As staple foods, maize and wheat provide vital nutrients and health benefits, making up close to two-thirds of the world’s food energy intake, and contributing 55 to 70 percent of the total calories in the diets of people living in developing countries, according to the U.N. Food and Agriculture Organization. CIMMYT scientists tackle food insecurity through improved nutrient-rich, high-yielding varieties and sustainable agronomic practices, ensuring that those who most depend on agriculture have enough to make a living and feed their families. The U.N. projects that the global population will increase to more than 9 billion people by 2050, which means that the successes and failures of wheat and maize farmers will continue to have a crucial impact on food security. Findings by the Intergovernmental Panel on Climate Change, which show heat waves could occur more often and mean global surface temperatures could rise by up to 5 degrees Celsius throughout the century, indicate that increasing yield alone will be insufficient to meet future demand for food.
Achieving widespread food and nutritional security for the world’s poorest people is more complex than simply boosting production. Biofortification of maize and wheat helps increase the vitamins and minerals in these key crops. CIMMYT helps families grow and eat provitamin A enriched maize, zinc-enhanced maize and wheat varieties, and quality protein maize. CIMMYT also works on improving food health and safety, by reducing mycotoxin levels in the global food chain. Mycotoxins are produced by fungi that colonize in food crops, and cause health problems or even death in humans or animals. Worldwide, CIMMYT helps train food processors to reduce fungal contamination in maize, and promotes affordable technologies and training to detect mycotoxins and reduce exposure.
CIMMYT’s representative in Ethiopia, Bekele Abeyo, gives an interview for Ethiopian media. (Photo: Jérôme Bossuet/CIMMYT)
Most African countries have good potential for boosting wheat production if they are supported with technology, innovation and research, said Bekele Abeyo, a senior scientist with the International Maize and Wheat Improvement Center (CIMMYT).
Abeyo, who is based in Ethiopia, which is one of the top wheat-producing countries in Africa, was speaking to BBC Newsday from the International Wheat Congress in the city of Saskatoon in Canada’s western wheat growing province of Saskatchewan.
In Ethiopia, a third of local demand is satisfied by imports, Abeyo said, adding that to reduce import bills, the government is trying to expand wheat production and irrigation in the lowlands where there is high potential for wheat production.
Climate change in Ethiopia and across sub-Saharan Africa is affecting yields, so scientists are working on producing drought-tolerant varieties of wheat. They are also producing biofortified varieties of wheat to help meet nutritional demand for zinc and iron.
More than 800 delegates, including researchers from the CGIAR Research Program on Wheat, CIMMYT, the International Center for Agricultural Research in the Dry Areas (ICARDA), the International Wheat Yield Partnership (IWYP), Cornell University’s Delivering Genetic Gain in Wheat project (DGGW), the University of Saskatchewan and many other organizations are discussing the latest research on wheat germplasm.
The CGIAR Research Program on Wheat (WHEAT), led by the International Maize and Wheat Improvement Center (CIMMYT), is a founding member of the G20 Wheat Initiative, a co-host of the conference.
Wheat provides 20% of all human calories consumed worldwide. In the Global South, it is the main source of protein and a critical source of life for 2.5 billion people who live on less than $2 a day. Wheat is central to conversations about the rural environment, agricultural biodiversity and global food security.
CIMMYT scientist Velu Govindan (right) is interviewed by Michael Condon of ABC Rural at the International Wheat Conference in Sydney, Australia, 2015. (Photo: Julie Mollins/CIMMYT)
In the Green Revolution era, the focus for wheat breeders was on boosting yields to feed more people, but today the challenge is not only to increase production on smaller plots of land, but also to improve nutritional quality, said CIMMYT wheat breeder Velu Govindan, during an interview on BBC Newsday.
At the opening session of the International Wheat Congress 2019 in Saskatoon, the director general of the International Maize and Wheat Improvement Center (CIMMYT), Martin Kropff, told a gathering of 900 wheat scientists that, with CIMMYT support, Bangladesh developed blast resistant wheat in the quickest possible time. Read more here.
Soil scientist David Guerena, who works for the Nepal Seed and Fertiliser Project run by CIMMYT, advocates for zinc-enriched fertilizers in Nepal. Read more here.
Tabitha Kamau, 29, is scrutinizing a maize demonstration plot on which 12 different varieties were planted in November 2018. “What I am looking for is a maize variety that produces a lot, even when there is scarce rainfall,” says the single mother of three, who lives in Katheini, in Kenya’s Machakos County, on a quarter of an acre of land.
Together with 350 other smallholder farmers from Katheini and neighboring villages, Kamau is assessing the maize crops and ranking them based on her preferred traits.
Like her peers when asked what makes a good maize variety, she gives high scores to drought-tolerant varieties and those that can yield large and nicely filled cobs despite the dry spell that has affected the area over the last two months.
For five years, Kamau has been planting KDV4, a drought-tolerant open pollinated variety on the family land and another piece of leased plot. This early variety matures in 100 to 110 days and is adapted to dry mid-altitude conditions.
Tabitha Kamau examines drought-tolerant KDV4 maize in her plot in the village of Kavilinguni, Machakos County, Kenya. (Photo: Joshua Masinde/CIMMYT)
KDV4 was released by the Kenya Agricultural & Livestock Research Organization (KALRO) using the International Maize and Wheat Improvement Center (CIMMYT)’s germplasm. It is currently marketed by Dryland Seed Limited and Freshco Seeds, targeting farmers in the water-stressed counties of Kitui, Machakos and Makueni, in the lower eastern regions of Kenya.
The early maturing of varieties like KDV4 presents a good opportunity for its adopters, says Kamau. “If I am able to harvest in three and a half months or less, compared to four months or more for other varieties, I can sell some grain to neighbors still awaiting their harvest who want to feed their families.”
“I heard of new varieties that can germinate well and produce lots of leaves,” explains Catherine Musembi. This farmer from Kivaani looks for maize that performs well even under heat and drought. She likes maize plants with high biomass, as the foliage is used to feed the family’s three cows and two goats.
An enumerator (left) collects a farmer’s details and socioeconomic data before she participates in the evaluation of maize varieties. (Photo: Joshua Masinde/CIMMYT)
Farmers’ picks
The International Maize and Wheat Improvement Center (CIMMYT) has been undertaking participatory maize variety evaluations since 2016 in Kenya, Rwanda, Tanzania and Uganda. Every year, during the main maize growing season, researchers plant on-farm trials that can be evaluated by farmers.
Kamau and Musembi attended a selection trial in Machakos County, facilitated by a team from KALRO on February 18-19, 2019. This exercise was part of the 2018 mid-season evaluations, which were followed up by end-season assessments a month later.
Participatory farmer evaluations are used to give crucial feedback to CIMMYT’s maize breeding work. First, farmers get an opportunity to state what traits are important for them and rank them according to their importance. Then, participants evaluate varieties planted in the trial and give a score on individual trait and the overall performance for each variety planted. And they conclude the exercise by rating the best three plots.
In the drier eastern part of Kenya, farmers might be more interested in traits such as drought tolerance, early maturity and disease resistance. In central Kenya, where dairy farming is commonly practiced, a variety with more biomass could be preferred.
“Our work is to tease out the information regarding which traits contribute to a good score in the overall score,” explains Bernard Munyua, a socioeconomics research assistant at CIMMYT. Statistical analysis of the farmers’ score cards will reveal if the initial rating of criteria plays a strong role in the final overall appreciation of a variety. For instance, farmers may give high importance to height or biomass, yet it may not play a role in their ranking of best varieties.
“Such data is important for maize breeders to support future variety improvement work,” Munyua notes. “Moreover, by disaggregating the farmers opinions by region and socioeconomic attributes such as gender, education and income, we can define the priority traits by region or farmers’ socioeconomic profiles. It helps better target maize breeding work according to the needs on the ground and gives useful knowledge to seed companies for their seed marketing strategy,” he adds.
For instance, in the drier eastern part of Kenya, farmers might be more interested in traits such as drought tolerance, early maturity and disease resistance. In central Kenya, where dairy farming is commonly practiced, a variety with more biomass could be preferred. In western Kenya, they could be more interested in grain yields and cob characteristics to improve their sales after harvest.
Agnes Nthambi (left) and other farmers evaluate maize varieties developed through CIMMYT’s Stress Tolerant Maize for Africa (STMA) project. (Photo: Joshua Masinde/CIMMYT)
Agnes Nthambi, the farmer who hosted the demonstration plot, is very positive about her participation, as she learned about some of the ideal agronomic practices as well as the performance of new varieties. “On this trial, I learned that spacing was about two times shorter than we are generally used to. Even with the more constricted spacing, the maize has performed much better than what we are used to seeing,” she says. She also learned that fertilizer is applied at the time of planting. In her case, she normally applies fertilizer much later after germination has already occurred.
Nthambi says her family cannot afford losing both the fertilizer and the seed in case the rains fail. This time, she expects a good harvest from the one-acre farm, to supplement her family’s income.
SASKATOON, Canada (CIMMYT) — Amid global efforts to intensify the nutritional value and scale of wheat production, scientists from all major wheat growing regions in the world will gather from July 21 to 26, 2019 at the International Wheat Congress in Saskatoon, the city at the heart of Canada’s western wheat growing province, Saskatchewan. The CGIAR Research Program on Wheat (WHEAT), led by the International Maize and Wheat Improvement Center (CIMMYT), is a founding member of the G20 Wheat Initiative, a co-host of the conference.
Wheat provides 20% of all human calories consumed worldwide. In the Global South, it is the main source of protein and a critical source of life for 2.5 billion people who live on less than $2 (C$2.60) a day.
In spite of its key role in combating hunger and malnutrition, the major staple grain faces threats from climate change, variable weather, disease, predators and many other challenges. Wheat’s vital contribution to the human diet and farmer livelihoods makes it central to conversations about the rural environment, agricultural biodiversity and global food security.
More than 800 delegates, including researchers from the CGIAR Research Program on Wheat, CIMMYT, the International Center for Agricultural Research in the Dry Areas (ICARDA), the International Wheat Yield Partnership (IWYP), Cornell University’s Delivering Genetic Gain in Wheat project (DGGW), the University of Saskatchewan and many other organizations worldwide will discuss the latest research on wheat germplasm.
“We must solve a complex puzzle,” said Martin Kropff, CIMMYT’s director general. “Wheat must feed more people while growing sustainably on less land. Wheat demand is predicted to increase 60% in the next three decades, while climate change is putting an unprecedented strain on production.”
“The scientific community is tackling this challenge head-on, through global collaboration, germplasm exchange and innovative approaches. Researchers are looking at wheat’s temperature response mechanisms and using remote sensing, genomics, bio-informatics and other technologies to make wheat more tolerant to heat and drought,” Kropff said.
The congress is the first major gathering of the wheat community since the 2015 International Wheat Conference in Sydney, Australia.
CGIAR and CIMMYT scientists will share the latest findings on:
State-of-the-art approaches for measuring traits to speed breeding for heat and drought tolerance
Breeding durum (pasta) wheat for traits for use in bread products
New sources of diversity — including ancient wheat relatives — to create aphid-resistant wheat and other improved varieties
DNA fingerprinting to help national partners identify gaps in improved variety adoption
For more details on schedule and scientists’ presentations, click here.
Research shows that more than 60% of wheat varietal releases since 1994 were CGIAR-related.
Low- and middle-income countries are the primary focus and biggest beneficiaries of CGIAR wheat research, but high-income countries reap substantial rewards as well. In Canada, three-quarters of the wheat area is sown to CGIAR-related cultivars and in the United States almost 60% of the wheat area was sown to CGIAR-related varieties, according to the research.
WHEN
July 21-26, 2019
The opening ceremony and lectures will take place on
Monday, July 22, 2019 from 08:50 to 10:50 a.m.
CGIAR is a global research partnership for a food secure future dedicated to reducing poverty, enhancing food and nutrition security, and improving natural resources.
About the CGIAR Research Program on Wheat
Joining advanced science with field-level research and extension in lower- and middle-income countries, the Agri-Food Systems CGIAR Research Program on Wheat (WHEAT) works with public and private organizations worldwide to raise the productivity, production and affordable availability of wheat for 2.5 billion resource-poor producers and consumers who depend on the crop as a staple food. WHEAT is led by the International Maize and Wheat Improvement Center (CIMMYT), with the International Center for Agricultural Research in the Dry Areas (ICARDA) as a primary research partner. Funding for WHEAT comes from CGIAR and national governments, foundations, development banks and other public and private agencies, in particular the Australian Centre for International Agricultural Research (ACIAR), the UK Department for International Development (DFID) and the United States Agency for International Development (USAID). www.wheat.org
About CIMMYT
The International Maize and Wheat Improvement Center (CIMMYT) is the global leader in publicly funded maize and wheat research and related farming systems. Headquartered near Mexico City, CIMMYT works with hundreds of partners throughout the developing world to sustainably increase the productivity of maize and wheat cropping systems, thus improving global food security and reducing poverty. CIMMYT is a member of CGIAR and leads the CGIAR Research Programs on Maize and Wheat, and the Excellence in Breeding Platform. The center receives support from national governments, foundations, development banks and other public and private agencies.
In a study by the International Maize and Wheat Improvement Center (CIMMYT), water conservation policies by the regional governments of Haryana and Punjab were revealed to actually aggravate air pollution. Read more here.
Experimental harvest of provitamin A-enriched orange maize, Zambia. (Photo: CIMMYT)
In just over a decade there will be around 8.5 billion people on earth, and almost 10 billion by 2050, according to the United Nations World Population Prospects 2019: Highlights.
The report said the newcomers will be concentrated in regions already facing grave food insecurity, rising temperatures, scarce water and erratic rainfall, such as sub-Saharan Africa and South Asia.
Even now, hungry persons worldwide exceed 850 million and an estimated 2 billion suffer micronutrient malnutrition, with costly health and social impacts.
By mid-century 7 of every 10 people will live in cities, according to United Nations data. With more mouths to feed and fewer farmers, food systems will be hard-pressed to grow and supply enough nutritious fare at affordable prices, while mitigating environmental damage.
Facing the challenges
As the examples below show, applied science and partnerships can help address these complex issues.
Decades of research and application by scientists, extension workers, machinery specialists, and farmers are refining and spreading practices that conserve soil and water resources, improve yields under hotter and drier conditions, and reduce the greenhouse gas emissions and pollution associated with maize and wheat farming in Africa, Asia, and Latin America.
A farmer tends a long-term on-farm conservation agriculture trial for a rice-wheat-mungbean cropping system in Rajshahi district, Bangladesh. (Photo: CIMMYT)
The sustained support of funders and policymakers will help ensure that CIMMYT staff and partners are able to continue improving the livelihoods and food security of smallholder farmers and resource-poor consumers, as world population density increases.
Many maize farmers in sub-Saharan Africa grow old varieties that do not cope well under drought conditions. In the Oromia region of Ethiopia, farmer Sequare Regassa is improving her family’s life by growing the newer drought-tolerant maize variety BH661. This hybrid was developed by the Ethiopian Institute of Agricultural Research (EIAR), using CIMMYT’s drought-tolerant inbred lines and one of EIAR’s lines. It was then officially released in 2011 by the EIAR as part of the Drought Tolerant Maize for Africa (DTMA) project, funded by the Bill & Melinda Gates Foundation and continued under the Stress Tolerant Maize for Africa (STMA) initiative.
“Getting a good maize harvest every year, even when it does not rain much, is important for my family’s welfare,” said Regassa, a widow and mother of four, while feeding her granddaughter with white injera, a flat spongy bread made of white grain maize.
Since her husband died, Regassa has been the only breadwinner. Her children have grown up and established their own families, but the whole extended family makes a living from their eight-hectare farm in Guba Sayo district.
Sequare Regassa (wearing green) and her family stand for a group photo at their farm. (Photo: Simret Yasabu/CIMMYT)
On the two hectares Regassa cultivates on her own, she rotates maize with pepper, sweet potato and anchote, a local tuber similar to cassava. Like many farming families in the region, she grows maize mainly for household food consumption, prepared as bread, soup, porridge and snacks.
Maize represents a third of cereals grown in Ethiopia. It is cheaper than wheat or teff — a traditional millet grain — and in poor households it can be mixed with teff to make the national staple, injera.
In April, as Regassa was preparing the land for the next cropping season, she wondered if rains would be good this year, as the rainy season was coming later than usual.
In this situation, choice of maize variety is crucial.
She used to plant a late-maturing hybrid released more than 25 years ago, BH660, the most popular variety in the early 2000s. However, this variety was not selected for drought tolerance. Ethiopian farmers face increasing drought risks which severely impact crop production, like the 2015 El Nino dry spell, leading to food insecurity and grain price volatility.
Under the DTMA project, maize breeders from CIMMYT and the Ethiopian Institute for Agricultural Research (EIAR) developed promising drought-tolerant hybrids which perform well under drought and normal conditions. After a series of evaluations, BH661 emerged as the best candidate with 10% better on-farm grain yield, higher biomass production, shorter maturity and 34% reduction in lodging, compared to BH660.
The resulting BH661 variety was released in 2011 for commercial cultivation in the mid-altitude sub-humid and transition highlands.
The year after, as farmers experienced drought, the Ethiopian extension service organized BH661 on-farm demonstrations, while breeders from CIMMYT and EIAR organized participatory varietal selection trials. Farmers were impressed by the outstanding performances of BH661 during these demos and trials and asked for seeds right away.
Seed companies had to quickly scale up certified seed production of BH661. The STMA project team assisted local seed companies in this process, through trainings and varietal trials. Companies decided to replace the old hybrid, BH660.
Comparison of the amount of certified seed production of BH660 (blue) and BH661 (red) from 2012 to 2018. (Source: Ertiro B.T. et al. 2019)
“In addition to drought tolerance, BH661 is more resistant to important maize diseases like Turcicum leaf blight and grey leaf spot,” explained Dagne Wegary, a maize breeder at CIMMYT. “For seed companies, there is no change in the way the hybrid is produced compared to BH660, but seed production of BH661 is much more cost-effective.”
EIAR’s Bako National Maize Research Center supplied breeder seeds to several certified seed producers: Amhara Seed Enterprise (ASE), Bako Agricultural Research Center (BARC), Ethiopian Seed Enterprise (ESE), Oromia Seed Enterprise (OSE) and South Seed Enterprise (SSE). Certified seeds were then distributed through seed companies, agricultural offices and non-governmental organizations, with the technical and extension support of research centers.
Sequare Regassa stands next to her fields holding a wooden farming tool. (Photo: Simret Yasabu/CIMMYT)
From drought risk to clean water
After witnessing the performance of BH661 in a neighbor’s field, Regassa asked advice from her local extension officer and decided to use it. She is now able to produce between 11-12 tons per hectare. She said her family life has changed forever since she started planting BH661.
With higher maize grain harvest, she is now able to better feed her chickens, sheep and cattle. She also sells some surplus at the local market and uses the income for her family’s needs.
Sequare Regassa feeds her granddaughter with maize injera. (Photo: Simret Yasabu/CIMMYT)
“If farmers follow the recommended fertilizer application and other farming practices, BH661 performs much better than the old BH660 variety,” explained Regassa. “If we experience a drought, it may be not that bad thanks to BH661’s drought tolerance.”
Regassa buys her improved seeds from the Bako Research Station, as well as from farmers’ cooperative unions. These cooperatives access seeds from seed companies and sell to farmers in their respective districts. “Many around me are interested in growing BH661. Sometimes we may get less seeds than requested as the demand exceeds the supply,” Regassa said.
She observed that maize prices have increased in recent years. A 100 kg bag of maize that used to sell for 200–400 Ethiopian birr (about $7–14) now sells for 600–700 Ethiopian birr (about $20–23). With the increased farmers’ wealth in her village, families were able to pay collectively for the installation of a communal water point to get easy access to clean water.
“Like women’s role in society, no one can forget the role maize has in our community. It feeds us, it feeds our animals, and cobs are used as fuel. A successful maize harvest every year is a boon for our village,” Regassa concluded.
In a blog post and video released today, Bill Gates talks about the essential role the CGIAR system plays in feeding the world. He highlights the work the International Maize and Wheat Improvement Center (CIMMYT) is doing to develop and spread the use of drought-tolerant maize varieties. “One of the leading CGIAR research centers is CIMMYT, the International Maize and Wheat Improvement Center. They are working on improvements to maize that are more productive, that are resistant to drought and diseases. It’s a leading example of the amazing work the CGIAR system does to help smallholder farmers,” Gates says.
In 2018, Bill Gates launched a campaign about climate change, because he worried not enough people understood the dimensions of the problem. In a previous blog post, he reminded readers that not only the energy sector is concerned, but also “the other 75%” — in particular agriculture and food systems. We need innovations to reduce our carbon footprint, Gates explained, but also to help the most vulnerable to cope with the effects of growing climate risks.
Rainfed smallholder farming families in sub-Saharan Africa are particularly at risk, as their livelihoods depend on unpredictable rainfall patterns. By the 2030s drought and rising temperatures could render 40% of the continent’s maize-growing area unsuitable for current varieties.
Drought-tolerant maize varieties could improve the climate resilience and the livelihoods of millions family farmers across Africa. The innovations offered by these varieties are affordable and scalable.
Behind the scenes
The video crew films and interview in a seed storage room. (Photo: Jerome Bossuet/CIMMYT)
A team from Gates Notes came to drought-prone Machakos county in Kenya to visit farmers who are growing drought-tolerant hybrid maize. This variety, developed by the International Maize and Wheat Improvement Center (CIMMYT) and sold in the county by Dryland Seeds Limited under the SAWA brand, can yield up to 20% more than other drought-tolerant hybrids, explained the company’s managing director, Ngila Kimotho.
Despite limited rainfall in the village of Vyulya, Veronica Nduku harvested well-filled maize cobs. Her neighbour, who grows a local variety, had a less successful harvest.
CIMMYT developed these varieties under the Drought Tolerant Maize for Africa (DTMA) initiative, a ten-year project which finished in 2015. This work is continuing under the Stress Tolerant Maize for Africa (STMA) initiative, which is developing maize varieties that cope well with drought and other climate stresses. So far 3.5 million farmers in 13 African countries are benefitting from stress-tolerant maize varieties.
The video crew sets up the interview with Veronica Nduku. (Photo: Jerome Bossuet/CIMMYT)
The International Maize and Wheat Improvement Center (CIMMYT) operates five agricultural experiment stations in Mexico. Strategically located across the country to take advantage of different growing conditions — spanning arid northern plains to sub-tropical and temperate climatic zones — the stations offer unique and well-managed testing conditions for a variety of biotic and abiotic stresses.
Heat and drought tolerance in wheat is the focus of study at Ciudad Obregón, while the humid, cool conditions at Toluca are ideal for studying wheat resistance to foliar diseases. The tropical and sub-tropical settings of Agua Fría and Tlaltizapán respectively are suited to maize field trials, while at El Batán researchers carry out a wide variety of maize and wheat trials.
A new video highlights the important and valuable contribution of the five experimental stations in Mexico to CIMMYT’s goal of developing maize and wheat that can cope with demanding environments around the world, helping smallholder farmers in Africa, Asia and Latin America adapt to challenges like climate change, emerging pests and disease, and malnutrition.
Featuring aerial cinematography and interviews with each station’s manager, the video takes viewers on a journey to each experimental station to highlight the research and management practices specific to each location.
In addition to their role in breeding maize and wheat varieties, CIMMYT’s experimental stations host educational events throughout the year that train the next generation of farmers, policymakers and crop scientists. They also provide the canvas on which CIMMYT scientists develop and test farming practices and technologies to help farmers grow more with less.
Some of the stations also hold historical significance. Ciudad Obregón and Toluca are two of the sites where Norman Borlaug set up his shuttle breeding program that provided the foundations of the Green Revolution. It was also in Toluca, while at a trial plot alongside six young scientists from four developing nations, where Borlaug first received news of his 1970 Nobel Peace Prize award.
Derek Byerlee has worked and published worldwide to promote food security and improved livelihoods through sustainable agriculture. (Photo: Elizabeth Powell/Georgetown University)
Derek Byerlee, former director of CIMMYT’s economics program, has been named an Officer of the Order of Australia, the country’s second-highest membership honor, for his distinguished service to sustainable development, poverty reduction, and food security.
The award was among those announced by Australia on June 10, 2019, as part of birthday commemorations for Queen Elizabeth II.
“This was all quite a surprise to me,” said Byerlee, currently an Adjunct Professor at Georgetown University in Washington D.C. and making arrangements to attend the award ceremony in Australia in September.
Byerlee holds CIMMYT in special regard. “CIMMYT was the highlight of my career,” he explained.
Interested in agriculture since his childhood on a sheep and wheat farm near Orroroo in the South Australian Wheat Belt, Byerlee joined CIMMYT in 1977 as one of its first economists, with stints in Mexico and South Asia. He led CIMMYT economics research during 1987-94 and is fondly remembered by colleagues and support staff from that period.
“Derek has made an immense contribution to the developing world and the profession,” said Olaf Erenstein, current director of the CIMMYT socioeconomics program. “He helped put CIMMYT and its economics program on the global map of research for development. His humble yet insightful contributions guided the way for many, including myself.”
Byerlee moved to the World Bank in 1994, heading its support to agricultural research before becoming Rural Strategy Adviser. He later led the team that produced the agency’s influential 2008 World Development Report Agriculture for Development, one of the Bank’s most respected and widely quoted publications and its first ever to focus on agricultural development.
With a Bachelor of Agricultural Sciences from the University of Adelaide, a master’s degree on Agricultural Economics from the University of New England, New South Wales, and a doctoral degree in agricultural economics from Oregon State University, prior to CIMMYT Byerlee worked in the Agricultural Economics program of Michigan State University and at Njala University, Sierra Leone.
Since retiring from the World Bank, he has held diverse consultancy and advisory roles, including Chair of the Standing Panel on Impact Assessment of CGIAR, Member of the Technical Advisory Committee of the Global Agricultural and Food Security Program, and Visiting Scholar at Stanford University.
Byerlee has published widely on agriculture research policy and impacts, farming systems and technology adoption, food pricing policy and land-use changes, and is a Fellow of the American Association of Agricultural Economics.
“Working with these excellent students gives me a sense of optimism about the future of the world,” Byerlee stated in a recent article in The Flinders News.
Northwestern India is home to millions of smallholder farmers making it a breadbasket for grain staples. Since giving birth to the Green Revolution it has continued to increase its food production through rice and wheat farming providing food security to the region.
This high production has not come without shortfalls; groundwater tables are falling from excessive irrigation and climate change has brought erratic rainfall. In response, the state governments of Haryana and Punjab introduced separate legislation forcing farmers to delay rice planting to coincide with the arrival of the monsoonal rains in late June.
With rice sowing pushed back to tackle a looming water crisis, the time available between harvesting rice and planting wheat has been reduced. Consequently, the majority of farmers opt to burn the post-harvest rice straw to quickly prepare their fields for wheat. The majority of the 34 tons of rice residues the region produces is burned in a short window of time, throwing a lot of toxic smoke into the air.
New research, by the International Maize and Wheat Improvement Center (CIMMYT), delved into linkages between groundwater and agricultural burning policies. The study uncovered that groundwater conservation policies in Haryana and Punjab are exacerbating the nation’s air pollution crisis by concentrating crop residue burning in the late fall.
“Despite being illegal, the burning of post-harvest rice residues continues to be the most common practice of crop residue management, and while groundwater policies are helping arrest water depletion, they also appear to be exacerbating one of the most acute public health problems confronting India – air pollution,” said CIMMYT scientist and author of the study, Balwinder Singh.
Millions of farmers burn the straw that remains after the rice harvest to prepare their fields for a wheat crop. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
Getting to the guts of air pollution’s chokehold on India
Air pollution in India has increased significantly since 2000. Each fall, from late October to November, a toxic fog containing a mixture of dust, carbon and particles covers northwestern India. For the 18.6 million who live in New Delhi the smog not only brings daily life to a standstill but slices years off life expectancy. It kills an estimated 1.5 million people every year, with nearly half of these deaths occurring in the Indo-Gangetic Plains, the northernmost part of the country that includes New Delhi.
The analysis suggests that temporal changes in burning are a prime contributor to the air quality crisis. The limited amount of time to prepare fields for wheat planting has caused fire intensity to increase by 39 percent, peaking in November with a maximum of 681 fires per day. This increase occurs when temperatures in New Delhi are lower and winds are weak. The still conditions trap pollution and limit the amount that can escape.
Recognizing policy tradeoffs is important for sustainable agricultural intensification
Agriculture for development researchers with CIMMYT investigate how best to sustainably intensify food production. This seeks to produce more food, improve nutrition and livelihoods, and boost rural incomes without an increase in inputs – such as land and water – while reducing environmental impacts. Policies can help to shape efforts towards sustainable intensification by encouraging farming practices that save resources and protect the environment. However, it is important that governments strike the right balance between food security, resource depletion and environmental quality.
The research results shed light on the sustainability challenges confronting many highly productive agricultural systems, where addressing one problem can exacerbate others, said Andrew McDonald, a professor at Cornell University and co-author of the study.
“Identifying and managing tradeoffs and capitalizing on synergies between crop productivity, resource conservation, and environmental quality is essential,” he said.
Policies to promote sustainable intensification can also burst India’s pollution bubble
Surface crop residue retention and incorporation are the promising on-farm management options to address the issue of burning as well as maintaining soil health and long-term sustainability, said M.L. Jat, a scientist with CIMMYT who coordinates sustainable intensification programs in northwestern India.
Apart from pumping toxic smoke into the air, ash left on fields after residue burning can negatively affect soil health in the long term. However, if residue is mulched into the soil, nutrient levels improve and carbon sequestration capacity increases, lowering the release of greenhouse gases. Additionally, residue retention reduces evaporation and increases soil moisture by as much as 10 percent during the wheat-growing season.
“A sensible approach for overcoming tradeoffs will embrace agronomic technologies such as the Happy Seeder, a seed drill that plants seeds without impacting crop residue, providing farmers the technical means to avoid residue burning,” he explained.
“When rice is ready to be reaped, a tractor or a harvester collects the grain, a spreader distributes the straw that remains on the ground and the Happy Seeder drills into the land to seed wheat,” Jat said. “Farmers no longer need to till the land to plant their wheat, instead they practice a form of conservation agriculture.”
M. L. Jat, CIMMYT Cropping Systems Agronomist with a no-till planter that facilitates no-burn farming. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
Researchers at CIMMYT and Punjab Agricultural University have undertaken extensive trials in farmer fields and the new technology has proven itself as a step forward for developing viable solution to rice crop residue burning.
The Indian government launched a $157 million initiative to discourage burning through agricultural machinery innovations. However, the Happy Seeder is yet to be adopted widely. It is estimated that to cover 50 percent, 5 million ha, of the total acreage under rice-wheat cropping systems in India, about 60,000 Happy Seeders are needed. At present, there are only about 10,000 available.
A recent policy brief suggests rapid adoption needs a major government push to publicize and popularize the technology. The brief suggests delivery of machinery hire services through Primary Agriculture Cooperative Societies and private entrepreneurs with ongoing government support is a viable tool to equitably reach farmers.
Over the last few years, the research and development communities have deemed “scaling” a priority in order to help contribute to and achieve the Sustainable Development Goals (SDGs). On smaller scales, there has been great success in reducing hunger and poverty, but it has rarely expanded to regional or national levels.
The International Maize and Wheat Improvement Center (CIMMYT) scaling head Lennart Woltering, in collaboration with colleagues Kate Fehlenberg and Bruno Gerard, as well as with international development experts Jan Ubels of SNV and Larry Cooley of Management Systems International, have been studying the process of scaling to understand why successful pilot projects are no guarantee for success at scale.
In a new paper published in Agricultural Systems, they argue that pilot projects are usually set up and managed in heavily controlled environments that do not reflect the reality at scale. Furthermore, confusion of what scaling is and how it can be executed often results in a narrow focus on solely reaching numbers.
“Counting household adoption of a practice at the end of a project is a poor metric of whether these people can and will sustain adoption after the project ends, let alone if adoption will reach others and actually contributes to improved livelihoods,” Woltering states.
According to Woltering, “This paper is a call for a new scaling narrative, from one that is short-term and piecemeal, to one that recognizes the systemic nature of problems and solutions to achieve sustainable change at scale.”
This requires a change in mindset, skills and ways of collaborating than what we currently consider normal. “Meaningful impact at scale hardly occurs within a project context, but when new ways of working are becoming ‘the new normal’ by a critical mass of actors ‘in the real world’,” Woltering explained.
The authors present a number of frameworks that help to assess the scalability of innovations and the design of scaling strategies from the onset of projects and how to systematically think through key elements needed for scaling success. This includes CIMMYT’s very own Scaling Scan. Reaching the SDGs requires scaling interventions to be seen as building blocks within a system of other initiatives with the same goals.
