide of public opinion also seems to be turning regarding the growing risks associated with climate change.

Evidence-based efforts to communicate the inter-relatedness between climate, public health and agriculture risks, and the role of innovation in reducing these growing risks over the decades ahead is critical to right-sizing and realigning the public roles in agricultural R&D.

Just as strong public investments play a crucial and complimentary role regarding significant private investments in health research, so too does the basic and pre-competitive research, undertaken with public funding, prime the pump for the growing private roles in agricultural innovation.

And even as the worldwide demand for more diversified diets continues to increase, demand for staple crops such as wheat and maize will also continue to grow and will remain crucial to securing favourable nutrition and food security outcomes in the decades ahead. Innovations in agriculture are hard won, and there are long lags (often a decade or more) between spending on agricultural R&D and getting new crop technologies in the hands of farmers. Thus there is a real sense of urgency to revitalize the investments in agricultural R&D required to produce the innovations that are needed now more than ever to sustainably feed the world.

Philip Pardey is a Professor of Applied Economics and Director of the GEMS Informatics Center, a joint venture of the College of Food, Agricultural and Natural Resource Sciences (CFANS) and the Minnesota Supercomputing Institute (MSI), both at the University of Minnesota.

Preventing Seed Transmission of Maize Lethal Necrosis in Africa

The outbreak of maize lethal necrosis (MLN) disease in east Africa in 2011 (first reported in Kenya’s South Rift Valley) was a major concern, given that maize is the region’s most important staple crop. This disease is caused by co-infection of plants with two viruses – maize chlorotic mottle virus (MCMV) and sugarcane mosaic virus (SCMV) – and can cause yield losses of up to 90%. It spread rapidly across east Africa, compromising food and economic security for several million smallholder farmers.

MLN is a complex challenge that must be addressed through a multipronged approach. While significant advances have been made through intensive efforts by CIMMYT and other partners in terms of identifying and developing MLN tolerant or resistant hybrids, the rapid spread of the epidemic over the last few years remains a concern for farming communities, policy makers, national plant protection organization and the commercial seed sector, as well as the international scientific community.

There is also increasing suspicion that commercial seed flows may have been the initial source of the dissemination of the MLN-causing viruses over large distances, and it is thought that transmission of MCMV through contaminated maize seed continues to be a major risk factor in the spread of MLN across east Africa and beyond. However, there is a lack of reliable information on various aspects of MLN epidemiology, including the rate of MCMV transmission through seed.

The project on ‘Preventing Seed Transmission of Maize Lethal Necrosis in Africa’ aims to generate a better understanding of these epidemiological issues to allow for more effective control of MCMV transmission through commercial seed, support the development of effective, evidence-based phytosanitary regulations, reduce MLN disease pressure in eastern Africa, and curb the spread to non-endemic countries in other parts of the continent.

Objectives

  • Develop appropriate protocols for assessing MLN transmission through seed
  • Develop reliable and cost-effective diagnostic protocols for curbing the spread of MCMV/MLN through seed implemented by NPPOs and commercial seed companies.
  • Determine the rates of transmission for the East African and US (Hawaiian) isolates of MCMV in tropical, subtropical and temperate maize germplasm
  • Understand the mode of MCMV transmission through commercial seed within endemic areas to allow more effective control
  • Determine the distribution of MCMV in maize seed, and the effects of seed treatments on virus transmission
  • Analyze whether virus and/or host factors control seed transmission of MCMV
  • Identify economical treatment methods to reduce or prevent MCMV transmission through seed for commercial seed industry and casual seed trade
  • Generate detailed understanding of the role of root debris on persistence of MCMV in the soil, the persistence of the virus in different soil types, and the duration of virus viability in the soil
  • Disseminate science-based knowledge and evidence generated through this project to National Plant Protection Organizations (NPPOs) and Ministries of Agriculture in sub-Saharan Africa

How a disease without borders was contained

It’s been eight years since maize lethal necrosis (MLN) was first reported on the African continent. When it appeared in Kenya’s Bomet County in 2011, a sense of panic swept across the maize sector. Experts quickly realized that all maize varieties on the market were susceptible to this viral disease, which could wipe out entire maize fields.

Spearheaded by the International Maize and Wheat Improvement Center (CIMMYT), a rapid regional response involving national agriculture research systems (NARS), national plant protection organizations and seed sector partners was set up. The response involved multiple approaches: rigorous surveillance, epidemiology research, disease management across the seed value chain, and screening and fast-tracking of the MLN-tolerant maize breeding program.

Now, CIMMYT and its partners are reflecting on the tremendous impact of transboundary coalition to contain the devastating disease.

“Country reports show there are now much less incidents of MLN in the region. We have effectively contained this disease as no new country in sub-Saharan Africa reported MLN since Ethiopia in 2014. This is a great achievement of an effective public private partnership,” noted B.M. Prasanna, Director of CIMMYT’s Global Maize Program and the CGIAR Research Program on Maize.

He was speaking at the closure workshop for the MLN Diagnostics and Management project and the MLN Epidemiology project on October 15-17, 2019, in Nairobi, Kenya. Experts from research, plant health and seed sector organizations from eastern and southern Africa reflected on the tremendous impact of the transboundary coalition to contain MLN across the region.

“The outbreak of the disease in Uganda in 2012 was a huge challenge as all the maize varieties and hybrids on the market were susceptible. With the support of CIMMYT and other partners in the national agriculture research systems, we got access to Bazooka, a high-yielding, drought- and MLN-tolerant maize variety that has helped in containing the disease,” said Godfrey Katwere, marketing manager for NASECO.

Until now, 19 MLN-tolerant and -resistant hybrids have been released, helping to keep the disease away from farmers’ fields and to stop its spillover to non-endemic countries in sub-Saharan Africa.

CIMMYT team members check for traces of the maize chlorotic mottle virus (MCMV) in maize plants during a visit to the MLN screening facility in Naivasha, Kenya. (Photo: Joshua Masinde/CIMMYT)
CIMMYT team members check for traces of the maize chlorotic mottle virus (MCMV) in maize plants during a visit to the MLN screening facility in Naivasha, Kenya. (Photo: Joshua Masinde/CIMMYT)

Science in action

The MLN screening facility, established in Naivasha in 2013, has been key to a better understanding of the disease and to setting up MLN hybrid tolerance and resistance breeding efforts. The facility, funded by the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture, has supported public and private partners to screen over 200,000 germplasm with around 300,000 rows of maize.

State-of-the-art epidemiology research has been carried out to identify how the disease could be transmitted and the best diagnostics methods along the seed value chain.

MLN is caused by the combination of the maize chlorotic mottle virus (MCMV) and any of the viruses belonging to the Potyviridae family.

As part of the project, studies showed that moist soil had higher MCMV virus loads than dry soil. The studies — conducted by Benham Lockhart of University of Minnesota and Peg Redinbaugh, a professor at Ohio State University and Research Leader and Research Plant Molecular Geneticist at USDA — indicated that MCMV can stay active in runoff water, and helped in understanding how the disease is transmitted and how to define management protocols.

“Crop debris may also act as source of MCMV inoculum but for a limited period of up to two months,” said L.M. Suresh, CIMMYT Maize Pathologist, in reference to soil transmission studies conducted by CIMMYT. “A host-free period of two months is, therefore, recommended for effective management of MLN,” he noted.

Rapid and low-cost MLN-causing virus detection methods such as immunostrips and ELISA-based tests were adopted at scale.

“After optimizing the protocols for MLN viruses’ diagnosis suitable for African systems, we transferred these technologies to [national plant protection organizations] and seed companies, not just within the endemic countries but also to the non-endemic countries in southern and west Africa, through intensive trainings,” Prasanna explained. “We created a digital MLN surveillance tool under the Open Data Kit (ODK) app for NPPOs and other stakeholders to effectively carry out MLN surveillance on the ground. The survey information is captured in real time in farmers’ and seed production fields coupled with rapid immunostrips MLN tests,” he remarked.

According to Francis Mwatuni, Project Manager of the MLN Diagnostics and Management project, this proactive and collaborative surveillance network has been an important outcome that helped curb MLN from spreading to non-endemic regions. “In 2016, we only had 625 surveillance points. By 2019, the surveillance points in all the target countries stood at 2,442, which intensified the alertness on MLN presence and how to effectively deal with it,” Mwatuni said. In total, 7,800 surveillance points were covered during the project implementation period.

Over 100 commercial seed firms have also been trained on how to produce MLN-free seed to facilitate trade within the endemic nations and to ensure the disease is not transferred to the non-endemic countries via contaminated seeds.

Participants at the MLN projects closure workshop stand for a group photo. (Photo: Joshua Masinde/CIMMYT)
Participants at the MLN projects closure workshop stand for a group photo. (Photo: Joshua Masinde/CIMMYT)

Sustaining the fight

Researchers continue to work to lessen MLN’s resurgence or new outbreaks. In 2018, incidents in all endemic countries, except Ethiopia, declined sharply. One suggested explanation for the upsurge in Ethiopia, especially in the northwestern region, was reduced use of pesticide for fall armyworm control, as compared to previous years where heavy application of these pesticides also wiped out MLN insect vectors, such as maize thrips and aphids.

At the end of the projects, partners urged for the scale-up of second-generation MLN-tolerant and -resistant varieties. They explained farmers would fully benefit from recent genetic gains of the new improved varieties and its protection against MLN.

“Despite the success registered, MLN is still a major disease requiring constant attention. We cannot rest as we redirect our energies at sustaining and building on the gains made,” said Beatrice Pallangyo, principal agricultural officer in Tanzania’s Ministry of Agriculture, Food Security and Cooperatives.

After the success containing MLN, stakeholders suggested the need to stay alert on other transboundary pests and diseases such as the tar spot complex, which could be a major threat to Africa’s food security in case of an outbreak.

Happy Seeder can reduce air pollution and greenhouse gas emissions while making profits for farmers

Direct sowing of wheat seed into a recently-harvested rice field using the “Happy Seeder” implement, a cost-effective and eco-friendly alternative to burning rice straw, in northern India. (Photo: BISA/Love Kumar Singh)
Direct sowing of wheat seed into a recently-harvested rice field using the “Happy Seeder” implement, a cost-effective and eco-friendly alternative to burning rice straw, in northern India. (Photo: BISA/Love Kumar Singh)

A research paper published in the world’s leading scientific journal, Science Magazine, indicates that using the Happy Seeder agriculture technology to manage rice residue has the potential of generating 6,000-11,500 Indian rupees (about US$85-160) more profits per hectare for the average farmer. The Happy Seeder is a tractor-mounted machine that cuts and lifts rice straw, sows wheat into the soil, and deposits the straw over the sown area as mulch.

The paper “Fields on fire: Alternatives to crop residue burning in India” evaluates the public and private costs and benefits of ten alternate farming practices to manage rice residue, including burn and non-burn options. Happy Seeder-based systems emerge as the most profitable and scalable residue management practice as they are, on average, 10%–20% more profitable than burning. This option also has the largest potential to reduce the environmental footprint of on-farm activities, as it would eliminate air pollution and would reduce greenhouse gas emissions per hectare by more than 78%, relative to all burning options.

This research aims to make the business case for why farmers should adopt no-burn alternative farming practices, discusses barriers to their uptake and solutions to increase their widespread adoption. This work was jointly undertaken by 29 Indian and international researchers from The Nature Conservancy, the International Maize and Wheat Improvement Centre (CIMMYT), the University of Minnesota, the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA) and other organizations.

Every year, some 23 million tonnes of rice residue is burnt in the states of Haryana, Punjab and Western Uttar Pradesh, contributing significantly to air pollution and short-lived climate pollutants. In Delhi NCR, about half the air pollution on some winter days can be attributed to agricultural fires, when air quality level is 20 times higher than the safe threshold defined by WHO. Residue burning has enormous impacts on human health, soil health, the economy and climate change.

The burning of crop residue, or stubble, across millions of hectares of cropland between planting seasons is a visible contributor to air pollution in both rural and urban areas. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
The burning of crop residue, or stubble, across millions of hectares of cropland between planting seasons is a visible contributor to air pollution in both rural and urban areas. (Photo: Dakshinamurthy Vedachalam/CIMMYT)

“Despite its drawbacks, a key reason why burning continues in northwest India is the perception that profitable alternatives do not exist. Our analysis demonstrates that the Happy Seeder is a profitable solution that could be scaled up for adoption among the 2.5 million farmers involved in the rice-wheat cropping cycle in northwest India, thereby completely eliminating the need to burn. It can also lower agriculture’s contribution to India’s greenhouse gas emissions, while adding to the goal of doubling farmers income,” says Priya Shyamsundar, Lead Economist at The Nature Conservancy and one of the lead authors of the paper.

“Better practices can help farmers adapt to warmer winters and extreme, erratic weather events such as droughts and floods, which are having a terrible impact on agriculture and livelihoods. In addition, India’s efforts to transition to more sustainable, less polluting farming practices can provide lessons for other countries facing similar risks and challenges,” explains M.L. Jat, CIMMYT cropping systems specialist and a co-author of the study.

CIMMYT principal scientist M. L. Jat shows a model of a no-till planter that facilitates no-burn farming. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
CIMMYT principal scientist M. L. Jat shows a model of a no-till planter that facilitates no-burn farming. (Photo: Dakshinamurthy Vedachalam/CIMMYT)

“Within one year of our dedicated action using about US$75 million under the Central Sector Scheme on ‘Promotion of agriculture mechanization for in-situ management of crop residue in the states of Punjab, Haryana, Uttar Pradesh and NCT of Delhi,’ we could reach 0.8 million hectares of adoption of Happy Seeder/zero tillage technology in the northwestern states of India,” said Trilochan Mohapatra, director general of the Indian Council of Agricultural Research (ICAR). “Considering the findings of the Science article as well as reports from thousands of participatory validation trials, our efforts have resulted in an additional direct farmer benefit of US$131 million, compared to a burning option,” explained Mohapatra, who is also secretary of India’s Department of Agricultural Research and Education.

The Government of India subsidy in 2018 for onsite rice residue management has partly addressed a major financial barrier for farmers, which has resulted in an increase in Happy Seeder use. However, other barriers still exist, such as lack of knowledge of profitable no-burn solutions and impacts of burning, uncertainty about new technologies and burning ban implementation, and constraints in the supply-chain and rental markets. The paper states that NGOs, research organizations and universities can support the government in addressing these barriers through farmer communication campaigns, social nudging through trusted networks and demonstration and training. The private sector also has a critical role to play in increasing manufacturing and machinery rentals.

Read the full study

This research was supported by the Susan and Craig McCaw Foundation, the Institute on the Environment at the University of Minnesota, the CGIAR Research Program on Wheat (WHEAT), and the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). The Happy Seeder was originally developed through a project from the Australian Centre for International Agricultural Research (ACIAR).


For more information, or to arrange interviews with the researchers, please contact:

Rodrigo Ordóñez, Communications Manager, CIMMYT
r.ordonez@cgiar.org, +52 (55) 5804 2004 ext. 1167

Sonali Nandrajog, Communications Consultant, The Nature Conservancy – India
sonalinandrajog@gmail.com, +98 9871948044

Spokespersons:

M.L. Jat, Cropping Systems Agronomist, CIMMYT, India
M.Jat@cgiar.org

Priya Shyamsundar, Lead Economist, The Nature Conservancy
priya.shyamsundar@tnc.org

Seema Paul, Managing Director, The Nature Conservancy – India
seema.paul@tnc.org


About CIMMYT

The International Maize and Wheat Improvement Center (CIMMYT) is the global leader in publicly-funded maize and wheat research and related farming systems. Headquartered near Mexico City, CIMMYT works with hundreds of partners throughout the developing world to sustainably increase the productivity of maize and wheat cropping systems, thus improving global food security and reducing poverty. CIMMYT is a member of the CGIAR System and leads the CGIAR Research Programs on Maize and Wheat, and the Excellence in Breeding Platform. The Center receives support from national governments, foundations, development banks and other public and private agencies.

About The Nature Conservancy – India

We are a science-led global conservation organisation that works to protect ecologically important lands and water for nature and people. We have been working in India since 2015 to support India’s efforts to “develop without destruction”. We work closely with the Indian government, research institutions, NGOs, private sector organisations and local communities to develop science-based, on-the-ground, scalable solutions for some of the country’s most pressing environmental challenges. Our projects are aligned with India’s national priorities of conserving rivers and wetlands, address air pollution from crop residue burning, sustainable advancing renewable energy and reforestation goals, and building health, sustainable and smart cities.

Alternatives to burning can increase Indian farmers’ profits and cut pollution, new study shows

India’s farmers feed millions of people. (Photo: Dakshinamurthy Vedachalam)
India’s farmers feed millions of people. (Photo: Dakshinamurthy Vedachalam)

A new economic study in the journal Science shows that thousands of farmers in northern India could increase their profits if they stop burning their rice straw and adopt no-till practices to grow wheat. Alternative farming practices could also cut farmers’ greenhouse gas emissions from on-farm activities by as much as 78% and help lower air pollution in cities like New Delhi.

The new study compares the costs and benefits of 10 distinct land preparation and sowing practices for northern India’s rice-wheat cropping rotations, which are spread across more than 4 million hectares. The direct seeding of wheat into unplowed soil and shredded rice residues was the best option — it raises farmers’ profits through higher yields and savings in labor, fuel, and machinery costs.

The study, conducted by a global team of eminent agriculture and environmental scientists, was led by researchers from The Nature Conservancy, the International Maize and Wheat Improvement Center (CIMMYT), the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA) and the University of Minnesota.

A burning issue

To quickly and cheaply clear their fields to sow wheat each year, farmers in northern India burn an estimated 23 million tons of straw from their rice harvests. That enormous mass of straw, if packed into 20-kilogram 38-centimeter-high bales and piled on top of each other, would reach a height of over 430,000 kilometers — about 1.1 times the distance to the moon.

Regulations are in place in India to reduce agricultural fires but burning continues because of implementation challenges and lack of clarity about the profitability of alternate, no-burn farming.

Farmers have alternatives, the study shows. To sow wheat directly without plowing or burning rice straw, farmers need to purchase or rent a tractor-mounted implement known as the “Happy Seeder,” as well as attach straw shedders to their rice harvesters. Leaving straw on the soil as a mulch helps capture and retain moisture and also improves soil quality, according to M.L. Jat, CIMMYT Principal Scientist, cropping systems specialist and a co-author of the study.

A combine harvester (left) equipped with the Super Straw Management System, or Super SMS, works alongside a tractor fitted with a Happy Seeder. (Photo: Sonalika Tractors)
A combine harvester (left) equipped with the Super Straw Management System, or Super SMS, works alongside a tractor fitted with a Happy Seeder. (Photo: Sonalika Tractors)

Win-win

The Science study demonstrates that it is possible to reduce air pollution and greenhouse gas emissions in a way that is profitable to farmers and scalable.

The paper shows that Happy Seeder-based systems are on average 10%–20% more profitable than straw burning options.

“Our study dovetails with 2018 policies put in place by the government of India to stop farmers from burning, which includes a US$166 million subsidy to promote mechanization to manage crop residues within fields,” said Priya Shyamsundar, Lead Economist, Global Science, of The Nature Conservancy and first author of the study.

Shyamsundar noted that relatively few Indian farmers currently sow their wheat using the Happy Seeder but manufacturing of the Seeder had increased in recent years. “Less than a quarter of the total subsidy would pay for widespread adoption of the Happy Seeder, if aided by government and NGO support to build farmer awareness and impede burning.”

“With a rising population of 1.6 billion people, South Asia hosts 40% of the world’s poor and malnourished on just 2.4% of its land,” said Jat, who recently received India’s prestigious Rafi Ahmed Kidwai Award for outstanding and impact-oriented research contributions in natural resource management and agricultural engineering. “Better practices can help farmers adapt to warmer winters and extreme, erratic weather events such as droughts and floods, which are having a terrible impact on agriculture and livelihoods. In addition, India’s efforts to transition to more sustainable, less polluting farming practices can provide lessons for other countries facing similar risks and challenges.”

In November 2017, more than 4,000 schools closed in Delhi due to seasonal smog. This smog increases during October and November when fields are burned. It causes major transportation disruptions and poses health risks across northern India, including Delhi, a city of more than 18 million people.

Some of these problems can be resolved by the use of direct sowing technologies in northwestern India.

“Within one year of our dedicated action using about US$75 million under the Central Sector Scheme on ‘Promotion of agriculture mechanization for in-situ management of crop residue in the states of Punjab, Haryana, Uttar Pradesh and NCT of Delhi,’ we could reach 0.8 million hectares of adoption of Happy Seeder/zero tillage technology in the northwestern states of India,” said Trilochan Mohapatra, director general of the Indian Council of Agricultural Research (ICAR). “Considering the findings of the Science article as well as reports from thousands of participatory validation trials, our efforts have resulted in an additional direct farmer benefit of US$131 million, compared to a burning option,” explained Mohapatra, who is also secretary of India’s Department of Agricultural Research and Education.

Read the full study in Science

This research was supported by the Susan and Craig McCaw Foundation, the Institute on the Environment at the University of Minnesota, the CGIAR Research Program on Wheat (WHEAT), and the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). The Happy Seeder was originally developed through a project from the Australian Centre for International Agricultural Research (ACIAR).

For more information, or to arrange interviews with the researchers, please contact:

Rodrigo Ordóñez, Communications Manager, CIMMYT
r.ordonez@cgiar.org, +52 5558042004 ext. 1167