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Women applying required fertilizer along the tracks of seed drill. (Photo: Wasim Iftikar)

A wake-up call for the fertilizer industry

Written by Marta Millere on . Posted in Features.

When you hear the words ‘plant nutrition’ or ‘fertilizer’, do you think of sustainability?

Many might not but the recent gathering of plant nutrition experts in Versailles at the High Level Forum on Sustainable Plant Nutrition might indicate that the tide is turning.

“This event is a first of its kind. Here you have the fertilizer industry, which is relatively conservative, and yet there are speakers such as Mostafa Terrab of the OCP Group or Svein Tore Holsether of Yara who are pushing this future agenda,” said Bruce Campbell, Director of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS).

“If I was from the fertilizer industry, I would really wake up, as perhaps is happening with some companies. If you look at the airlines industry, you see some super visionary players and others who are not. I feel that there could be players in this group who could be as visionary: looking at cutting down the energy inputs into fertilizer production, working together with governments to reform subsidies that promote over-fertilization, working towards precision fertilizer application. If the fertilizer industry wants to gain the trust of a more and more discerning public, then they need to show climate leadership,” Campbell remarked.

Early plant vigor can be improved through the use of direct seeders, which place fertilizer close to the seed. (Photo: Wasim Iftikar / CIMMYT)

The right time and place

Although fertilizer use revolutionized agriculture and allowed farmers to grow better crops on less land, plant nutrients are often vilified because of the negative environmental impact caused by their improper use.

For this reason, experts often speak of the 4R stewardship principles of fertilizer: right fertilizer source, at the right rate, at the right time, and in the right place.

“The industry needs solid science to back up agricultural technology solutions in the realms of both nutrient and water management. Regarding the right placement, right time and the right quantity of fertilizer, mechanization solutions — such as direct seeders, which place fertilizer close to the seed — can really increase nutrient use efficiency and improve plant early vigor. Together with a wide range of partners, CIMMYT has been using these across smallholder systems of Asia, Africa and Latin America,” highlighted Martin Kropff, Director General of the International Maize and Wheat Improvement Center (CIMMYT), during one of the panel discussions.

In order to scale up the most relevant scientific findings and extension efforts, the focus should be on using available fertilizers better. This goes hand in hand with better management of organic matter and soils. There is a human element too: farmers’ efficiency could be improved with better advice especially targeted at extension offices or service providers.

At the event, David Nabarro challenged the fertilizer industry to take the lead in reforming the broken food system. (Photo: Marta Millere/CIMMYT)
At the event, David Nabarro challenged the fertilizer industry to take the lead in reforming the broken food system. (Photo: Marta Millere/CIMMYT)

S for sustainability

In order to identify the missing link of sustainability, just a day before the launch of the forum, the International Fertilizer Association (IFA) created a new Scientific Panel on Responsible Plant Nutrition. This group of international experts will provide objective knowledge and assessments for the fertilizer industry and other stakeholders to develop a more responsible plant nutrition system.

Bruno GĂ©rard, Director of CIMMYT’s Sustainable Intensification research program and a member of the panel, spoke about CIMMYT’s unique selling proposition. “CIMMYT has a significant research agenda and experience in better nutrient management in wheat- and maize-based systems. In regions such as South Asia, the challenge is to produce more or the same with less and better fertilizers through improved management practices. Instead in Sub-Saharan Africa, the focus is on giving better access and knowledge so that farmers can produce more with adequate fertilizer inputs.”

Being part of the panel will give CIMMYT the opportunity to better link up with the fertilizer industry and contribute to improved fertilizer use in term of profitability, yield stability and risk, accessibility but also — from an environmental perspective — minimize the footprint of fertilizer through better agronomic practices and management.

The High Level Forum on Plant Nutrition took place on November 18-20, 2019, in Versailles, France.

Reporters interview trainers in the field during the Fighting Back against Fall Armyworm workshops. (Photo: Shafiq Islam)

New project strengthens capacity to fight fall armyworm in Bangladesh

Written by Matthew O'Leary on . Posted in Features. 2 Comments on New project strengthens capacity to fight fall armyworm in Bangladesh

Hundreds of agricultural professionals in Bangladesh were trained in the latest fall armyworm management strategies as part of a new project that will strengthen efforts against this threat to farmers’ income, food security, and health. The new project, Fighting Back Against Fall Armyworm, is supported by USAID and the University of Michigan.

As part of the project, last November over 450 representatives from government, nonprofits and the private sector participated in three-day training to learn how to identify, monitor and apply integrated pest management approaches.

Fall armyworm presents an important threat to farmers’ income, food security and livelihoods as it continues to spread across the country, in addition to health risks if toxic insecticides are indiscriminately used, said Tim Krupnik, senior scientist and agronomist at the International Maize and Wheat Improvement Center (CIMMYT). It is anticipated the course participants will pass on knowledge about the pest and appropriate control practices to around 30,000 farmers in their respective localities.

“Participants were selected for their ability to reliably extend the strategies that can be sustainably implemented by maize farmers across the country,” explained Krupnik. “The immersive training saw participants on their hands and knees learning how to scout, monitor and collect data on fall armyworm,” he said. “They were also trained in alternatives to toxic chemical pesticides, and how and when to make decisions on biological control with parasitoids, bio-pesticides, and low-toxicity chemical pesticide use.”

Following its ferocious spread across Africa from the Americas, fall armyworm first attacked farms in Bangladesh during the winter 2018-2019 season. Combined with highly apparent damage to leaves, its resilience to most chemical control methods has panicked farmers and led researchers to promote integrated pest management strategies.

In this context, the 22-month Fighting Back Against Fall Armyworm project will build the capacity of the public and private sector for effective fall armyworm mitigation.

The hungry caterpillar feeds on more than 80 plant species, but its preferred host is maize — a crop whose acreage is expanding faster than any other cereal in Bangladesh. The pest presents a peculiar challenge as it can disperse over 200 kilometers during its adult stage, laying thousands of eggs along its way.

Once settled on a plant, larvae burrow inside maize whorls or hide under leaves, where they are partially protected from pesticides. In a bid to limit fall armyworm damage, farmers’ indiscriminate application of highly toxic and inappropriate insecticides can encourage the pest to develop resistance, while also presenting important risks to beneficial insects, farmers, and the environment.

Reaching every corner of the country

Participants of the Fighting Back against Fall Armyworm trainings visit farmers’ fields in Chauadanga, Bangladesh. (Photo: Tim Krupnik/CIMMYT)
Participants of the Fighting Back against Fall Armyworm trainings visit farmers’ fields in Chauadanga, Bangladesh. (Photo: Tim Krupnik/CIMMYT)

As part of the project, CIMMYT researchers supported Bangladesh’s national Fall Armyworm Task Force to develop an online resource to map the spread of fall armyworm. Scientists are working with the Ministry of Agriculture to digitally collect real-time incidents of its spread to build evidence and gain further insight into the pest.

“Working with farmers and agricultural agencies to collect information on pest population and incidence will assist agricultural development planners, extension agents, and farmers to make informed management decisions,” said Krupnik, who is leading the project.

A key objective is to support national partners to develop educational strategies to facilitate sustainable pest control while also addressing institutional issues needed for efficient response.

“In particular, the Government of Bangladesh has been extremely responsive about the fall armyworm infestation and outbreak. It developed and distributed two fact sheets — the first of which was done before fall armyworm arrived — in addition to arranging workshops throughout the country. Initiatives have been taken for quick registration of microbial pesticides and seed treatments,” commented Syed Nurul Alam, Entomologist and Senior Consultant with CIMMYT.

“It is imperative that governmental extension agents are educated on sustainable ways to control the pest. In general, it is important to advise against the indiscriminate use of pesticides without first implementing alternative control measures, as this pest can build a resistance rendering many chemicals poorly effective,” Krupnik pointed out.

To this end, the project also consciously engages members of the private sector — including pesticide and seed companies as well as agricultural dealers — to ensure they are able to best advise farmers on the nature of the pest and suggest sustainable and long-term solutions. To date, the project has advised over 755 agricultural dealers operating in impacted areas of Bangladesh, with another 1,000 being trained in January 2020.

Project researchers are also working alongside the private sector to trial seed treatment and biologically-based methods of pest control. Biocontrol sees researchers identify, release, and manage natural predators and parasitoids to the fall armyworm, while targeted and biologically-based pesticides are significantly less of a health risk for farmers, while also being effective.

The 22-month project, funded by USAID, has 6 key objectives:

  • Develop educational materials to aid in reaching audiences with information to improve understanding and management of fall armyworm.
  • Assist the Department of Agricultural Extension in deploying awareness raising and training campaigns.
  • Prepare the private sector for appropriate fall armyworm response.
  • Standing task force supported.
  • Generate data and evidence to guide integrated fall armyworm management.

The Fighting Back Against Fall Armyworm in Bangladesh project is aligned with Michigan State University’s Borlaug Higher Education for Agricultural Research and Development (BHEARD) program, which supports the long-term training of agricultural researchers in USAID’s Feed the Future priority countries.

To achieve synergies and scale, the project will also be supported in part by in-kind staff time and activities, through linkages to the third phase of the USAID-supported Cereal Systems Initiative for South Asia (CSISA), led by the International Maize and Wheat Improvement Centre (CIMMYT). CSISA and CIMMYT staff work very closely with Bangladesh’s Department of Agricultural Extension and the Bangladesh Maize and Wheat Research Institute (BWMRI) in addition to other partners under the Ministry of Agriculture.

CIMMYT Principal Scientist Sarah Hearne presents her research at the PAG conference. (Photo: CIMMYT)

CIMMYT scientists join fellow experts in San Diego for world’s largest plant and animal genomics conference

Written by Alison Doody on . Posted in Features.

Scientists from the International Maize and Wheat Improvement Center (CIMMYT) presented last week at the International Plant and Animal Genome Conference (PAG) in San Diego, USA.

PAG is the largest agricultural genomics meeting in the world, bringing together over 3,000 leading genetic scientists and researchers from around the world to present their research and share the latest developments in plant and animal genome projects. It provides an important opportunity for CIMMYT scientists to highlight their work translating the latest molecular research developments into wheat and maize breeding solutions for better varieties.

To meet global food demand by 2050, agricultural production must increase by 60% — while at the same time minimizing harm to the environment. This is the process of sustainable intensification, recommended by organizations like the United Nations and the EAT Lancet Commission as a key strategy for transforming our struggling global food systems.

Genomics is crucial to sustainable intensification. By studying a plant or animal’s genetic architecture, researchers can better understand what drives crop or livestock productivity, quality, climate resilience, and resistance to pests and diseases. With this information scientists can speed up efforts to develop better varieties and stay ahead of climate- and disease-related threats.

Philomin Juliana stands next to the logo of the PAG conference. (Photo: CIMMYT)
Philomin Juliana stands next to the logo of the PAG conference. (Photo: CIMMYT)

At the conference, wheat scientist Philomin Juliana shared her findings on successfully identifying significant new chromosomal regions for wheat yield and disease resistance using the full wheat genome map. Juliana and her colleagues have created a freely-available collection of genetic information and markers for more than 40,000 wheat lines which will accelerate efforts to breed superior wheat varieties. She also discussed the value of genomic and high-throughput phenotyping tools for current breeding strategies adopted by CIMMYT to develop climate-resilient wheat.

Principal scientist Sarah Hearne discussed the smarter use of genebank exploration for breeding. Germplasm banks are reserves of native plant variation representing the evolutionary history of the crops we eat. They are a vital source of genetic information, which can accelerate the development of better, more resilient crops. However, it is not easy for breeders and scientists to identify or access the genetic information they need. Using the whole genebank genotypic data, long-term climate data from the origins of the genebank seeds and novel analysis methods, Hearne and her colleagues were able to identify elite genetic breeding material for improved, climate resilient maize varieties. They are now extending this approach to test the value of these data to improve breeding programs and accelerate the development of improved crops.

Distinguished scientist Jose Crossa discussed the latest models and methods for combining phenomic and genomic information to accelerate the development of climate-resilient crop varieties. He highlighted the use of the Artificial Neural Network — a model inspired by the human brain — to model the relationship between input signals and output signals in crops. He also discussed a phenotypic and genomic selection index which can improve response to selection and expected genetic gains for all of an individual plant’s genetic traits simultaneously.

Sarah Hearne presents on the smart use of germplasm banks to accelerate the development of better wheat and maize varieties. (Photo: Francisco Gomez)
Sarah Hearne presents on the smart use of germplasm banks to accelerate the development of better wheat and maize varieties. (Photo: Francisco Gomez)

Principal scientist Kanwarpal Dhugga gave a presentation on approaches to improve resistance against maize lethal necrosis (MLN) in Africa. MLN is an aggressive disease that first appeared in Kenya in 2011, devastating maize production. It has since spread to neighboring countries. Under a grant from the Bill & Melinda Gates Foundation, Dhugga and his colleagues at CIMMYT and Corteva Agriscience have identified a small genomic region explaining more than 50% of variation in MLN resistance. They are currently validating a few candidate genes in this region. Once done, they will use gene editing directly in elite lines from eastern Africa to accelerate the development of improved, disease resistant maize hybrids.

Genomic breeder Umesh Rosyara demonstrated the genomic selection pipeline and other tools at a workshop using the online Galaxy software. Galaxy is an open-source software that allows users to access powerful computational analysis tools. The CGIAR Excellence in Breeding Platform (EiB) has set up an instance of Galaxy that contains a suite of bioinformatics analysis tools, R-packages — a free software environment for statistical computing and graphics — and visualization tools to manage routine genomic selection (GS) and genome wide association studies (GWAS) analysis. This allows crop breeders and genomic scientists without a programming background to conduct these analyses and create crop-specific workflows.

“PAG is currently the main international meeting touching both crop and livestock genomics, so it’s an invaluable chance to connect and share insights with research and breeding colleagues around the world,” said Hearne. “It’s also an important forum to highlight how we are linking upstream and field, and help others do the same.”

Kanwarpal Dhugga (left) takes a selfie with his colleagues in the background during the PAG conference. (Photo: Kanwarpal Dhugga/CIMMYT)
Kanwarpal Dhugga (left) takes a selfie with his colleagues in the background during the PAG conference. (Photo: Kanwarpal Dhugga/CIMMYT)
A farm worker applies fertilizer in a field of Staha maize for seed production at Suba Agro's Mbezi farm in Tanzania. (Photo: Peter Lowe/CIMMYT)

Study calls for better understanding of fertilizer prices faced by African smallholder farmers

Written by Rodrigo Ordóñez on . Posted in News. 1 Comment on Study calls for better understanding of fertilizer prices faced by African smallholder farmers

A farm worker applies fertilizer in a field of Staha maize for seed production at Suba Agro's Mbezi farm in Tanzania. (Photo: Peter Lowe/CIMMYT)
A farm worker applies fertilizer in a field of Staha maize for seed production at Suba Agro’s Mbezi farm in Tanzania. (Photo: Peter Lowe/CIMMYT)

Crop yields in sub-Saharan Africa are generally low. This is in large part because of low fertilizer use. A recent study of six countries in sub-Saharan Africa showed that just 35% of farmers applied fertilizer. Some possible reasons for this could be that farmers may be unaware of the efficacy of fertilizer use; or have degraded soils that do not respond to fertilizer; they may not have the cash to purchase it; or because unpredictable rainfall makes such investments risky. It may also be because local fertilizer prices make their use insufficiently profitable for many farmers.

To better understand the potential fertilizer demand in a particular location, it is important to know how crops respond to fertilizer under local conditions, but it is critical to understand crop responses in terms of economic returns. This requires information about local market prices of fertilizers and other inputs, as well as the prices that a farmer could receive from selling the crop.

While national-level fertilizer prices may be available, it is necessary to consider the extent to which prices vary within countries, reflecting transportation costs and other factors. In the absence of such data, analysis of household-level behaviors requires assumptions about the prices smallholder farmers face — assumptions which may not be valid. For example, evaluations of the returns to production technologies settings have often assumed spatially invariant input and output prices or, in other words, that all farmers in a country face the same set of prices. This is at odds with what we know about economic remoteness and the highly variable market access conditions under which African smallholders operate.

An obstacle to using empirical data on sub-national disparities in fertilizer prices is the scarcity of such data. A new study focused on the spatial discrepancies in fertilizer prices. The study compiled local market urea price in eighteen countries in sub-Saharan Africa for the period between 2010-2018 and used spatial interpolation models — using points with known values to approximate values at other unknown points — to predict local prices at locations for which no empirical data was available. It was conducted by scientists at University of California, Davis, the International Maize and Wheat Improvement Center (CIMMYT) and the International Food Policy Research Institute (IFPRI). The authors note that this is the first major attempt to systematically describe the spatial variability of fertilizer prices within the target countries and test the ability to estimate the price at unsampled locations.

Predicted relative urea price (local price divided by the observed median national price) for areas with crop land in eight East African countries.
Predicted relative urea price (local price divided by the observed median national price) for areas with crop land in eight East African countries.

“Our study uncovers considerable spatial variation in fertilizer prices within African countries and gives a much more accurate representation of the economic realities faced by African smallholders than the picture suggested by using national average prices,” said Camila Bonilla Cedrez, PhD Candidate at University of California, Davis. “We show that in many countries, this variation can be predicted for unsampled locations by fitting models of prices as a function of longitude, latitude, and additional predictor variables that capture aspects of market access, demand, and environmental conditions.”

Urea prices were generally found to be more expensive in remote areas or away from large urban centers, ports of entry or blending facilities. There were some exceptions, though. In Benin, Ghana and Nigeria, prices went down when moving away from the coast, with the possible explanation being market prices in areas with higher demand are lower. In other locations, imports of fertilizer from neighboring countries with lower prices may be affecting prices in another country or region, much like political influence. Politically, well-connected villages can receive more input subsidies compared to the less connected ones.

“The performance of our price estimation methods and the simplicity of our approach suggest that large scale price mapping for rural areas is a cost-effective way to provide more useful price information for guiding policy, targeting interventions, and for enabling more realistic applied microeconomic research. For example, local price estimates could be incorporated into household-survey-based analysis of fertilizer adoption,” explained Jordan Chamberlin, CIMMYT spatial economist. “In addition, such predictive ‘price maps’ can be incorporated into targeting and planning frameworks for agricultural investments. For example, to target technology promotion efforts to the areas where those technologies are most likely to be profitable.”

Predicted relative urea price (local price divided by the observed median national price) for areas with crop land in nine West African countries.
Predicted relative urea price (local price divided by the observed median national price) for areas with crop land in nine West African countries.

“The evidence we have compiled in this paper suggests that, while investments in more comprehensive and spatially representative price data collection would be very useful, we may utilize spatial price prediction models to extend the value of existing data to better reflect local price variation through interpolation,” explained Robert J. Hijmans, professor at University of California, Davis. “Even if imperfect, such estimates almost certainly better reflect farmers’ economic realities than assumptions of spatially constant prices within a given country. We propose that spatial price estimation methods such as the ones we employ here serve for better approximating heterogeneous economic market landscapes.”

This study has illustrated new ways for incorporating spatial variation in prices into efforts to understand the profitability of agricultural technologies across rural areas in sub-Saharan Africa.  The authors suggest that an important avenue for future empirical work would be to evaluate the extent to which the subnational price variation documented is a useful explanatory factor for observed variation in smallholder fertilizer use in sub-Saharan Africa, after controlling for local agronomic responses and output prices. One way to do that may be to integrate input and output price predictions into spatial crop models, and then evaluate the degree to which modeled fertilizer use profitability predicts observed fertilizer use rates across different locations.

Read the full study:
Spatial variation in fertilizer prices in Sub-Saharan Africa

Breaking Ground: Lara Roeven delves into complex gender dynamics

Written by Emma Orchardson on . Posted in Features.

Lara Roeven completed her undergraduate degree in social sciences at the University of Amsterdam in the Netherlands, where she focused primarily on political science in a program that combined this with the study of psychology, law and economics. “I liked it a lot because it gave me an interdisciplinary look at how social injustice manifests itself.”

Having worked on gender and social inclusion issues in the past, she had already heard of CGIAR and its research portfolio, but it was the interdisciplinarity of CIMMYT’s approach that prompted her to apply to the organization at the end of a study abroad program in Mexico. “I had a strong interest in agriculture and I’d always wanted to look at how gender and social inclusion issues affect women and marginalized groups within the context of rural, environmental or climate change, so this role seemed like a good fit.”

Since joining CIMMYT’s Gender and Social Inclusion research unit in January 2019, Roeven has been part of a team of researchers analyzing the ways in which gender norms and agency influence the ability of men, women and young people to learn about, access and adopt innovations in agriculture and natural resource management.

So far, Roeven has mainly been supporting data analysis and helping to produce literature reviews. She has contributed to a number of studies simultaneously over the past year, from the feminization of agriculture in India to changing gender norms in Tanzania. “It’s very interesting because you learn the particularities of many different countries, and the extent to which gender norms can differ and really influence people’s opportunities.”

Searching for nuance

A lot of research follows a similar pattern in highlighting the relationship between women’s work and empowerment, but realities on the ground are often more nuanced. In India, for example, well-established social structures add another layer of complexity to gender dynamics. “What I found interesting when we started looking into the ways in which gender and caste interrelate was that nothing is straightforward.”

Women from higher castes can actually be more isolated than women from lower ones, she explains, for whom it can be more accepted to pursue paid work outside of the home. However, lower-caste women also frequently experience high levels of poverty and vulnerability and face social exclusion in other realms of life.

“These dynamics are actually a lot more complicated than we usually think. And that’s why it’s so interesting to do this kind of comparative research where you can see how these issues manifest themselves in different areas, and what researchers or development practitioners working at ground level have to take into account in order to address the issues these women face.”

Eventually, Roeven hopes to pursue a PhD and a career in academia, but for the time being she’s enjoying working on research that has so much potential for impact. “There are many studies showing that gender gaps need to be closed in order to increase food security and eliminate hunger,” she says. “I feel like many interventions, extension services or trainings don’t always have the desired effect because they do not effectively reach women farmers or young people. Certain people are continuously left out.”

Conducting this kind of research is a crucial step in working towards empowering women across the world, and Roeven would like to see more researchers incorporating this into their work, and really taking on gender as a relational concept. “We can keep on conducting research within the Gender and Social Inclusion research unit, but it would be interesting if our approaches could be mainstreamed in other disciplinary areas as well.”

Though it might not be easy, Roeven emphasizes that it is necessary in order to have an impact and prevent innovations from exacerbating gender and social inequality. “Besides,” she adds, “I think it’s great when research has a social relevance.”

CIMMYT and JAAS representatives signed the agreement to establish a screening facility for Fusarium head blight in Nanjing, China.

New international partnership to identify and develop resistance to dangerous wheat disease

Written by Marcia MacNeil on . Posted in Press releases.

CIMMYT and JAAS representatives signed the agreement to establish a screening facility for Fusarium head blight in Nanjing, China.
CIMMYT and JAAS representatives signed the agreement to establish a screening facility for Fusarium head blight in Nanjing, China.

The CGIAR Research Program on Wheat (WHEAT), led by the International Maize and Wheat Improvement Center (CIMMYT) and the International Center for Agriculture in the Dry Areas (ICARDA), recently announced a partnership with the Jiangsu Academy of Agricultural Sciences (JAAS) in China to open a new screening facility for the deadly and fast-spreading fungal wheat disease Fusarium head blight, or FHB.

The new facility, based near the JAAS headquarters in Nanjing, aims to capitalize on CIMMYT’s world-class collection of disease-resistant wheat materials and the diversity of the more than 150,000 wheat germplasm in its Wheat Germplasm Bank to identify and characterize genetics of sources of resistance to FHB and, ultimately, develop new FHB-resistant wheat varieties that can be sown in vulnerable areas around the world.

“The participation of JAAS in the global FHB breeding network will significantly contribute to the development of elite germplasm with good FHB resistance,” said Pawan Singh, head of wheat pathology for CIMMYT.

“We expect that in 5 to 7 years, promising lines with FHB resistance will be available for deployment by both CIMMYT and China to vulnerable farmers, thanks to this new station.”

Fusarium head blight is one of the most dangerous wheat diseases. It can cause up to 50% yield loss and produce severe mycotoxin contamination in food and feed, which affects farmers in the form of increased health care and veterinary care costs, and reduced livestock production.

Even consuming low to moderate amounts of Fusarium mycotoxins may impair intestinal health, immune function and fitness. Deoxynivalenol (DON), a mycotoxin the fungus inducing FHB produces, has been linked to symptoms including nausea, vomiting, and diarrhea. In livestock, Fusarium mycotoxin consumption exacerbates infections with parasites, bacteria and viruses — such as occidiosis in poultry, salmonellosis in pigs and mice, colibacillosis in pigs, necrotic enteritis in poultry and swine respiratory disease.

In China, the world’s largest wheat producer, Fusarium head blight is the most important biotic constraint to production.

The disease is extending quickly beyond its traditionally vulnerable wheat growing areas in East Asia, North America, the southern cone of South America, Europe and South Africa — partly as a result of global warming, and partly due to otherwise beneficial, soil-conserving farming practices such as wheat-maize rotation and reduced tillage.

“Through CIMMYT’s connections with national agricultural research systems in developing countries, we can create a global impact for JAAS research, reaching the countries that are expected to be affected the expansion of FHB epidemic area,” said Xu Zhang, head of Triticeae crops research group at the Institute of Food Crops of the Jiangsu Academy of Agricultural Sciences.

The new collaborative effort will target Fusarium head blight research but could potentially expand to research on other wheat diseases as well. Wheat blast, for example, is a devastating disease that spread from South America to Bangladesh in 2016. Considering the geographical closeness of Bangladesh and China, a collaboration with CIMMYT, as one of the leading institutes working on wheat blast, could have a strong impact.

Although the platform is new, the two institutions have a longstanding relationship. The bilateral collaboration between JAAS and CIMMYT began in early 1980s with a shuttle breeding program between China and Mexico to speed up breeding for Fusarium head blight resistance. The two institutions also conducted extensive germplasm exchanges in the 1980s and 1990s, which helped CIMMYT improve resistance to Fusarium head blight, and helped JAAS improve wheat rust resistance.

Currently, JAAS and CIMMYT are working on Fusarium head blight under a project funded by the National Natural Science Foundation of China called “Elite and Durable Resistance to Wheat Fusarium Head Blight” that aims to deploy resistance genes/QTL in Chinese and CIMMYT germplasm and for use in wheat breeding.

This research is supported by CGIAR Fund Donors.

INTERVIEW OPPORTUNITIES:

Xinyao He, Wheat Pathologist and Geneticist, Global Wheat Program, CIMMYT. x.he@cgiar.org, +52 55 5804 2004 ext. 2218

FOR MORE INFORMATION, CONTACT THE MEDIA TEAM:

Marcia MacNeil, Communications Officer, CGIAR Research Program on Wheat. m.macneil@cgiar.org, +52 55 5804 2004 ext. 2070.

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

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. For more information, visit staging.cimmyt.org.

ABOUT JAAS:

Jiangsu Academy of Agricultural Sciences (JAAS), a comprehensive agricultural research institution since 1931, strives to make agriculture more productive and sustainable through technology innovation. JAAS endeavors to carry out the Plan for Rural Vitalization Strategy and our innovation serves agriculture, farmers and the rural areas. JAAS provide more than 80% of new varieties, products and techniques in Jiangsu Province, teach farmers not only to increase yield and quality, but also to challenge conventional practices in pursuit of original ideas in agro-environment protection. For more information, visit home.jaas.ac.cn/.

Some of the participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop held on December 2, 2019, in Nairobi, Kenya. (Photo: Kipenz Films/CIMMYT)

Making seed systems work for men and women

Written by JĂ©rĂŽme Bossuet on . Posted in News.

Some of the participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop held on December 2, 2019, in Nairobi, Kenya. (Photo: Kipenz Films/CIMMYT)
Some of the participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop held on December 2, 2019, in Nairobi, Kenya. (Photo: Kipenz Films/CIMMYT)

One important pillar of Africa’s food security is ensuring that quality seeds are developed and delivered to the millions of smallholder farmers that feed the continent. Reaching the last mile with climate-resilient and disease-resistant seeds remains a challenge in many parts of sub-Saharan Africa. “In countries where we invested in seed systems initiatives, we have seen an upsurge in smallholder farm productivity,” said Joseph DeVries, the President of Seed Systems Group. “A story that is not adequately told is that of the important role of women along the seed value chain. In Kenya, 40% of owners of agrodealer shops are women. The farming sector would gain a lot with a stronger role for women in developing a gender-sensitive seed sector,” he noted.

DeVries was one of the keynote speakers at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop organized by the International Maize and Wheat Improvement Center (CIMMYT) on December 2, 2019 in Nairobi, Kenya. The meeting brought together researchers, development practitioners, donors, farmers’ representatives, farmers, seed companies and other private actors.

CIMMYT’s Gender and Development Specialist, Rahma Adam, observed that with the African seed sector being male-dominated, the patriarchal nature of the family and community systems make it harder for women to penetrate the sector easily. For instance, many women employed in the sector mostly dominate the low-paying jobs. Workshop participants agreed that while there are many opportunities for women in the sector, the barriers to entry are many.

Joseph DeVries, President of Seed Systems Group, addresses participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop. (Photo: Kipenz Films/CIMMYT)
Joseph DeVries, President of Seed Systems Group, addresses participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop. (Photo: Kipenz Films/CIMMYT)

Acknowledging the gender gap in agriculture

“Decades of gender research have shown that where there is gender inequality, there is food insecurity,” remarked Jemimah Njuki, senior program specialist from the International Development Research Center (IDRC). The gender gap in agricultural productivity observed in sub-Saharan Africa — up to 30% in countries like Nigeria and Malawi — is often explained by unequal access to inputs and male labor for heavy operations such as land preparation, access to knowledge and capital.

Addressing such unequal access is not enough, according to Njuki. To switch to a truly gender-sensitive food system, “you need to address social norms and women’s agency and what they can do on their own.” Taking the example of financial services, women often find difficulties obtaining loans because banks ask for collateral like title deeds, which are typically in the name of the husband or a male in-law. Yet, women are very good at repaying their loans on time. Making finance institutions “womanable” as Njuki put it, would be good for the welfare of women and their family, hence good for business.

Jemimah Njuki, senior program officer at the International Development Research Center (IDRC), speaks at the workshop. (Photo: Kipenz Films/CIMMYT)
Jemimah Njuki, senior program officer at the International Development Research Center (IDRC), speaks at the workshop. (Photo: Kipenz Films/CIMMYT)

Is there such a thing as seed for women farmers?

Within a household, who has a say in buying new seeds? Do men and women farmers look for the same traits and attributes?

A study conducted in Ethiopia, Kenya, Tanzania and Uganda by Paswel Marenya, a senior agricultural economist at CIMMYT, revealed that in many cases, the man has a greater say in selecting new seed varieties. Other research shows that beyond grain yield, the characteristics of “a good variety” differ between men and women farmers. In the study, both genders mention what they were willing to pay as trade-off against yield. Women would favor a variety with a longer grain shelf-life (ability to store 3-4 months). Men preferred a variety that performs well with low fertilizer requirements. Equally, women farmers engaged in participatory varietal selections tended to provide more nuanced evaluation of varieties than men. Despite this evidence, seed companies do not often adapt their seed marketing strategy according to gender.

Making institutions and seed systems gender-sensitive

CIMMYT’s gender and development specialist Rahma Adam addresses participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop. (Photo: Kipenz Films/CIMMYT)
CIMMYT’s gender and development specialist Rahma Adam addresses participants at the “Gender dynamics in seed systems in sub-Saharan Africa” workshop. (Photo: Kipenz Films/CIMMYT)

Are there missed opportunities for the seed sector by being “gender-blind”? Rahma Adam believes “the current one-size-fits-all model does not work for many women farmers”. She advises seed companies to be more gender-sensitive when organizing seed marketing operations. Women tend to have less time to attend field demos, the major marketing tool for seed companies. Packaging may not be adapted to suit their more limited purchasing power.

There are good examples of women seed entrepreneurs that have established their niche and reach out to women farmers. Janey Leakey, Director of Leldet Seed Company in Nakuru, Kenya, is one such example. She markets small seed packs called Leldet bouquet, a mix of improved maize and legume seeds at the cost of a cup of tea, to enable women farmers test new varieties.

For the more informal sweet potato seed systems, many women farmers have been successfully engaged in lucrative vine multiplication, thanks to the use of women extensionists and women groups to teach appropriate storage techniques in drought-prone regions. “Such seed business can empower women within the household,” noted Jan Low, co-leader of the Sweetpotato for Profit and Health Initiative (SPHI) at the International Potato Center (CIP) and 2016 World Food Prize Laureate. A woman vine multiplier was able to negotiate with the husband for more land and water access to increase production.

Many other important actors in the public, private and development sectors have also been more deliberate in structuring some of their project or business implementation plans to include or benefit more women in the seed value chain. Among the players are CARE International, Kenya’s Ministry of Agriculture, the Centre for Agriculture and Bioscience International (CABI), the Seed Trade Association of Kenya (STAK), SeedCo, the Agricultural Market Development Trust (AGMARK), World Vision, the Food and Agriculture Organization (FAO), which attended and participated very actively in this workshop.

Some of the plans entail helping more women to access information on climate change to understand their cropping seasons, contracting women farmers as seed out-growers, encouraging and supporting them to join forces to produce seed in group settings. Some of these actors also train women to enhance their entrepreneurial acumen, help them to access finance, obtain the appropriate labor and time-saving machinery, and acquire small seed packs.

Ultimately, designing a seed system that works for men and women requires a holistic approach, from building women’s agency, addressing norms and unequal access to resources. It requires time, dedication, financial and human resources, as well as capabilities and multi-stakeholder collaboration. “The main take-home message is that building a gender-sensitive seed system starts with us,” said Amanda Lanzarone, program officer at the Bill & Melinda Gates Foundation.

Seed systems in Nepal are going digital

Written by Mary Donovan on . Posted in Features.

In Nepal, it takes at least a year to collate the demand and supply of a required type and quantity of seed. A new digital seed information system is likely to change that, as it will enable all value chain actors to access information on seed demand and supply in real time. The information system is currently under development, as part of the Nepal Seed and Fertilizer (NSAF) project, funded by the United States Agency for International Development (USAID) and led by the International Maize and Wheat Improvement Center (CIMMYT).

In this system, a national database allows easy access to an online seed catalogue where characteristics and sources of all registered varieties are available. A balance sheet simultaneously gathers and shares real time information on seed demand and supply by all the stakeholders. The digital platform also helps to plan and monitor seed production and distribution over a period of time.

Screenshot of the DESIS portal, still under development.
Screenshot of the DESIS portal, still under development.

Challenges to seed access 

Over 2,500 seed entrepreneurs engaged in production, processing and marketing of seeds in Nepal rely on public research centers to get early generation seeds of various crops, especially cereals, for subsequent seed multiplication.

“The existing seed information system is cumbersome and the process of collecting information takes a minimum of one year before a seed company knows where to get the required amount and type of seed for multiplication,” said Laxmi Kant Dhakal, Chairperson of the Seed Entrepreneurs Association of Nepal (SEAN) and owner of a seed company in the far west of the country. Similarly, more than 700 rural municipalities and local units in Nepal require seeds to multiply under farmers cooperatives in their area.

One of the critical challenges farmers encounter around the world is timely access to quality seeds, due to unavailability of improved varieties, lack of information about them, and weak planning and supply management. Asmita Shrestha, a farmer in Surkhet district, has been involved in maize farming for the last 20 years. She is unaware of the availability of different types of maize that can be productive in the mid-hill region and therefore loses the opportunity to sow improved maize seeds and produce better harvests.

In Sindhupalchowk district, seed producer Ambika Thapa works in a cooperative and produces hybrid tomato seeds. Her problem is getting access to the right market that can provide a good profit for her efforts. A kilogram of hybrid tomato seed can fetch up to $2,000 in a retail and upscale market. However, she is not getting a quarter of this price due to lack of market information and linkages with buyers. This is the story of many Nepali female farmers, who account for over 60% of the rural farming community, where lack of improved technologies and access to profitable markets challenge farm productivity.

At present, the Seed Quality Control Center (SQCC), Nepal Agriculture Research Council (NARC), the Centre for Crop Development and Agro Bio-diversity Conservation (CCDABC) and the Vegetable Development Directorate (VDD) are using paper-based data collection systems to record and plan seed production every year. Aggregating seed demand and supply data and generating reports takes at least two to three months. Furthermore, individual provinces need to convene meetings to collect and estimate province-level seed demand that must come from rural municipalities and local bodies.

A digital technology solution 

CIMMYT and its partners are leveraging digital technologies to create an integrated Digitally Enabled Seed Information System (DESIS) that is efficient, dynamic and scalable. This initiative was the result of collaboration between U.S. Global Development Lab and USAID under the Digital Development for Feed the Future (D2FTF) initiative, which aimed to demonstrate that digital tools and approaches can accelerate progress towards food security and nutrition goals.

FHI 360 talked to relevant stakeholders in Nepal to assess their needs, as part of the Mobile Solutions Technical Assistance and Research (mSTAR) project, funded by USAID. Based on this work, CIMMYT and its partners identified a local IT expert and launched the development of DESIS.

The Digitally Enabled Seed Information System (DESIS) will help to create market and research linkages for Nepal's seed system.
The Digitally Enabled Seed Information System (DESIS) will help to create market and research linkages for Nepal’s seed system.

DESIS will provide an automated version of the seed balance sheet. Using unique logins, agencies will be able to place their requests and seed producers to post their seed supplies. The platform will help to aggregate and manage breeder, foundation and source seed, as well as certified and labelled seed. The system will also include an offline seed catalogue where users can view seed characteristics, compare seeds and select released and registered varieties available in Nepal. Users can also generate seed quality reports on batches of seeds.

“As the main host of this system, the platform is well designed and perfectly applicable to the needs of SQCC,” said Madan Thapa, Chief of SQCC, during the initial user tests held at his office. Thapa also expressed the potential of the platform to adapt to future needs.

The system will also link farmers to seed suppliers and buyers, to build a better internal Nepalese seed market. The larger goal of DESIS is to help farmers grow better yields and improve livelihoods, while contributing to food security nationwide.

DESIS is planned to roll out in Nepal in early 2020. Primary users will be seed companies, agricultural research centers, the Ministry of Agriculture and Livestock Development, agrovets, cooperatives, farmers, development partners, universities, researchers, policy makers, and international institutions. The system is based on an open source software and will be available on a mobile website and Android app.

“It is highly secure, user friendly and easy to update,” said Warren Dally, an IT consultant who currently oversees the technical details of the software and the implementation process.

Farmers in Nepal show their most popular digital tool, a mobile phone, during a training. (Photo: Bandana Pradhan/CIMMYT)
Farmers in Nepal show their most popular digital tool, a mobile phone, during a training. (Photo: Bandana Pradhan/CIMMYT)

As part of the NSAF project, CIMMYT is also working to roll out digital seed inspection and a QR code-based quality certification system. The higher vision of the system is to create a seed data warehouse that integrates the seed information portal and the seed market information system.

Digital solutions are critical to link the agricultural market with vital information so farmers can make decisions for better production and harvest. It will not be long before farmers like Asmita and Ambika can easily access information using their mobile phones on the type of variety suitable to grow in their region and the best market to sell their products.

Fruitful year for wheat, maize varieties

Written by Mary Donovan on . Posted in In the media.

Pakistan has released 20 new high-yielding, disease-resistant and climate change–resilient wheat and maize varieties during the year.

The achievement came mainly on the back of a partnership between the International Maize and Wheat Improvement Centre (CIMMYT) and the Pakistan Agricultural Research Council (PARC) with support from the US development agency USAID.

Read more here.

Breaking Ground: Mandeep Randhawa fights wheat diseases using genetic resistance tools

Written by Alison Doody on . Posted in Features.

With new pathogens of crop diseases continuously emerging and threatening food production and security, wheat breeder and wheat rust pathologist Mandeep Randhawa and his colleagues at the International Maize and Wheat Improvement Center (CIMMYT) and the Kenya Agricultural and Research Organization (KALRO) are working tirelessly to identify new sources of rust resistance through gene mapping tools and rigorous field testing.

With wheat accounting for around 20% of the world’s calories and protein, outbreaks of disease can pose a major threat to global food security and farmer livelihoods. The most common and prevalent diseases are wheat rusts — fungal diseases that can be dispersed by wind over long distances, which can quickly cause devastating epidemics and dramatically reduce wheat yields.

To tackle the problem, Randhawa and his colleagues work on developing improved wheat varieties by combining disease-resistant traits with high yielding ones, to ensure that farmers can get the best wheat yields possible while evading diseases.

Screening for disease

A native of the Punjab state of India, Randhawa joined CIMMYT as a Post-doctoral Fellow in Wheat Rust Resistance Genetics in 2015. He now works as a CIMMYT scientist and manages the Stem Rust Screening Platform in Njoro, Kenya, which supports screening against stem rust of up to 50,000 wheat lines per year from as many as 20 countries. Over the last 10 years about 650,000 wheat lines have been evaluated for stem rust resistance at the facility.

“The platform’s main focus is on evaluation of wheat lines against the stem rust race Ug99 and its derivative races prevalent in Eastern to Southern Africa, the Middle East and Iran,” explains Randhawa. Ug99 is a highly virulent race of stem rust, first discovered two decades ago in Uganda. The race caused major epidemics in Kenya in 2002 and 2004.

“East African highlands are also a hotspot for stripe wheat rust so, at the same time, we evaluate wheat lines for this disease,” adds Randhawa.

The facility supports a shuttle breeding scheme between CIMMYT Mexico and Kenya, which allows breeders to plant at two locations, select for stem rust (Ug99) resistance and speed up the development of disease-resistant wheat lines.

“Wheat rusts in general are very fast evolving and new strains are continuously emerging. Previously developed rust-resistant wheat varieties can succumb to new virulent strains, making the varieties susceptible. If the farmers grow susceptible varieties, rust will take on those varieties, resulting in huge yield losses if no control measures are adopted,” explains Randhawa.

Helping and sharing

For Randhawa, helping farmers is the main goal. “Our focus is on resource-poor farmers from developing countries. They don’t have enough resources to buy the fungicide. Using chemicals to control diseases is expensive and harmful to the environment. So in that case we provide them solutions in the form of wheat varieties which are high yielding but they have long-lasting resistance to different diseases as well.”

Under the Borlaug Global Rust Initiative, Randhawa and his team collaborate with KALRO to facilitate the transfer of promising wheat lines with high yield potential and rust resistance to a national pipeline for soon-to-be-released wheat varieties.

When he is not screening for wheat rusts diseases, Randhawa  also organizes annual trainings on stem rust diagnosis and germplasm evaluation for young wheat breeders and pathologists from developing countries. More than 220 wheat researchers have been trained over the last decade.

Mandeep Randhawa (left) talks to the participants of the 11th annual training on stem rust notetaking and germplasm evaluation. (Photo: Jerome Bossuet/CIMMYT)
Mandeep Randhawa (left) talks to the participants of the 11th annual training on stem rust notetaking and germplasm evaluation. (Photo: Jerome Bossuet/CIMMYT)

A farmer at heart

Randhawa always had an interest in agricultural science. “Initially, my parents wanted me to be a medical doctor, but I was more interested in teaching science to school students,” he says. “Since my childhood, I used to hear of wheat and diseases affecting wheat crops, especially yellow rust — which is called peeli kungi in my local language.” This childhood interest led him to study wheat genetics at Punjab Agricultural University in Ludhiana, India.

His mentors encouraged him to pursue a doctorate from the Plant Breeding Institute (PBI) Cobbitty at the University of Sydney in Australia, which Randhawa describes as “the mecca of wheat rust research.” He characterized two new stripe rust resistance genes formally named as Yr51 and Yr57 from a wheat landrace. He also contributed to the mapping of a new adult plant stem rust resistance gene Sr56.

Coming from India, his move to Australia was a pivotal moment for him in his career and his identity — he now considers himself Indian-Australian.

If he had not become a scientist, Randhawa would be a farmer, he says. “Farming is my passion, as I like to grow crops and to have rich harvest using my scientific knowledge and modern technologies.”

At CIMMYT, Randhawa has a constant stream of work identifying and characterizing new sources of rust resistance. “Dealing with different types of challenges in the wheat field is what keeps me on my toes. New races of diseases are continuously emerging. As pests and pathogens have no boundaries, we must work hand-in-hand to develop tools and technologies to fight fast evolving pests and pathogens,” says Randhawa.

He credits his mentor Ravi Singh, Scientist and Head of Global Wheat Improvement at CIMMYT, for motivating him to continue his work. “Tireless efforts and energetic thoughts of my professional guru Dr. Ravi Singh inspire and drive me to achieve research objectives.”

CIMMYT's multi-crop, multi-use zero-tillage seeder at work on a long-term conservation agriculture trial plot at the center's global headquarters in Mexico. Maize crop residues are visible in the foreground. (Photo: CIMMYT)

New publications: Durum wheat selection under zero tillage increases early vigor and is neutral to yield

Written by Alison Doody on . Posted in Publications.

CIMMYT's multi-crop, multi-use zero-tillage seeder at work on a long-term conservation agriculture trial plot at the center's global headquarters in Mexico. Maize crop residues are visible in the foreground. (Photo: CIMMYT)
CIMMYT’s multi-crop, multi-use zero-tillage seeder at work on a long-term conservation agriculture trial plot at the center’s global headquarters in Mexico. Maize crop residues are visible in the foreground. (Photo: CIMMYT)

New research published in Field Crops Research by scientists at the International Maize and Wheat Improvement Center (CIMMYT) responds to the question of whether wheat varieties need to be adapted to zero tillage conditions.

With 33% of global soils already degraded, agricultural techniques like zero tillage — growing crops without disturbing the soil with activities like plowing — in combination with crop residue retention, are being considered to help protect soils and prevent further degradation. Research has shown that zero tillage with crop residue retention can reduce soil erosion and improve soil structure and water retention, leading to increased water use efficiency of the system. Zero tillage has also been shown to be the most environmentally friendly among different tillage techniques.

While CIMMYT promotes conservation agriculture, of which zero tillage is a component, many farmers who use CIMMYT wheat varieties still use some form of tillage. As farmers adopt conservation agriculture principles in their production systems, we need to be sure that the improved varieties breeders develop and release to farmers can perform equally well in zero tillage as in conventional tillage environments.

The aim of the study was to find out whether breeding wheat lines in a conservation agriculture environment had an effect on their adaptability to one tillage system or another, and whether separate breading streams would be required for each tillage system.

The scientists conducted parallel early generation selection in sixteen populations from the breeding program. The best plants were selected in parallel under conventional and zero-till conditions, until 234 and 250 fixed lines were obtained. They then grew all 484 wheat lines over the course of three seasons near Ciudad Obregon, Sonora, Mexico, under three different environments — zero tillage, conventional tillage, and conventional tillage with reduced irrigation — and tested them for yield and growth traits.

The authors found that yields were better under zero tillage than conventional tillage for all wheat lines, regardless of how they had been bred and selected, as this condition provided longer water availability between irrigations and mitigated inter-irrigation water stress.

The main result was that selection environment, zero-till versus conventional till, did not produce lines with specific adaptation to either conditions, nor did it negatively impact the results of the breeding program for traits such as plant height, tolerance to lodging and earliness.

One trait which was slightly affected by selection under zero-till was early vigor — the speed at which crops grow during the earliest stage of growth. Early vigor is a useful adaptive trait in conservation agriculture because it allows the crop to cope with high crop residue loads — materials left on the ground such as leaves, stems and seed pods — and can improve yield through rapid development of maximum leaf area in dry environments. Results showed that varieties selected under zero tillage showed slightly increased early vigor which means that selection under zero tillage may drive a breeding program towards the generalization of this useful attribute.

The findings demonstrate that CIMMYT’s durum wheat lines, traditionally bred for wide adaptation, can be grown, bred, and selected under either tillage conditions without negatively affecting yield performance. This is yet another clear demonstration that breeding for wide adaptation, a decades-long tradition within CIMMYT’s wheat improvement effort, is a suitable strategy to produce varieties that are competitive in a wide range of production systems. The findings represent a major result for wheat breeders at CIMMYT and beyond, with the authors concluding that it is not necessary to have separate breeding programs to address the varietal needs of either tillage systems.

This work was implemented by CIMMYT as part of the CGIAR Research Program on Wheat (WHEAT).

Read the full study:
Durum wheat selection under zero tillage increases early vigor and is neutral to yield.

Hafiz Uddin, a farmer from Ulankhati, Tanpuna, Barisal, Bangladesh. He used seeder fertilizer drills to plant mung beans on one acre of land, which resulted in a better yield than planting manually. (Photo: Ranak Martin)

Policy brief highlights opportunities to promote balanced nutrient management in South Asia

Written by Matthew O'Leary on . Posted in Publications.

Hafiz Uddin, a farmer from Ulankhati, Tanpuna, Barisal, Bangladesh. He used seeder fertilizer drills to plant mung beans on one acre of land, which resulted in a better yield than planting manually. (Photo: Ranak Martin)
Hafiz Uddin, a farmer from Ulankhati, Tanpuna, Barisal, Bangladesh. He used seeder fertilizer drills to plant mung beans on one acre of land, which resulted in a better yield than planting manually. (Photo: Ranak Martin)

Over the last few decades, deteriorating soil fertility has been linked to decreasing agricultural yields in South Asia, a region marked by inequities in food and nutritional security.

As the demand for fertilizers grows, researchers are working with government and businesses to promote balanced nutrient management and the appropriate use of organic amendments among smallholder farmers. The Cereal Systems Initiative for South Asia (CSISA) has published a new policy brief outlining opportunities for innovation in the region.

Like all living organisms, crops need access to the right amount of nutrients for optimal growth. Plants get nutrients — like nitrogen, phosphorus, and potassium, in addition to other crucially important micronutrients — from soils and carbon, hydrogen, oxygen from the air and water. When existing soil nutrients are not sufficient to sustain good crop yields, additional nutrients must be added through fertilizers or manures, compost or crop residues. When this is not done, farmers effectively mine the soil of fertility, producing short-term gains, but undermining long-term sustainability.

Nutrient management involves using crop nutrients as efficiently as possible to improve productivity while reducing costs for farmers, and also protecting the environment by limiting greenhouse gas emissions and water quality contamination. The key behind nutrient management is appropriately balancing soil nutrient inputs — which can be enhanced when combined with appropriate soil organic matter management — with crop requirements. When the right quantities are applied at the right times, added nutrients help crops yields flourish. On the other hand, applying too little will limit yield and applying too much can harm the environment, while also compromising farmers’ ability to feed themselves or turn profits from the crops they grow.

Smallholder farmers in South Asia commonly practice poor nutrition management with a heavy reliance on nitrogenous fertilizer and a lack of balanced inputs and micronutrients. Declining soil fertility, improperly designed policy and nutrient management guidelines, and weak fertilizer marketing and distribution problems are among the reasons farmers fail to improve fertility on their farms. This is why it is imperative to support efforts to improve soil organic matter management and foster innovation in the fertilizer industry, and find innovative ways to target farmers, provide extension services and communicate messages on cost-effective and more sustainable strategies for matching high yields with appropriate nutrient management.

Cross-country learning reveals opportunities for improved nutrient management. The policy brief is based on outcomes from a cross-country dialogue facilitated by CSISA earlier this year in Kathmandu. The meeting saw researchers, government and business stakeholders from Bangladesh, India, Nepal, and Sri Lanka discuss challenges and opportunities to improving farmer knowledge and access to sufficient nutrients. Several key outcomes for policy makers and representatives of the agricultural development sector were identified during the workshop, and are included in the brief.

Extension services as an effective way to encourage a more balanced use of fertilizers among smallholder farmers. There is a need to build the capacity of extension to educate smallholders on a plant’s nutritional needs and proper fertilization. It also details how farmers’ needs assessments and human-centered design approaches need to be integrated while developing and delivering nutrient application recommendations and extension materials.

Nutrient subsidies must be reviewed to ensure they balance micro and macro-nutrients. Cross-country learning and evidence sharing on policies and subsidies to promote balanced nutrient application are discussed in the brief, as is the need to balance micro and macro-nutrient subsidies, in addition to the organization of subsidy programs in ways that assure farmers get access the right nutrients when and where they are needed the most. The brief also suggests additional research and evidence are needed to identify ways to assure that farmers’ behavior changes in response to subsidy programs.

Market, policy, and product innovations in the fertilizer industry must be encouraged. It describes the need for blended fertilizer products and programs to support them. A blend is made by mixing two or more fertilizer materials. For example, particles of nitrogen, phosphate and small amounts of secondary nutrients and micronutrients mixed together. Experience with blended products are uneven in the region, and markets for blends are nascent in Bangladesh and Nepal in particular. Cross-country technical support on how to develop blending factories and markets could be leveraged to accelerate blended fertilizer markets and to identify ways to ensure equitable access to these potentially beneficial products for smallholder farmers.

Download the CSISA Policy and Research Note:
Development of Balanced Nutrient Management Innovations in South Asia: Lessons from Bangladesh, India, Nepal, and Sri Lanka.

The CSISA project is led by CIMMYT with partners the International Rice Research Institute (IRRI) and the International Food Policy Research Institute (IFPRI) and funded by the U.S. Agency for International Development and the Bill & Melinda Gates Foundation.