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Theme: Climate adaptation and mitigation

Climate change threatens to reduce global crop production, and poor people in tropical environments will be hit the hardest. More than 90% of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while producing more food, and reduce emissions where possible. Innovations include new maize and wheat varieties that withstand drought, heat and pests; conservation agriculture; farming methods that save water and reduce the need for fertilizer; climate information services; and index-based insurance for farmers whose crops are damaged by bad weather. CIMMYT is an important contributor to the CGIAR Research Program on Climate Change, Agriculture and Food Security.

CIMMYT at the Borlaug Dialogue

Harnessing Change was the theme of the 2023 Borlaug Dialogue, an annual summit of international thought leaders, development specialists, researchers, farmers, and practitioners, designed to promote global food systems transformation and food security, and is organized by the World Food Prize Foundation.

This iteration of the Borlaug Dialogue, held in Des Moines, Iowa, October 24-26, 2023, was the site of the inauguration of a collaboration between CIMMYT and the Gorongosa Restoration Project to improve climate resilience, food security and nutrition in Mozambique’s Gorongosa National Park.

“These kinds of collaborations exemplify what the Borlaug Dialogue is all about,” said CIMMYT Director General Bram Govaerts. “The annual event and the work of the World Food Prize Foundation year-round is dedicated to bringing people and organizations together to work better and smarter. CIMMYT is proud to be a part of it.”

CGIAR Centers based in the Americas host discussion on Latin America’s food security challenges and opportunities

CIMMYT, the International Potato Center (CIP), the Alliance of Bioversity International and the International Center for Tropical Agriculture, and International Food Policy Research Institute (IFPRI) co-organized the side event Maximizing Latin America and the Caribbean’s Contributions to Global Agriculture and Biodiversity Solutions at Dialogue.

Govaerts moderated the panel discussion and the Q&A session that followed with members of the audience.

Panelists, including Elsa Murano, director of the Norman E. Borlaug Institute for International Agriculture & Development, Rob Bertram, chief scientist for the Bureau for Resilience and Food Security at the U.S. Agency for International Development (USAID), and María (pilu) Giraudo, honorary president of Argentina’s No Till Farmers Association, shared views on Latin America’s role in global agriculture from academic, development and farming offer academic insights, international cooperation recommendations and farmer perspectives.

CIMMYT and USAID co-host panel focused on AID-I’s impact at the Borlaug Dialogue

CIMMYT and USAID hosted an event at the Dialogue organized by the World Food Prize Foundation on October 25 focused on the Southern Africa Accelerated Innovation Delivery Initiative (AID-I).

The discussion labelled, Harnessing Innovation to Rapidly Respond to Crises, aimed to present AID-I’s innovative approach to addressing systemic weaknesses in agriculture by accelerating the market-based delivery of improved seeds, fertilizers, and critical information to farmers.

(Left to right) Bram Govaerts, Kevin Kabunda and Dina Esposito. (Photo: CIMMYT)

Dina Esposito, USAID’s Global Food Crisis coordinator and assistant to the Administrator for the Bureau for Resilience, Environment and Food Security, described how AID-I is “turning crisis into opportunity” by improving farmers’ resilience and profitability.

“We joined CIMMYT and went to Zambia, and the partnership was a glimmer in our eyes,” said Esposito, referring to a recent visit to a model farm with AID-I partners.

Reporting progress in Zambia, Malawi and Tanzania, Kevin Kabunda, CIMMYT’S AID-I chief of party in southern Africa, noted that the private sector had produced 13,000 tons of maize in the first year.

“The extended or increased potential for every farmer who uses fall armyworm-tolerant varieties translates to US$100 dollars,” said Kabunda who estimated AID-I reached 1.3 million farmers in its first year generating an aggregated value of at least US$65 million dollars.

In addition, Mtieyedou (Abdou) Konlambigue, AID-I chief of party in the Great Lakes Region, pointed out that the project has given access to new bean varieties and fertilizer recommendations to over 500,000 farmers in Rwanda, Burundi and the Democratic Republic of the Congo.

Farmers take the stage

Two champion farmers, María (pilu) Giraudo and Guillermo Bretón joined CIMMYT’s Director General, Bram Govaerts, and CGIAR Board Chair, Lindiwe Majele Sibanda, during a main stage session of the Borlaug Dialogue organized by the World Food Prize Foundation on Tuesday, October 24.

The event, MasAgro Taking it to the Farmer, reported on progress achieved and milestones reached by one of CIMMYT’s flagship projects, Crops for Mexico (MasAgro), which began 14 years ago and earned Govaerts the 2014 Norman E. Borlaug Award for Field Research and Application endowed by The Rockefeller Foundation.

Giraudo, an Argentinian farmer who co-founded the Rural Women Network and serves as honorary president of Argentina’s no till farmer association Aapersid, said that the best way to acknowledge MasAgro’s work is to seize the opportunity to offer women farmers the possibility of having full access to science and technology.

Bretón, a farmer from Mexico’s state of Tlaxcala, described MasAgro as a disruptive way of understanding agriculture. “Investing in our soils is better than investing in a one-cycle crop,” he said.

CGIAR Board Chair Lindiwe Majele Sibanda was enthusiastic about the project’s trajectory and proud of its evolution into CIMMYT’s ongoing efforts, including adapting MasAgro to southern Africa.

Sibanda expressed her excitement about MasAgro-inspired activities in Africa and praised the diversified seed systems that today include dryland crops sold in smaller seed bags by young entrepreneurs who are taking up businesses in villages without having to go to urban centers.

Govaerts moderated the event and thanked Dina Esposito, and U.S. Special Envoy for Global Food Security, Cary Fowler, for facilitating the establishment of MasAgro programs in southern Africa.

Sieg Snapp receives International Soil Science Award

Sieg Snapp, director of the Sustainable Agrifood Systems (SAS) program at CIMMYT, has been selected as a recipient of the 2023 International Soil Science Award. Bestowed by the Soil Science Society of America (SSSA), the award recognizes outstanding contributions to soil science on the international scene.

The awarding panel looks for lasting contributions to international soil science, including creativity and relevance in the establishment of scientific research, the application of sound principles of international significance. A key factor is evidence of bringing about long-lasting change in practices related to soil science in more than country, as Snapp has done through improved understanding of integrated nutrient management in Malawi and Tanzania. Snapp’s receipt of the prestigious award affirms her lifelong commitment to enhancing the science and practice of agriculture for the betterment of the planet and its people.

Sieglinde Snapp receives the International Soil Science Award. (Photo: ASA, CSSA, SSSA)

Snapp is a trailblazing scientist renowned for pioneering the “mother-baby trial” method, the go-to tool for participatory research which has helped develop farmer-approved technologies in 30 countries. Her groundbreaking approach has significantly advanced participatory research, enriching our understanding of soil health, crop diversity and agroecology, informing extension services and policymakers in Africa and beyond.

Snapp received her award at the ASA-CSSA-SSSA International Annual Meeting in St. Louis, Missouri, where she also delivered the ASA Plenary/E.T. & Vam York Distinguished ASA Lectureship. Her talk, titled “Sustainable Agrifood Systems for a Changing World Requires Action-driven Science,” unveiled CIMMYT’s strategy for advancing the science of SAS in a rapidly changing world. In it, she addressed the pressing issues of climate change, conflict and food insecurity, emphasizing the need for action research, new data analytics and agro-diversity. These, she emphasized, are essential elements to safeguard the resilience and sustainability of our farming systems.

How K-State research feeds the world

Jared Crain, a research assistant professor of plant pathology, collaborates with CIMMYT on wheat genomics. Leading the Feed the Future Innovation Lab for Applied Wheat Genomics at K-State, Crain and his team annually analyze DNA from 19,000 plants.

Read the full story.

 

While you were sleeping: increasing nighttime temperatures and their effects on plant productivity

When one thinks of heat waves, the natural tendency is to consider high daytime temperatures. However, when most people are sleeping, a hidden factor of climate change is taking place: temperatures at night are not dipping as much as observed in the past, which has dramatic effects on many crops, including wheat. In fact, nocturnal temperatures are rising more rapidly globally than daytime temperatures, which is of great concern as research is starting to show the sensitivity of plants to warmer nights.

A group of researchers, from the University of Nottingham, the Sonora Institute of Technology (ITSON) and CIMMYT examined how different wheat lines reacted to the effects of rising nighttime temperatures treatments imposed in the field, for three years at CIMMYT’s Norman E. Borlaug experimental station in Ciudad Obregon, Mexico. Their results, Night-time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses were published in New Phytologist.

Previous studies revealed that wheat yields decline 3-8% for every 1°C increase of the nighttime low temperature. For this research, the team subjected the selected wheat breeds to an increase of 2°C. The varieties were selected based on previous evaluations of their daytime heat tolerance.

Notably, the findings highlighted that genotypes classified as traditionally heat tolerant were sensitive to small increases in nighttime temperature even without daytime temperature stress, implying that adaptation to warm nights is likely under independent genetic control than daytime adaptation.

“These results are exciting as they offer new perspectives on the impact of night temperatures on diurnal photosynthetic performance and wheat yields,” said co-first author Liana Acevedo-Siaca. “Through this work we found that wheat yields decreased, on average, 1.9% for every degree that increased at night. Our hope is that this work can help inform future breeding and research decisions to work towards more resilient agricultural systems, capable of dealing with warmer day and nighttime temperatures.”

Plants at night

While plants do not “sleep” in the way animals do, nighttime for plants has long been thought of as a time of repose compared to daylight hours when photosynthesis is taking place. However, recent findings have revealed that plants are more active than previously thought at night, for example in transpiration, which is the process of plants gathering liquid water from the soil and releasing water vapor through their leaves.

“An interesting result of our research was that we found varieties characterized as heat tolerant, showed some of the greatest declines in yield in response to warmer nights,” said co-first author Lorna McAusland, Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham. “These are the varieties wheat farmers are being recommended for increasing daytime temperature, and so there is a worry that advantages gained during the day are being lost at night.”

“There is likely a goldmine of opportunities related to genetically improving nighttime processes in crops, as very little research has been conducted in that space. Useful genetic variation can be expected, since ‘night’ traits have never been considered or needed before now,” said co-author Matthew Reynolds, who leads the CIMMYT’s Wheat Physiology Lab that collaborates globally with experts via HeDWIC (https://hedwic.org/) and uses physiological pre-breeding as a conduit for cutting edge technologies to impact mainstream breeding.

Millers in Nigeria laud the release to farmers of co-developed, CIMMYT-derived wheat varieties

Nigerian wheat scientists and millers recently recognized and thanked CIMMYT for its contributions to four new wheat varieties released to farmers, citing the varieties’ exceptional performance in field trials and farmers’ fields across national wheat-growing regions.

“The release of these four wheat varieties, uniquely tailored to suit our local conditions, has marked a significant milestone in enhancing food security and farmer livelihoods,” said Ahamed T. Abdullahi, agronomist for wheat value chains at the Flour Milling Association of Nigeria (FMAN), in a recent message to CIMMYT’s Global Wheat program. “The improved characteristics, such as higher yield potential, enhanced disease resistance, and adaptability to local climatic conditions, have significantly boosted wheat productivity. Moreover, the quality profiles of these varieties, as expressed in Nigeria, comply fully with the standards required by the local industry.”

Two of the varieties are bread wheat and yield up to 7 tons of grain per hectare, according to a recent Nigeria Tribune article. The other two are durum wheat, a species grown to make pasta and foods such as couscous and tabbouleh. One of those, given the name LACRIWHIT 14D in Nigeria, was from a CIMMYT wheat line selected for its novel genetic resistance to leaf rust and high-yield potential under irrigated conditions. It was also released in Mexico under the name CIRNO C2008 and is the country’s number-one durum wheat variety, according to Karim Ammar, a wheat breeder at CIMMYT.

Four new bread and durum wheat varieties based on CIMMYT breeding lines are well adapted to local conditions and offer excellent yields and grain quality. (Photo: FMAN)

“Aside from its high yield potential, it has considerable grain size and an aggressive grain fill that is expressed even under extreme heat,” explained Ammar. “These characteristics have certainly helped its identification as outstanding for Nigerian conditions.”

Writing on behalf of FMAN and the Lake Chad Research Institute (LCRI) of Nigeria’s Federal Ministry of Agriculture and Rural Development, Abdullahi said, “We deeply appreciate the expertise and support provided by CIMMYT throughout the development and release process. Your team’s technical guidance on the access to germplasm has played a crucial role in equipping our farmers and extension agents with the necessary skills and resources for successful wheat cultivation.”

Nigeria has a fast-growing population which, coupled with increasing per capita demand for wheat, has made increasing wheat production a national priority, according to Kevin Pixley, director of the Dryland Crops and Global Wheat programs at CIMMYT.

“Until recently, Nigeria produced only 2% of the wheat it consumes, but potential exists to double the current average yield and expand wheat production by perhaps 10-times its current area,” said Pixley. “New wheat varieties will be essential and must be grown using sustainable production practices that improve farmers’ livelihoods while safeguarding long-term food security and natural resources.”

Abdullahi said the release of the varieties demonstrated the power of collaborative research and highlighted the potential for future collaborations. “We look forward to continued collaborations and success in the pursuit of sustainable food systems.”

Sequestering carbon in soils: what agriculture can do

In Zimbabwe, CIMMYT is studying the long-term effectiveness of integrated farming practices, including tillage, no-tillage, mulching with maize residues, and cowpea rotation. This experiment in a distinct agricultural context provides insights into sustainable strategies and soil carbon stocks.

Read the full story.

Ten years later: CIMMYT facilities in East Africa continue to make a difference

CIMMYT and partners in Kenya recently marked the 10th anniversary of two major facilities that have been crucial for maize breeding in sub-Saharan Africa. The Maize Doubled-Haploid (DH) facility and the Maize Lethal Necrosis (MLN) screening facility at the Kenya Agriculture and Livestock Research Organization (KALRO) centers in Naivasha and Kiboko, respectively, have made immense contributions to the rapid development of higher-yielding, climate-resilient and disease-resistant maize varieties for smallholder farmers across the continent.

An aerial photo of the Naivasha Research Center. (Photo: CIMMYT)

“These two facilities have been instrumental in furthering KALRO’s mission to utilize technology in the service of Kenya’s smallholder farmers,” said KALRO Director General/CEO, Eliud Kireger. “They also exhibit the spirit of cooperation and collaboration that is necessary for us to meet all the challenges to our food systems.”

“Deploying a higher yielding maize variety may not be impactful in eastern Africa if that variety does not have resistance to a devastating disease like MLN,” said CIMMYT’s Director General Bram Govaerts. “These two facilities demonstrate the holistic methods which are key to working towards a more productive, inclusive and resilient agrifood system.”

Maize DH facility

Hybrid maize varieties have much higher yields than open-pollinated varieties and are key to unlocking the agricultural potential of maize producing countries. The doubled haploid process is an innovative technology producing within a year genetically true-to-type maize lines that serve as building blocks for improved maize hybrids.

Unlike conventional breeding, which takes at least 7 to 8 generations or crop seasons to develop parental lines, DH lines are generated within two seasons, saving significant time, labor and other resources. DH maize lines are highly uniform, genetically stable, and are more amenable to the application of modern molecular tools, making them perfect resources for breeding elite maize hybrids.

Workers in the Kiboko Double Haploid facility. (Photo: CIMMYT)

The aim of CIMMYT’s maize DH facility is to empower the breeding programs throughout the low-and middle-income countries in Africa by offering a competitive, accessible, not-for-profit DH production service that will accelerate their rate of genetic gain and fast-track development of improved maize varieties for farming communities.

Since 2017, the DH facility has delivered 280,000 DH lines from 1,840 populations of which 20% were delivered to public and private sector partners. CIMMYT maize breeding programs and partner organizations have embraced the use of DH technology, with many of the newest maize hybrids released in Africa being derived from DH lines. The facility has also served as a training ground so far for over 60 scientists and hundreds of undergraduate students in modern breeding technologies.

“Before 2013, DH technology was mainly employed by private, multinational corporations in North America, Europe, Asia and Latin America,” said CIMMYT’s DH Facility Manager, Vijay Chaikam. “But the DH facility operated by CIMMYT at the KALRO Kiboko research station is specifically targeted at strengthening the maize breeding programs by the public sector institutions as well as small-and medium-size enterprise seed companies in Africa.”

The maize DH facility at Kiboko, Kenya, was established with funding support from the Bill & Melinda Gates Foundation and inaugurated in September 2013. The facility includes an administrative building, seed quality laboratory, training resources, artificial seed dyer, a cold-storage seed room, a chromosome doubling laboratory, greenhouse and a state-of-the-art irrigation system to support year-round DH production in the 17-hectare nursery.

MLN screening facility

MLN is a devastating viral disease that can decimate farmers’ fields, causing premature plant death and unfilled, poorly formed maize ears, and can lead to up to 100 percent yield loss in farmers’ fields. Though known in other parts of the world for decades, the disease was first identified in eastern Africa in 2011. By 2015, MLN had rapidly spread across eastern Africa, including Kenya, Uganda, Tanzania, South Sudan, Rwanda, Democratic Republic of Congo and Ethiopia. CIMMYT scientists quickly discovered that almost all the commercial maize cultivars in eastern Africa were highly susceptible to the disease.

Against this backdrop, CIMMYT and KALRO recognized the urgent need for establishing a screening facility to provide MLN phenotyping service and effectively manage the risk of MLN on maize production through screening of germplasm and identifying MLN-resistant sources. The facility was built with funding support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture, and inaugurated in September 2013.

Resistant and susceptible line at the Maize Lethal Necrosis facility. (Photo: CIMMYT)

“The MLN screening facility is a key regional resource in breeding for resistance to a devastating viral disease. The facility is indeed one of the key factors behind successful management of MLN and helping stem the tide of losses in eastern Africa,” said Director of the Global Maize Program at CIMMYT and One CGIAR Plant Health Initiative, B.M. Prasanna. “Fighting diseases like MLN, which do not respect political boundaries, requires strong regional and local collaboration. The successes achieved through the MLN Screening facility in the past 10 years embody that spirit of collaboration.” Indeed, farmers in the region now have access to over twenty genetically diverse, MLN-tolerant/resistant maize hybrids released in eastern and southern Africa.

The facility is the largest dedicated MLN screening facility in Africa and has evaluated over 230,000 accessions (over 330,000 rows of maize) from CIMMYT and partners, including over 15 national research programs, national and multinational seed companies. The facility covers 20 hectares, of which 17 hectares are used for field screening of germplasm. Dedicated laboratories and screen houses cover the remaining 3 hectares.

“MLN phenotyping service is conducted under stringent quarantine standards and the high-quality data is shared with all the CGIAR and public and private partners. The MLN screening service has helped breeding programs across the continent, aided in undertaking epidemiological research activities, and supported capacity building of students from diverse institutions, and regional stakeholders regarding MLN diagnosis and best management practices,” said CIMMYT’s Maize Pathologist in Africa, L.M. Suresh.

“The output of MLN resistant lines and hybrids has been remarkable,” said Director of Phytosanitary and Biosecurity at the Kenya Plant Health Inspectorate Service (KEPHIS), Isaac Macharia. “And the facility has strictly adhered to quarantine regulations.”

In Uganda, the MLN facility was crucial in the “release of the first-generation MLN tolerant hybrids and dissemination of MLN knowledge products that minimized the economic impact of MLN,” said the Director of Research of the National Crops Resources Research Institute, Godfrey Asea.

Peter Mbogo, maize breeder with Seed Co Group, said, “This is the only quarantine facility in the world where you can screen against MLN under artificial inoculation. It has been an excellent return on investment.”

LIPS-Zimbabwe empowers farmers through innovative intercropping trials

Since 2021, CIMMYT, in partnership with the International Livestock Research Institute (ILRI), the French Agricultural Research Centre for International Development (CIRAD), and the University of Zimbabwe’s Department of Veterinary, has been working in rural communities of Zimbabwe, as part of the Livestock Production Systems in Zimbabwe (LIPS-Zim) project. The activity is led by Zimbabwe’s Department of Research and Specialist Services and is at the forefront of introducing new agricultural innovations to local farmers.

One of their most impactful initiatives has been the intercropping trials involving maize and various legumes including jack bean, mucuna, lablab, and pigeon pea. This groundbreaking approach has not only transformed the lives of farmers but has also had a positive impact on the overall health of livestock.

Various leguminous fodder crops have been promoted widely as sources of high-quality protein feed in mixed crop-livestock systems of Zimbabwe. However, to diversify and increase the options for the drier regions, the LIPS-Zim project is testing new leguminous crops such as jack bean and pigeon pea, which are well-adapted to dry conditions.

Intercropping trials with jack bean and maize (Photo: CIMMYT)

Netsai Musekiwa, a farmer in the town of Mutoko, has been part of the LIPS-Zim project for the past two seasons, and is currently conducting intercrop trials with jack bean. “Since I started intercropping maize with jack bean, I have been amazed by the results and will continue on this path. The jack bean plants have shown strong tolerance to prolonged dry spells and heat stress,” she said. “Next season, I plan to extend my plot to harvest more jack bean.” These words of encouragement on intercropping maize with jack bean have also been largely echoed by many other farmers in Mutoko and Buhera during the feedback meetings held in October 2023.

What is intercropping and how beneficial is it to farmers?

Intercropping is an agricultural practice of growing two or more crops together on the same field simultaneously to maximize land use and enhance productivity. As different crops have different growth patterns and nutrient requirements, intercropping can help optimize resource utilization and boost overall crop output.

In addition, intercropping reduces the risk of climate induced crop failure as well as minimizing pest damage, enhances soil fertility by diversifying the root system, and can provide additional income streams to farmers.

The science behind jack bean and pigeon pea

Jack bean (canavalia ensiformis) and pigeon pea (cajanus cajan) are leguminous crops valued for their nitrogen-fixing abilities which aides in improving soil fertility. Both jack bean and pigeon pea have deep root systems, making them ideal candidates for the dry semi-arid conditions in Zimbabwe.

Pigeon pea is known for its drought-tolerance and produces edible seeds used in various culinary dishes and is a source of both food and feed. Jack bean is used as a forage crop for livestock, providing nutritious feed.

“Jack bean seeds contain a toxic compound called canavanine, which can be harmful when consumed in large quantities or not properly processed. To make jack beans safe for consumption, it must be boiled, soaked, or fermented,” said Isaiah Nyagumbo, cropping systems agronomist at CIMMYT. “We have introduced many farmers to the best practices for handling jack beans and have opened up new possibilities for its utilization in sustainable farming practices.”

While some farmers were intercropping with jack bean, others explored pigeon pea as an alternative. “I liked the intercropping of maize and pigeon pea on my plot. I am assured of getting nutritious food both for my family and livestock. After harvesting, I usually take the branches, then put them in the shade and dry them to retain the nutritional value. I occasionally give some to my goats during the dry season when feed from natural pastures is scarce, and my goat herd has risen to 12 goats,” said Fungai Kativu, a farmer in Mutoko.

Building capacity of local farmers

To narrow the knowledge gap and highlight the potential of such feed options, LIPS-Zim has also been spearheading the establishment of community level learning centers. These centers are a knowledge hub to local farmers, providing practical knowledge, facilitating the sharing of different perspectives while nurturing working as groups with a common vision. This “farmer learns by seeing” approach has been a success in the community.

Through this initiative, farmers have not only witnessed increased productivity but have also gained the necessary skills and knowledge to adapt to the changing agricultural landscape. “Intercropping leguminous crops with maize has shown great potential in improving food security and livestock feed production in Zimbabwe’s farming communities, especially in areas prone to heat and drought,” said Nyagumbo.

CIMMYT’s Hub Model – a learning field in Mexico for the Indian Scientists

CIMMYT’s partnership with the Government of India, which spans more than five decades, is one of the longest and most productive in the world.

In October, a group of about 18 scientists from Bihar Agricultural University (BAU), Indian Council for Agricultural Research (ICAR), and Dr. Rajendra Prasad Central Agricultural University (RPCAU) visited CIMMYT headquarters in Mexico to participate in the course on “Innovation in Agri-food Systems through the Hub Model”.

Read the full story.

Resilience Building through agroecological intensification in Zimbabwe (RAIZ)

Zimbabwe’s agricultural sector is predominantly subsistence-oriented, with maize as the main staple crop and limited use of external inputs. To promote sustainable and climate-smart agriculture, Zimbabwe has developed a 10-year framework (2018-2028) that emphasizes the adoption of climate-smart agriculture (CSA). However, the adoption of CSA practices remains limited in the country. Agroecological practices (AE) and the systemic perspective embedded in agroecological approaches hold great potential to address climate change and enhance agricultural sustainable intensification in Zimbabwe. RAIZ was conceived as the research component of the “Team Europe Initiative” (TEI) on “Climate-Smart Agriculture for Resilience Building”, formulated by the European Union (EU) delegation in Zimbabwe together with its member states.

Led by the French Agricultural Research Centre for International Development (CIRAD), in partnership with CIMMYT and the University of Zimbabwe, with funding from the European Union, RAIZ operates along a gradient of declining rainfall from Murewa in Natural Region II to Mutoko in Natural Region IV. Both districts are in the Mashonaland East province. Under RAIZ, CIMMYT leads Work Package 3 which involves ‘developing the capacity of extension and advisory services on agroecological approaches’ is actively involved in research and development activities, including the creation of training materials and the establishment of on-farm trials. In efforts to address challenges associated with low soil fertility on Zimbabwe’s granitic sandy soils. CIMMYT scientists working on RAIZ are testing the contribution of organic fertilizers and conservation agriculture in building up soil organic carbon and bringing back soil life to these mostly dead soils. These efforts aim to support farmers in adopting sustainable and climate-smart agricultural practices, ultimately contributing to the long-term resilience and prosperity of Zimbabwe’s agricultural sector.

Key objectives 

The overall objective is to support government in the development and implementation of scientifically tested agroecological approaches which will enhance agricultural production and resilience to climate change in Zimbabwe.

In addition, the project focuses on protecting the environment and reducing greenhouse gas (GHG) emissions. It will provide scientific evidence and experience for the design of climate-smart agriculture (CSA) at the plot, farm, and landscape levels, contextualized for mixed crop–livestock farms under sub-humid to semi-arid environments.

Farmers trained in irrigation plot layout

As the effects of climate change intensify, rain dependent crop production is becoming more challenging for smallholder farmers in Malawi, Tanzania and Zambia. Farmers often experience either too little or too much rain to effectively grow their crops, which means growing crops under irrigation is becoming key to building resilience to climate shocks. However, smallholder farmers often lack the access to equipment and skills to implement low-cost irrigation technologies.

The Accelerated Innovation Delivery Initiative (AID-I) implemented by the International Center for Maize and Wheat Improvement (CIMMYT) with funding from the United States Agency for International Development (USAID) has partnered with Total LandCare (TLC) Malawi and Zambia to promote Sustainable Intensification practices in eastern and central Malawi. TLC conducted a training session on using treadle pumps for irrigation plot layout in Mumbi Village, Petauke District, Zambia.

Farmers setting up an irrigation plot as a live demonstration. (Photo : TLC)

Letting gravity do the work

The irrigation system operates on the principle of pumping water manually from a low point to a high point from which the water then flows by gravity through a system of channels to irrigate crops.

Properly managed, treadle pump irrigation can improve household food security, income, nutrition, and health sustainably without detrimental effects to the environment.

The training educated 12 farmers in establishing an irrigation layout using gravity-fed basins, with water pumped from a stream downhill using a treadle pump. Participants learned how to erect channels that directed water into basins.

During practical irrigation training in Muya village of Mondolo camp, Petauke district, one of the farmers, Magret Tembo said, “This method of irrigation will negate the burden associated with use of watering cans, a practice which has been giving us backaches. Through this technology, we will experience increased production through better water management and increased area coverage.”

Following the setup demonstration, participants received practical guidance on various aspects of irrigation and crop management, covering such topics as planting techniques and effective fertilizer use, and application of pesticides and fungicides.

Inexpensive and durable

“Treadle pump irrigation offers tremendous opportunities to dramatically increase agricultural production while enriching the livelihoods of many resource-poor farmers,” said Zwide Jere, Co-founder/Managing Director of TLC.

Treadle pumps are inexpensive, so individuals can afford to purchase one and they are durable and easy to maintain, so one pump will work for years for individual households.

“The pumps are also designed to work in many environments,” said Paul Malambo, Country Manager for TLC Zambia. “So, over the years, TLC has been able to distribute the pumps in Malawi, Mozambique, Tanzania and Zambia.”


A farmer demonstrating how to use the pump (top left and right) in Kasenengwa, Zambia (Photo: TLC)

“Providing access to technical knowledge and support for under-utilized land, water and labor resources is an important part of the AID-I project, said Kevin Kabunda, CIMMYT lead for the AID-I. “As is collaboration with local partners like TLC who facilitate the dissemination of expertise.”

TLC is a registered non-governmental organization based in Malawi and active in Zambia. Its mission is to empower self-reliance and prosperity for rural households in the Southern Africa region.

In Ethiopia, workshop brings together stakeholders on climate risk analysis outputs

CIMMYT and the Global Center on Adaptation, along with the Ethiopian Ministry of Agriculture’s Food Systems Resilience Program (FSRP), presented the results of their joint research on climate risks during a two-day workshop held in October in Addis Ababa.

Participants of the workshop in Addis Ababa (Photo: CIMMYT).

For over a year and a half, agricultural experts, academics and scientists worked together under the project Digital Climate Advisory Services for Priority Agricultural Value Chains in Ethiopia, which aimed to analyze the risks posed by climate change on five value chains – wheat, maize, coffee, soybean and livestock – and to offer practical adaptation options. CIMMYT conducted the studies in collaboration with the Ministry of Agriculture and with the sponsorship of GCA. The workshop was attended by experts from the Ministry of Agriculture, the Ethiopian Institute of Agricultural Research, the Ethiopian Metrology Agency, the Ethiopian Agricultural Transformation Institute, the Food and Agriculture Organization (FAO), the Green Agro Solutions, among other organizations.

From research outcomes to practical solutions

As a prelude to the two-day discussion, CIMMYT senior scientist, Kindie Tesfaye, expressed his hopes that the research findings will be translated into practical solutions in the field. In turn, GCA Food Security senior program officer Mercy Nyambura invited the guests to share their insights, knowledge and expertise on how the joint research outputs could be put to use.

Highlighting that climate variability and climate extreme events are the main two factors undermining food security in Ethiopia, Keberu Belayneh, FSRP’s head at the Ministry of Agriculture, underlined the need for multi-partnerships to respond and adapt to climate change. He farther shared his hope that the program will contribute to the government’s ongoing efforts to ensure food security in the country.

Offering the perspective of a private sector actor, Green Agro Solutions’ executive director Abrhame Endrias hailed the partnership between his company and CIMMYT in five districts where the company deployed its digital platform LERSHA – “for agriculture” in Amharic. LERSHA provides farmers with vital weather forecasts, as well as other services such as farm inputs, mechanization services, and agro-climate advice. In addition, development agents are bridging the literacy gap between the farmers and the digital services, added Abrhame Endrias. In the five districts where CIMMYT and Green Agro Solutions partnered, LERSHA ‘s adoption rates increased, Abrhame Endrias noted.

Vibrant discussions

The results on the five value chains were presented in five different sessions. The first day of the workshop, Debre Markos University’s Dereje Ademe communicated the findings of the studies on the maize and soybean value chains, while  Abate Mekuriaw, associate professor at the Addis Ababa University, introduced the results on the wheat value chain. They were followed on the second day by  Adama Ndour and Mekdes Woldegiorgis, post-doctoral researchers at CIMMYT-Ethiopia, who discussed with the audience their findings on the current and future climate risks for the coffee and cattle value chains.

Echoing Kindie Tesfaye and Mercy Nyambura’s call, the conversations mainly focused on the potential implementation of the research outcomes, with multiple participants voicing their wishes to see the outputs cascading down to district levels.

Keberu Abayneh, the head of the FSRP in the Ministry of Agriculture, gave a closing remark at the end of the workshop thanking CIMMYT, the technical team that carried out the studies, the Ministry of Agriculture and all stakeholders who took part in it.

Following this, the first Regional Climate Risk Analysis Output Communication Workshop was held in Adama, Ethiopia, from November 13-14, 2023.

As highlighted in the first workshop, the research findings needed to be cascaded down to the regional and district level in order to be implemented successfully. To this end, the second workshop brought together the main representatives from regional agricultural offices in the 11 regional states, who engaged in discussions around the research findings, recommendations, and implementation methods. Researchers, agricultural experts, and representatives from the Ministry of Agriculture, Green Agro Solution, CIMMYT and FSRP also took part in the discussions.

Participants of the workshop in Adama (Photo: CIMMYT).

This workshop, held with the aim of engaging participants from 11 regional states in active discussions and gathering feedbacks, is believed to lay the groundwork for cascading down the research results for implementation.

When representatives from regional states presented on their respective areas, they found more common points than differences. Climate change risk on each of the five value chains is felt across Ethiopia due to extremes and variances in rainfall and temperatures, and many regions are shifting cultivating seasons, forwarded by up to three months because of late-onset of rainfall. These incidents are forcing farmers to change conventional cultivation patterns, with those who stick to the conventional schedule at risk of losing their yields. Some farmers have even changed the types of crops they grow as a result.

Participants noted that the recommended adaptation plans are commendable and implementable in their respective areas, with the proper guidance and resources. In order to ensure tangible impact, they asked for the research documents on the priority value chains to be communicated to a wider range of stakeholders in each regional state.

Creating awareness on the climate risk and the adaptation plans, building capacity to ensure the implementation, piloting and then scaling up implementation across the regional states with consistent monitoring and evaluation can bring effective results, stakeholders agreed.