research: Sustainable agrifood systems

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 Jérôme Bossuet on January 10, 2020. Posted in News.

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)

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)

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)

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 January 6, 2020. 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.

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)

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.

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 December 18, 2019. Posted in Publications.

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 December 17, 2019. Posted in Publications.

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.

Malawi farmers nurture soil grow incomes with conservation agriculture

Written by Mary Donovan on December 14, 2019. Posted in In the media.

The International Maize and Wheat Improvement Center (CIMMYT) introduced farmers Kassim Massi and Joyce Makawa to conservation agriculture, along with five other families in their community.

Can African smallholders farm themselves out of poverty?

Written by Mary Donovan on December 12, 2019. Posted in In the media.

How big do farms need to be to enable farmers to escape poverty by farming alone? And what alternative avenues can lead them to sustainable development? New paper explores how much rural households can benefit from agricultural intensification.

What is wheat blast?

Written by Matthew O'Leary on December 11, 2019. Posted in Explainers. 7 Comments on What is wheat blast?

What is wheat blast disease?

Wheat blast is a fast-acting and devastating fungal disease that threatens food safety and security in tropical areas in South America and South Asia. Directly striking the wheat ear, wheat blast can shrivel and deform the grain in less than a week from the first symptoms, leaving farmers no time to act.

The disease, caused by the fungus Magnaporthe oryzae pathotype triticum (MoT), can spread through infected seeds and survives on crop residues, as well as by spores that can travel long distances in the air.

Magnaporthe oryzae can infect many grasses, including barley, lolium, rice, and wheat, but specific isolates of this pathogen generally infect limited species; that is, wheat isolates infect preferably wheat plants but can use several more cereal and grass species as alternate hosts. The Bangladesh wheat blast isolate is being studied to determine its host range. The Magnaporthe oryzae genome is well-studied but major gaps remain in knowledge about its epidemiology.

The pathogen can infect all aerial wheat plant parts, but maximum damage is done when it infects the wheat ear. It can shrivel and deform the grain in less than a week from first symptoms, leaving farmers no time to act.

Where is wheat blast found?

First officially identified in Brazil in 1985, the disease is widespread in South American wheat fields, affecting as much as 3 million hectares in the early 1990s. It continues to seriously threaten the potential for wheat cropping in the region.

In 2016, wheat blast spread to Bangladesh, which suffered a severe outbreak. It has impacted around 15,000 hectares of land in eight districts, reducing yield on average by as much as 51% in the affected fields.

Wheat-producing countries and presence of wheat blast.

How does blast infect a wheat crop?

Wheat blast spreads through infected seeds, crop residues as well as by spores that can travel long distances in the air.

Blast appears sporadically on wheat and grows well on numerous other plants and crops, so rotations do not control it. The irregular frequency of outbreaks also makes it hard to understand or predict the precise conditions for disease development, or to methodically select resistant wheat lines.

At present blast requires concurrent heat and humidity to develop and is confined to areas with those conditions. However, crop fungi are known to mutate and adapt to new conditions, which should be considered in management efforts.

How can farmers prevent and manage wheat blast?

There are no widely available resistant varieties, and fungicides are expensive and provide only a partial defense. They are also often hard to obtain or use in the regions where blast occurs, and must be applied well before any symptoms appear — a prohibitive expense for many farmers.

The Magnaporthe oryzae fungus is physiologically and genetically complex, so even after more than three decades, scientists do not fully understand how it interacts with wheat or which genes in wheat confer durable resistance.

Researchers from the International Maize and Wheat Improvement Center (CIMMYT) are partnering with national researchers and meteorological agencies on ways to work towards solutions to mitigate the threat of wheat blast and increase the resilience of smallholder farmers in the region. Through the USAID-supported Cereal Systems Initiative for South Asia (CSISA) and Climate Services for Resilient Development (CSRD) projects, CIMMYT and its partners are developing agronomic methods and early warning systems so farmers can prepare for and reduce the impact of wheat blast.

CIMMYT works in a global collaboration to mitigate the threat of wheat blast, funded by the Australian Centre for International Agricultural Research (ACIAR), the CGIAR Research Program on Wheat (WHEAT), the Indian Council of Agricultural Research (ICAR) and the Swedish Research Council (Vetenskapsrådet). Some of the partners who collaborate include the Bangladesh Wheat and Maize Research Institute (BWMRI), Bolivia’s Instituto Nacional de Innovación Agropecuaria y Forestal (INIAF), Kansas State University and the Agricultural Research Service of the US (USDA-ARS).

Can African smallholders farm themselves out of poverty?

Written by Mary Donovan on December 11, 2019. Posted in In the media.

How big do farms need to be to enable farmers to escape poverty by farming alone? And what alternative avenues can lead them to sustainable development?

These issues were explored in a paper in which we examined how much rural households can benefit from agricultural intensification. In particular we, together with colleagues, looked at the size of smallholder farms and their potential profitability and alternative strategies for support. In sub-Saharan Africa smallholder farms are, on average, smaller than two hectares.

Halima Bibi stands on her field in the district of Malda, West Bengal, India.

A switch to success

Written by Rodrigo Ordóñez on December 9, 2019. Posted in News.

In recent years, due to increasing demand and financial advantage, maize is gaining importance as a significant cash crop in West Bengal, India.

Halima Bibi is one of the farmers who embraced the possibilities of the crop. All the hard work she put into maize cultivation paid off when she learnt that she would receive the Krishi Karman Prize, awarded by India’s Ministry of Agriculture, for best maize production for the year 2017-2018. “I couldn’t believe my ears when officials from the state agriculture department told me that I had won the award,” Bibi excitedly shared.

As most other farmers in the district of Malda, Bibi and her husband Zakir Hossain were growing rice in their 10-bigha (3.3-acre) land, but life was still a struggle for the couple and their two children, trying to make ends meet.

Life took a turn for Bibi and her family when she observed field activities of the Sustainable and Resilient Farming Systems Intensification in the Eastern Gangetic Plains (SRFSI) project and she realized the importance of no-till maize cultivation. In 2015, she hired a zero-till multi-crop planter and sowed maize in her land. Since then, there was no looking back.

“When I learnt about the high demand for maize, we started cultivating the crop on half of our land, but gradually shifted to growing maize across our entire 10 bighas,” Bibi said. “The agriculture department helped me a lot.”

Rewarding productivity

Sefaur Rahman, a researcher and assistant director of agriculture in the district of Malda, predicted a dramatic growth in maize cultivation in West Bengal in the coming years, because farmers are now aware of the crop’s increased productivity, profitability and cost efficiency.

Through the SRFSI project, the International Maize and Wheat Improvement Center (CIMMYT) and the Australian Centre for International Agricultural Research (ACIAR) have reached out to a large number of smallholder farmers, especially marginalized women, to promote conservation agriculture and other sustainable techniques that make farming more profitable. In West Bengal, the project team has worked in partnership with Uttar Banga Krishi Viswavidyalaya agricultural university and the West Bengal Department of Agriculture, among others.

In the 2017-18 crop season, Bibi produced 16,800 kg of maize from her land. She initially invested 20,000 rupees ($280) per acre, which led to a net profit of 150,000 rupees ($2,113) in total.

A quick lesson learned, the right decision at the right time, and a lot of hard work led Bibi to win the Krishi Karman Prize. These awards are given to the best performing states for raising the country’s food grain production. Taking to Twitter, the Chief Minister of West Bengal, Mamata Banerjee, expressed her satisfaction. “I am happy to share that West Bengal has been selected once again for Krishi Karman Award by Govt. of India for the year 2017-18, primarily for maize production,” she said.

As Bibi’s story confirms, embracing conservation agriculture techniques is the way to reap maximum benefits and profits from the farm. In this case, the zero-till cultivation of maize paved a new road towards self-sufficiency and sustainability for the farmers of West Bengal.

‘Demand has skyrocketed’: Mexicans are willing to pay a premium for blue corn

Written by Mary Donovan on December 5, 2019. Posted in In the media.

CIMMYT study finds that women are 33% more likely to pay for blue maize tortillas and men are 19% more likely. A person’s income had no impact on the willingness to pay more for blue maize.

Nurture soil as our food and climate insurance

Written by Jérôme Bossuet on December 5, 2019. Posted in Features.

Kassim Massi and Joyce Makawa have learned how conservation agriculture nurtures the soil of their 2.5-acres farm in Lemu, Malawi, and helps them to better cope with regular dry spells and storm rains. With four children and two grandchildren, their livelihoods depend on rainfed crop farming, in particular maize, the main staple in Malawi, and a few goats and free-range poultry. The International Maize and Wheat Improvement Center (CIMMYT) introduced them to conservation agriculture, along with five other families in their community.

“I have learnt a lot from this experiment. I can see that with crop rotation, mulching and intercropping I get bigger and healthier maize cobs. The right maize spacing, one seed at the time planted in a row, creates a good canopy which preserves the soil moisture in addition to the mulch effect,” Massi explains. “The mulch also helps to limit water runoff when there are heavy rains. I don’t see the streams of mud flowing out of this plot like for my other field where I only planted maize as usual on ridges,” he adds.

Massi and Makawa started small, on a quarter acre, testing maize and maize-pigeon pea intercropping under conservation agriculture. Later they diversified to a maize-groundnut rotation with pigeon pea alleys, while introducing different drought-tolerant maize varieties on their plot. Pigeon pea and groundnut are legume crops that enrich the soil in nitrogen via nodules that host specific bacteria called rhizobia in their root systems. Massi and Makawa also put layers of maize stalks and groundnut haulms on the ground after harvest, creating a mulch that not only enriches the soil in organic matter but retains soil moisture and improves soil structure.

While they got only two bags of 50kg maize grain from their conventionally tilled maize field, they harvested almost three times more maize grain plus three bags of groundnuts, and two and half bags of pigeonpea from the 0.1 hectares grown under conservation agriculture. “This plot has become our food insurance and we plan to expand it.”

Family farmers Kassim Massi and Joyce Makawa in Lemu, Malawi. (Photo: Shiela Chikulo/CIMMYT)

Good for the soil and good for the farmer

“Building healthy soils over the years is one of the great impacts of conservation agriculture,” explains Christian Thierfelder, an agronomist with CIMMYT in Zimbabwe. “With no tillage, legume rotation or intercropping and crop residue management, a beneficial soil pore structure is developed over time. This enables water to infiltrate into the soil where it is available for plant growth in times of drought or during in-season dry spells.”

Under the GIZ-funded Out scaling climate-smart technologies to smallholder farmers in Malawi, Zambia & Zimbabwe initiative, the different ecosystem services that soils bring have been measured against the typical ploughed maize monocropping system. Fifteen year-long experiments show that 48.5mm more water infiltrates per hour under no-till as compared with the conventional method. Soil erosion is reduced by 64% for ripline-seeded maize with legume intercropping. At the Henderson Research station in Zimbabwe where soil erosion loss has been quantified, it means 90 metric tons per hectare of topsoil saved over twelve years.

“Conservation agriculture is good for the soil, and it is good for the farmer. The maize-legume intercropping under conservation agriculture provides very good financial return to labor and investment in most rural communities we worked with,” Thierfelder notes.

Climate mitigation or resilience?

There is growing recognition of the importance of soils in our quest for sustainability.

Soils play for instance an important role in climate regulation. Plants fix carbon dioxide (CO₂) through photosynthesis and when those plants die and decompose, the living organisms of the soil, such as bacteria, fungi or earthworms, transform them into organic matter. That way, soils capture huge quantities of the carbon emissions that fuel climate change. This soil organic carbon is also essential for our food security because it retains water, and soil nutrients, essential for growing crops.

The quantity of carbon soils capture depends on the way farmers grow their crops. Conservation agriculture improves soil biodiversity and carbon sequestration by retaining crop residues as mulch, compared to conventional practices.

“Research shows that practices such as conservation agriculture can restore soil organic carbon at the level of four per thousand when farmers apply all principles of conservation agriculture: no-till, soil cover and crop diversification,” explains Marc Corbeels, agronomist seconded to CIMMYT from Cirad. Increasing soil organic content stocks globally by 0.4% per year is the objective of the “4 per 1000” initiative as a way to mitigate climate change and improve food security. At global level, sequestrating 0.4% more soil organic carbon annually combined with stopping deforestation would counteract the annual rise in atmospheric CO2.

“The overall soil organic carbon sequestration potential of conservation agriculture should however not be overestimated,” Corbeels warns. “Carbon sequestration is complex and context-specific. It depends for instance on the type of soils and the initial soil organic status, and the crop and biomass productivity as enough crop residues should be produced.”

“Now farmers in Malawi, Zambia and Zimbabwe are facing prolonged drought and, in some parts, farming communities got hit by flash floods. With degraded and barren soils in this tropical environment, it is a disaster. In my experience, more than mitigation, improved climate resilience is a bigger benefit of conservation agriculture for the farmers”, Corbeels says.

“Science is important to build up solid evidence of the benefits of a healthy soil and push forward much-needed policy interventions to incentivize soil conservation,” Thierfelder states.

Scaling out conservation agriculture practices is what has driven him over the past decade in southern Africa.

“One big lesson I learnt from my years of research with farmers is that if you treat well your soil, your soil will treat you well. Conservation agriculture adopters like Kassim Massi and his family are more resilient to these successive shocks. We need more farmers like them to achieve greater food security and climate resilience in the region,” he concludes.

December 5, we are celebrating World Soil Day under the theme “Stop Soil Erosion, Save our Future!” As CIMMYT’s research shows, farmers cannot deliver sustainable food security without healthy soils, as the farming land producing our staple crops provide important environmental services as well. CIMMYT calls for soil-smart agriculture and food systems.

Agricultural solutions to tackle humanity’s climate crisis

Written by Mike Listman on December 3, 2019. Posted in Features.

More than 11,000 scientists signed on to a recent report showing that planet Earth is facing a climate emergency and the United Nations warned that the world is on course for a 3.2 degree spike by 2100, even if 2015 Paris Agreement commitments are met.

Agriculture, forestry, and land-use change are implicated in roughly a quarter of global greenhouse gas emissions.

Agriculture also offers opportunities to mitigate climate change and to help farmers — particularly smallholders in developing and emerging economies who have been hardest hit by hot weather and reduced, more erratic rainfall.

Most of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while meeting the rising demand for food and, where possible, reducing emissions.

Family farmer Geofrey Kurgat (center) with his mother Elice Tole (left) and his nephew Ronny Kiprotich in their 1-acre field of Korongo wheat near Belbur, Nukuru, Kenya. (Photo: Peter Lowe/CIMMYT)

Climate-resilient crops and farming practices

53 million people are benefiting from drought-tolerant maize. Drought-tolerant maize varieties developed using conventional breeding provide at least 25% more grain than other varieties in dry conditions in sub-Saharan Africa — this represents as much as 1 ton per hectare more grain on average. These varieties are now grown on nearly 2.5 million hectares, benefiting an estimated 6 million households or 53 million people in the continent. One study shows that drought-tolerant maize can provide farming families in Zimbabwe an extra 9 months of food at no additional cost. The greatest productivity results when these varieties are used with reduced or zero tillage and keeping crop residues on the soil, as was demonstrated in southern Africa during the 2015-16 El Niño drought. Finally, tolerance in maize to high temperatures in combination with drought tolerance has a benefit at least twice that of either trait alone.

Wheat yields rise in difficult environments. Nearly two decades of data from 740 locations in more than 60 countries shows that CIMMYT breeding is pushing up wheat yields by almost 2% each year — that’s some 38 kilograms per hectare more annually over almost 20 years — under dry or otherwise challenging conditions. This is partly through use of drought-tolerant lines and crosses with wild grasses that boost wheat’s resilience. An international consortium is applying cutting-edge science to develop climate-resilient wheat. Three widely-adopted heat and drought-tolerant wheat lines from this work are helping farmers in Pakistan, a wheat powerhouse facing rising temperatures and drier conditions; the most popular was grown on an estimated 40,000 hectares in 2018.

Climate-smart soil and fertilizer management. Rice-wheat rotations are the predominant farming system on more than 13 million hectares in the Indo-Gangetic Plains of South Asia, providing food and livelihoods for hundreds of millions. If farmers in India alone fine-tuned crop fertilizer dosages using available technologies such as cellphones and photosynthesis sensors, each year they could produce nearly 14 million tons more grain, save 1.4 million tons of fertilizer, and cut CO₂-equivalent greenhouse gas emissions by 5.3 million tons. Scientists have been studying and widely promoting such practices, as well as the use of direct seeding without tillage and keeping crop residues on the soil, farming methods that help capture and hold carbon and can save up to a ton of CO₂ emissions per hectare, each crop cycle. Informed by CIMMYT researchers, India state officials seeking to reduce seasonal pollution in New Delhi and other cities have implemented policy measures to curb the burning of rice straw in northern India through widespread use of zero tillage.

Farmers going home for breakfast in Motoko district, Zimbabwe. (Photo: Peter Lowe/CIMMYT)

Measuring climate change impacts and savings

In a landmark study involving CIMMYT wheat physiologists and underlining nutritional impacts of climate change, it was found that increased atmospheric CO₂ reduces wheat grain protein content. Given wheat’s role as a key source of protein in the diets of millions of the poor, the results show the need for breeding and other measures to address this effect.

CIMMYT scientists are devising approaches to gauge organic carbon stocks in soils. The stored carbon improves soil resilience and fertility and reduces its emissions of greenhouse gases. Their research also provides the basis for a new global soil information system and to assess the effectiveness of resource-conserving crop management practices.

CIMMYT scientist Francisco Pinto operates a drone over wheat plots at CIMMYT's experimental station in Ciudad Obregon, Mexico. (Photo: Alfonso Cortés/CIMMYT) — CIMMYT scientist Francisco Pinto operates a drone over wheat plots at CIMMYT’s experimental station in Ciudad Obregon, Mexico. (Photo: Alfonso Cortés/CIMMYT)

Managing pests and diseases

Rising temperatures and shifting precipitation are causing the emergence and spread of deadly new crop diseases and insect pests. Research partners worldwide are helping farmers to gain an upper hand by monitoring and sharing information about pathogen and pest movements, by spreading control measures and fostering timely access to fungicides and pesticides, and by developing maize and wheat varieties that feature genetic resistance to these organisms.

Viruses and moth larvae assail maize. Rapid and coordinated action among public and private institutions across sub-Saharan Africa has averted a food security disaster by containing the spread of maize lethal necrosis, a viral disease which appeared in Kenya in 2011 and quickly moved to maize fields regionwide. Measures have included capacity development with seed companies, extension workers, and farmers the development of new disease-resilient maize hybrids.

The insect known as fall armyworm hit Africa in 2016, quickly ranged across nearly all the continent’s maize lands and is now spreading in Asia. Regional and international consortia are combating the pest with guidance on integrated pest management, organized trainings and videos to support smallholder farmers, and breeding maize varieties that can at least partly resist fall armyworm.

New fungal diseases threaten world wheat harvests. The Ug99 race of wheat stem rust emerged in eastern Africa in the late 1990s and spawned 13 new strains that eventually appeared in 13 countries of Africa and beyond. Adding to wheat’s adversity, a devastating malady from the Americas known as “wheat blast” suddenly appeared in Bangladesh in 2016, causing wheat crop losses as high as 30% on a large area and threatening to move quickly throughout South Asia’s vast wheat lands.

In both cases, quick international responses such as the Borlaug Global Rust Initiative, have been able to monitor and characterize the diseases and, especially, to develop and deploy resistant wheat varieties.

A community volunteer of an agricultural cooperative (left) uses the Plantix smartphone app to help a farmer diagnose pests in his maize field in Bardiya district, Nepal. (Photo: Bandana Pradhan/CIMMYT)

Partners and funders of CIMMYT’s climate research

A global leader in publicly-funded maize and wheat research and related farming systems, CIMMYT is a member of CGIAR and leads the South Asia Regional Program of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS).

CIMMYT receives support for research relating to climate change from national governments, foundations, development banks and other public and private agencies. Top funders include CGIAR Research Programs and Platforms, the Bill & Melinda Gates Foundation, Mexico’s Secretary of Agriculture and Rural Development (SADER), the United States Agency for International Development (USAID), the UK Department for International Development (DFID), the Australian Centre for International Agricultural Research (ACIAR), Cornell University, the German aid agency GIZ, the UK Biotechnology and Biological Sciences Research Council (BBSRC), and CGIAR Trust Fund Contributors to Window 1 &2.

Scaling out climate-smart agriculture in southern Africa

Written by Emma Orchardson on December 3, 2019. Posted in Infographics.

The United Nations Framework Convention on Climate Change estimates that temperatures in Africa are set to rise significantly in coming years, with devastating results for farmers. Some regions could experience two droughts every five years, and see drastic reductions in maize yields over the next three decades.

Research demonstrates that climate-smart agriculture (CSA) is good method of mitigating the effects of climate change, for both farmers and the planet. Associated practices, which increase soil moisture levels and soil biodiversity have been shown to decrease soil erosion by up to 64%. They also have the potential to increase maize yields by 136% and incomes in dry environments by more than twice as much.

However, adoption rates remain low in some of the countries which stand to benefit the most, such as Malawi, Zambia and Zimbabwe, where the adoption of complete conservation agriculture systems is currently at 2.5%.

A new series of infographics describes some of the farming constraints will have to be addressed in order to scale climate-smart agricultural practices successfully in the region, taking into account both benefits and challenges for farmers.

Download the infographics:

Can we scale out Climate-Smart Agriculture? An overview.

Feasibility study of Climate-Smart Agriculture for rural communities in southern Africa: the approach.

Identifying the two best-bet CSA options to test.

A perfect storm: climate change jeopardizes food security in Malawi, Zambia and Zimbabwe.

Benefits and challenges of climate-smart agriculture for farmers in southern Africa.

Gender-sensitive climate-smart agriculture in southern Africa.

There is a strong business case for scaling out CSA in Malawi, Zambia and Zimbabwe.

Kindie Tesfaye Fantaye

Written by Emma Orchardson on December 3, 2019. Posted in Uncategorized.

Kindie Tesfaye is a Senior Scientist based in Ethiopia. He has more than 15 years of experience in executing and managing climate, crop modeling and GIS related projects for agricultural research and development in developing countries.

During his time at CIMMYT, he has developed a system of data acquisition and quality control for climate, crop modeling and geospatial analysis. He has applied systems analysis, cropping systems modeling and geospatial analysis tools for yield gap analysis, targeting of climate smart technologies and climate change studies across different scales. In collaboration with partners, he has also developed a digital agro-climate advisory system that provides decision support to smallholder farmers.

Pramod Aggarwal

Written by Emma Orchardson on December 3, 2019. Posted in Uncategorized.

Pramod Aggarwal leads the South Asia Regional Program for the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS).

He earned his post-doctoral degree at the International Rice Research Institute, Philippines, and holds two doctoral degrees from the University of Indore, India, and from Wageningen University-Netherlands. He was awarded Academy of Sciences for the Developing World’s Ernesto Illy Trieste Science Prize in 2009, and the Indian National Science Academy’s Young Scientist Medal in 1983.

His professional research focuses on crop growth models for tropical environments, impact assessment of climatic variability and climate change on crops, and adaptation strategies and mitigation options, among other topics.