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funder_partner: CGIAR Research Program on Wheat (WHEAT)

Joining advanced science with field-level research and extension in lower- and middle-income countries, the 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).

https://wheat.org/

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

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

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

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

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

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

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

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

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

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

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

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

Read the full study

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


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

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

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

Spokespersons:

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

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

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


About CIMMYT

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

About The Nature Conservancy – India

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

Warmer night temperatures reduce wheat yields in Mexico, scientists say

As many regions worldwide baked under some of the most persistent heatwaves on record, scientists at a major conference in Canada shared data on the impact of spiraling temperatures on wheat.

In the Sonora desert in northwestern Mexico, nighttime temperatures varied 4.4 degrees Celsius between 1981 and 2018, research from the International Maize and Wheat Improvement Center (CIMMYT) shows. Across the world in Siberia, nighttime temperatures rose 2 degrees Celsius between 1988 and 2015, according to Vladimir Shamanin, a professor at Russia’s Omsk State Agrarian University who conducts research with the Kazakhstan-Siberia Network on Spring Wheat Improvement.

“Although field trials across some of the hottest wheat growing environments worldwide have demonstrated that yield losses are in general associated with an increase in average temperatures, minimum temperatures at night — not maximum temperatures — are actually determining the yield loss,” said Gemma Molero, the wheat physiologist at CIMMYT who conducted the research in Sonora, in collaboration with colleague Ivan Ortiz-Monasterio.

“Of the water taken up by the roots, 95% is lost from leaves via transpiration and from this, an average of 12% of the water is lost during the night. One focus of genetic improvement for yield and water-use efficiency for the plant should be to identify traits for adaptation to higher night temperatures,” Molero said, adding that nocturnal transpiration may lead to reductions of up to 50% of available soil moisture in some regions.

Wheat fields at CIMMYT's experimental station near Ciudad Obregón, Sonora, Mexico. (Photo: M. Ellis/CIMMYT)
Wheat fields at CIMMYT’s experimental station near Ciudad Obregón, Sonora, Mexico. (Photo: M. Ellis/CIMMYT)

Climate challenge

The Intergovernmental Panel on Climate Change (IPCC) reported in October that temperatures may become an average of 1.5 degrees Celsius warmer in the next 11 years. A new IPCC analysis on climate change and land use due for release this week, urges a shift toward reducing meat in diets to help reduce agriculture-related emissions from livestock. Diets could be built around coarse grains, pulses, nuts and seeds instead.

Scientists attending the International Wheat Congress in Saskatoon, the city at the heart of Canada’s western wheat growing province of Saskatchewan, agreed that a major challenge is to develop more nutritious wheat varieties that can produce bigger yields in hotter temperatures.

CIMMYT wheat physiologist Gemma Molero presents at the International Wheat Congress. (Photo: Marcia MacNeil/CIMMYT)
CIMMYT wheat physiologist Gemma Molero presents at the International Wheat Congress. (Photo: Marcia MacNeil/CIMMYT)

As a staple crop, wheat provides 20% of all human calories consumed worldwide. It is the main source of protein for 2.5 billion people in the Global South. Crop system modeler Senthold Asseng, a professor at the University of Florida and a member of the International Wheat Yield Partnership, was involved in an extensive study  in China, India, France, Russia and the United States, which demonstrated that for each degree Celsius in temperature increase, yields decline by 6%, putting food security at risk.

Wheat yields in South Asia could be cut in half due to chronically high temperatures, Molero said. Research conducted by the University of New South Wales, published in Environmental Research Letters also demonstrates that changes in climate accounted for 20 to 49% of yield fluctuations in various crops, including spring wheat. Hot and cold temperature extremes, drought and heavy precipitation accounted for 18 to 4% of the variations.

At CIMMYT, wheat breeders advocate a comprehensive approach that combines conventional, physiological and molecular breeding techniques, as well as good crop management practices that can ameliorate heat shocks. New breeding technologies are making use of wheat landraces and wild grass relatives to add stress adaptive traits into modern wheat – innovative approaches that have led to new heat tolerant varieties being grown by farmers in warmer regions of Pakistan, for example.

More than 800 global experts gathered at the first International Wheat Congress in Saskatoon, Canada, to strategize on ways to meet projected nutritional needs of 60% more people by 2050. (Photo: Matthew Hayes/Cornell University)
More than 800 global experts gathered at the first International Wheat Congress in Saskatoon, Canada, to strategize on ways to meet projected nutritional needs of 60% more people by 2050. (Photo: Matthew Hayes/Cornell University)

Collaborative effort

Matthew Reynolds, a distinguished scientist at CIMMYT, is joint founder of the Heat and Drought Wheat Improvement Consortium (HeDWIC), a coalition of hundreds of scientists and stakeholders from over 30 countries.

“HeDWIC is a pre-breeding program that aims to deliver genetically diverse advanced lines through use of shared germplasm and other technologies,” Reynolds said in Saskatoon. “It’s a knowledge-sharing and training mechanism, and a platform to deliver proofs of concept related to new technologies for adapting wheat to a range of heat and drought stress profiles.”

Aims include reaching agreement across borders and institutions on the most promising research areas to achieve climate resilience, arranging trait research into a rational framework, facilitating translational research and developing a bioinformatics cyber-infrastructure, he said, adding that attracting multi-year funding for international collaborations remains a challenge.

Nitrogen traits

Another area of climate research at CIMMYT involves the development of an affordable alternative to the use of nitrogen fertilizers to reduce planet-warming greenhouse gas emissions. In certain plants, a trait known as biological nitrification inhibition (BNI) allows them to suppress the loss of nitrogen from the soil, improving the efficiency of nitrogen uptake and use by themselves and other plants.

CIMMYT's director general Martin Kropff speaks at a session of the International Wheat Congress. (Photo: Matthew Hayes/Cornell University)
CIMMYT’s director general Martin Kropff speaks at a session of the International Wheat Congress. (Photo: Matthew Hayes/Cornell University)

Scientists with the BNI research consortium, which includes Japan’s International Research Center for Agricultural Sciences (JIRCAS), propose transferring the BNI trait from those plants to critical food and feed crops, such as wheat, sorghum and Brachiaria range grasses.

“Every year, nearly a fifth of the world’s fertilizer is used to grow wheat, yet the crop only uses about 30% of the nitrogen applied, in terms of biomass and harvested grains,” said Victor Kommerell, program manager for the multi-partner CGIAR Research Programs (CRP) on Wheat and Maize led by the International Maize and Wheat Improvement Center.

“BNI has the potential to turn wheat into a highly nitrogen-efficient crop: farmers could save money on fertilizers, and nitrous oxide emissions from wheat farming could be reduced by 30%.”

Excluding changes in land use such as deforestation, annual greenhouse gas emissions from agriculture each year are equivalent to 11% of all emissions from human activities. About 70% of nitrogen applied to crops in fertilizers is either washed away or becomes nitrous oxide, a greenhouse gas 300 times more potent than carbon dioxide, according to Guntur Subbarao, a principal scientist with JIRCAS.

Hans-Joachim Braun,
Director of CIMMYT’s Global Wheat Program and the CGIAR Research Program on Wheat, speaks at the International Wheat Congress. (Photo: Marcia MacNeil/CIMMYT)

Although ruminant livestock are responsible for generating roughly half of all agricultural production emissions, BNI offers potential for reducing overall emissions, said Tim Searchinger, senior fellow at the World Resources Institute and technical director of a new report titled “Creating a Sustainable Food Future: A Menu of Solutions to Feed Nearly 10 Billion People by 2050.”

To exploit this roots-based characteristic, breeders would have to breed this trait into plants, said Searchinger, who presented key findings of the report in Saskatoon, adding that governments and research agencies should increase research funding.

Other climate change mitigation efforts must include revitalizing degraded soils, which affect about a quarter of the planet’s cropland, to help boost crop yields. Conservation agriculture techniques involve retaining crop residues on fields instead of burning and clearing. Direct seeding into soil-with-residue and agroforestry also can play a key role.

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

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

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

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

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

A burning issue

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

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

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

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

Win-win

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

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

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

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

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

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

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

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

Read the full study in Science

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

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

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

CRP Wheat Annual Report 2018

The newly released CGIAR Research Program on Wheat (WHEAT) Annual Report 2018 highlights joint achievements that are making an invaluable contribution to global food security, especially for the 2.5 billion people who depend on wheat for their livelihoods.

The report describes work with national and global partners using state of the art technology to measure traits and performance for faster development of high-yielding, heat- and drought-tolerant varieties; rapidly diagnosing diseases in farmers’ fields; supporting gender equality in agricultural innovations, and much more.

With its national partners, WHEAT released 48 new CGIAR-derived wheat varieties to farmers in 2018, and developed 11 innovations related to farm management practices or social sciences.

Read the full report online

Download a PDF Version of the report

Download a PDF of the 2019 Technical Annual Report 

New publications: A study of water markets in Bangladesh

Domestic rice and wheat production in Bangladesh has more than doubled in the last 30 years, despite declining per capita arable land. The fact that the country is now almost self-sufficient in staple food production is due in large part to successful and rapid adoption of modern, high-yielding crop varieties. This has been widely documented, but less attention has been paid to the contribution of small-scale irrigation systems, whose proliferation has enabled double rice cropping and a competitive market system in which farmers can purchase irrigation services from private pump owners at affordable rates.

However, excess groundwater abstraction in areas of high shallow tube-well density and increased fuel costs for pumping have called into question the sustainability of Bangladesh’s groundwater irrigation economy. Cost-saving agronomic methods are called for, alongside aligned policies, markets, and farmers’ incentives.

A recent study by researchers at the International Maize and Wheat Improvement Center (CIMMYT) examines the different institutions and water-pricing methods for irrigation services that have emerged in Bangladesh, each of which varies in their incentive structure for water conservation, and the level of economic risk involved for farmers and service providers.

Using primary data collected from 139 irrigation service providers and 556 client-farmers, the authors assessed the structure of irrigation service types as well as the associated market and institutional dimensions. They found that competition between pump owners, social capital, and social relationship between of pump owners and client farmers, significantly influence the structure of irrigation services and irrigation water pricing methods. Greater competition between pump owners, for instance, increases the likelihood of pay-per-hour services while reducing that of crop sharing arrangements.

Based on these and other findings, authors made policy recommendations for enhancing irrigation services and sustainability in Bangladesh. As Bangladesh is already highly successful in terms of the conventional irrigation system, the authors urge taking it to the next level for sustainability and efficiency.

Currently Bangladesh’s irrigation system is based on centrifugal pumps and diesel engines. The authors suggest scaling out the energy efficient axial flow pump, and the alternate wetting and drying system for water conservation and irrigation efficiency. They also recommend further investment in rural electrification to facilitate the use of electric motors, which can reduce air pollution by curbing dependency on diesel engines.

Read the full article:
Understanding clients, providers and the institutional dimensions of irrigation services in developing countries: A study of water markets in Bangladesh” in Agricultural Water Management, Volume 222, 1 August 2019, pages 242-253.

This study was made possible through the support provided by the United States Agency for International Development (USAID) and the Bill & Melinda Gates Foundation to the Cereal Systems Initiative for South Asia (CSISA). Additional support was provided by the CGIAR Research Programs on Maize (MAIZE) and Wheat (WHEAT).

Local irrigation service providers in southern Bangladesh demonstrate the use of a two-wheeled tractor to power an axial flow pump to provide fuel-efficient surface water irrigation. (Photo: Tim Krupnik/CIMMYT)
Local irrigation service providers in southern Bangladesh demonstrate the use of a two-wheeled tractor to power an axial flow pump to provide fuel-efficient surface water irrigation. (Photo: Tim Krupnik/CIMMYT)

Read more recent publications by CIMMYT researchers:

  1. A spatial framework for ex-ante impact assessment of agricultural technologies. 2019. Andrade, J.F., Rattalino Edreira, J.I., Farrow, A., Loon, M.P. van., Craufurd, P., Rurinda, J., Shamie Zingore, Chamberlin, J., Claessens, L., Adewopo, J., Ittersum, M.K. van, Cassman, K.G., Grassini, P. In: Global Food Security v. 20, p. 72-81.
  2. Assessing genetic diversity to breed competitive biofortified wheat with enhanced grain ZN and FE concentrations. 2019. Velu, G., Crespo-Herrera, L.A., Guzman, C., Huerta-Espino, J., Payne, T.S., Singh, R.P. In: Frontiers in Plant Science v. 9, art. 1971.
  3. Genome-wide association mapping and genomic prediction analyses reveal the genetic architecture of grain yield and flowering time under drought and heat stress conditions in maize. 2019. Yibing Yuan, Cairns, J.E., Babu, R., Gowda, M., Makumbi, D., Magorokosho, C., Ao Zhang, Yubo Liu, Nan Wang, Zhuanfang Hao, San Vicente, F.M., Olsen, M., Prasanna, B.M., Yanli Lu, Zhang, X. In: Plant Breeding v. 9, art. 1919.
  4. Diversifying conservation agriculture and conventional tillage cropping systems to improve the wellbeing of smallholder farmers in Malawi. 2019. TerAvest, D., Wandschneider, P.R., Thierfelder, C., Reganold, J.P. In: Agricultural Systems v. 171, p. 23-35.
  5. Biofortified maize can improve quality protein intakes among young children in southern Ethiopia. 2019. Gunaratna, N.S., Moges, D., De Groote, H. Nutrients v. 11, no. 1, art. 192.

Scientist Bekele Abeyo details research in Africa with BBC

CIMMYT’s representative in Ethiopia, Bekele Abeyo, gives an interview for Ethiopian media. (Photo: Jérôme Bossuet/CIMMYT)
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.

Interview starts at 31:00:
https://www.bbc.co.uk/sounds/play/w172wpkb45wc459

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.

The new challenges of wheat improvement

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)
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.

Interview starts at 43:23:
https://www.bbc.co.uk/sounds/play/w172wpkb45wcm4t

Govindan was speaking from the International Wheat Congress in the city of Saskatoon in Canada’s breadbasket province on the prairies, Saskatchewan.

Int’l Wheat Congress: Bangladesh’s success sung in Saskatoon

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.

Top scientists from CGIAR to present latest research at International Wheat Congress in Canada

FOR IMMEDIATE RELEASE

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.

WHERE

TCU Place
35 22nd Street East,
Saskatoon, SK S7K 0C8, Canada
https://g.page/TCUPlace


CONTACTS

For further information, or to arrange interviews, please contact:

Marcia MacNeil: m.macneil@cgiar.org

Julie Mollins: j.mollins@cgiar.org


About CGIAR

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.

Modern wheat breeding benefits high- and low-input farmers, study shows

Farmer Gashu Lema’s son harvests improved variety “Kubsa” wheat, Gadulla village, Mojo, Ethiopia. (Photo: P. Lowe/CIMMYT/P. Lowe

A recent article in the journal Nature Plants validates the work of wheat breeders who produce yield-boosting varieties for farmers across a range of incomes and environments.

Based on a rigorous large-scale study spanning five decades of wheat breeding progress under cropping systems with low, medium and high fertilizer and chemical plant protection usage, the authors conclude that modern wheat breeding practices aimed at high-input farming systems have promoted genetic gains and yield stability across a wide range of environments and management conditions.

In other words, wheat breeding benefits not only large-scale and high-input farmers but also resource-poor, smallholder farmers who do not use large amounts of fertilizer, fungicide, and other inputs.

This finding underscores the efficiency of a centralized breeding effort to improve livelihoods across the globe – the philosophy behind the breeding programs of the International Maize and Wheat Improvement Center (CIMMYT) over the past 50 years.

It also contradicts a commonly held belief that breeding for intensive systems is detrimental to performance under more marginal growing environments, and refutes an argument by Green Revolution critics that breeding should be targeted to resource-poor farmers.

In a commentary published in the same Nature Plants issue, two CIMMYT scientists — Hans Braun, director of CIMMYT’s global wheat program and the CGIAR Research Program on Wheat, and Matthew Reynolds, CIMMYT wheat physiologist — note the significance of the study.

“Given that wheat is the most widely grown crop in the world, sown annually on around 220 million ha and providing approximately 20% of human calories and protein, the social and economic implications are large,“ they state.

Among other implications:

  • The study found that modern breeding has reduced groups of genes (haplotypes) with negative or neutral effects – a finding which will help breeders combine positive haplotypes in the future, including for hybrid breeding.
  • The study demonstrates the benefits of breeding for overall yield potential, which — given that wheat is grown over a wider range of environments, altitudes and latitudes than any other crop, with widely ranging agronomic inputs – has significant cost-saving implications.

Braun and Reynolds acknowledge that the longstanding beliefs challenged by this study have a range of influences, from concern about rural livelihoods, to the role of corporate agribusiness and the capacity of Earth’s natural resources to sustain 10 billion people.

While they welcome the conclusions as a validation of their work, they warn against seeing the study as “a rubber stamp for all things ‘high-input’” and encourage openness to new ideas as the need arises.

“If the climate worsens, as it seems destined to, we must certainly be open to new ways of doing business in crop improvement, while having the common sense to embrace proven technologies,” they conclude.

The case for rushing farmer access to BARI Gom 33

In 2016, the emergence of wheat blast, a devastating seed- and wind-borne pathogen, threatened an already precarious food security situation in Bangladesh and South Asia.

In a bid to limit the disease’s impact in the region, the Bangladesh Agricultural Research Institute (BARI) collaborated with the International Maize and Wheat Improvement Center (CIMMYT) and researchers from nearly a dozen institutions worldwide to quickly develop a long-term, sustainable solution.

The result is BARI Gom 33, a new blast-resistant, high-yielding, zinc-fortified wheat variety, which Bangladesh’s national seed board approved for dissemination in 2017. In the 2017-18 season, the Bangladesh Wheat Research Council provided seed for multiplication and the country’s Department of Agricultural Extension established on-farm demonstrations in blast prone districts.

However, the process of providing improved seed for all farmers can be a long one. In a normal release scenario, it can take up to five years for a new wheat variety to reach those who need it, as nucleus and breeder seeds are produced, multiplied and certified before being disseminated by extension agencies. Given the severity of the threat to farmer productivity and the economic and nutritional benefits of the seed, scientists at CIMMYT argue that additional funding should be secured to expedite this process.

According a new study on the economic benefits of BARI Gom 33, 58 percent of Bangladesh’s wheat growing areas are vulnerable to wheat blast. The rapid dissemination of seed can help resource-poor farmers better cope with emerging threats and changing agro-climatic conditions, and would play a significant role in combatting malnutrition through its increased zinc content. It could also have a positive effect on neighboring countries such as India, which is alarmingly vulnerable to wheat blast.

“Our simulation exercise shows that the benefits of disseminating BARI Gom 33 far exceed the seed multiplication and dissemination costs, which are estimated at around $800 per hectare,” explains Khondoker Mottaleb, CIMMYT socioeconomist and lead author of the study. Even in areas unaffected by wheat blast, scaling out BARI Gom 33 could generate a net gain of $8 million for farmers due to its 5 percent higher average yield than other available varieties. These benefits would nearly double in the case of an outbreak in blast-affected or blast-vulnerable districts.

More than 50 percent of Bangladesh’s wheat growing areas are vulnerable to wheat blast. (Source: Mottaleb et al.)

Based on these findings, the authors urge international development organizations and donor agencies to continue their support for BARI Gom 33, particularly for government efforts to promote the blast-resistant variety. The minimum seed requirement to begin the adoption and diffusion process in the 2019-20 wheat season will be 160 metric tons, which will require an initial investment of nearly $1 million for seed multiplication.

Read more study results and recommendations:
“Economic Benefits of Blast-Resistant Biofortified Wheat in Bangladesh: The Case of BARI Gom 33” in Crop Protection, Volume 123, September 2019, Pages 45-58.

This study was supported by the CGIAR Research Program on wheat agri-food systems (CRP WHEAT), the Australian Centre for International Agricultural Research (ACIAR), the CGIAR Research Program on Agriculture for Nutrition and Health (CRP-A4NH), and the HarvestPlus challenge program (partly funded by the Bill and Melinda Gates Foundation).

Top shelf: Who has access to the healthiest processed foods?

In 2013, Mexico had the fourth highest sales of ultra-processed products worldwide. This is indicative of one of the most important changes in food systems in middle-income countries in recent years: the shift away from meals prepared at home with fresh or minimally processed products towards meals that include ultra-processed foods.

“Typically, these products do not have any wholefood ingredient, are ready to eat, and are high in fat, sodium and sugar but low in fiber, protein and vitamins,” says Ana Gaxiola, a nutritionist consultant working with the International Maize and Wheat Improvement Center (CIMMYT). “The health risks associated with their consumption have important, long-term implications for the health and nutritional status of individuals, families and communities.”

Latin America has a sophisticated maize and wheat processing sector with the potential to segment urban markets according to income, preferences and knowledge. This has important implications for equity in access to food with higher nutritional value.

In 2018, CIMMYT researchers began a new investigative project in collaboration with two CGIAR research programs, Agriculture for Health and Nutrition (A4NH) and WHEAT, seeking to understand how affordability affects diets in different areas of Mexico City. “We want to better understand access to healthier maize- and wheat-based foods across differences in purchasing power,” explains CIMMYT senior economist Jason Donovan. “Part of that involves looking at what processed products are available at what price and in different neighborhoods and the dietary implications of that.”

A researcher captures nutritional information from a packet of tortillas. (Photo: Emma Orchardson/CIMMYT)
A researcher captures nutritional information from a packet of tortillas. (Photo: Emma Orchardson/CIMMYT)

This is relatively new territory for those involved. “This kind of research has been done before,” explains Gaxiola, “but only looking at supermarkets in Mexico City and without differentiating between socioeconomic levels.” Previous studies have also failed to include data from abarrotes, the small convenience stores ubiquitous throughout the city.

The study compares Polanco and San Vicente, two neighborhoods in Mexico City chosen to represent high- and low-income areas, respectively. Using economic data in combination with label and packaging information it analyzes the variation in availability of processed and ultra-processed maize and wheat products, taking into account ingredients, nutritional content, portion size, price and other added value. The study will later include a qualitative element, in which the team will conduct interviews with shop managers to find out how they decide which products to stock, and with consumers to discuss the products they buy and the factors influencing their decisions.

“We’re also interested in how the products are being promoted,” says Miriam Perez Luna, a CIMMYT research assistant involved in the study. “Do companies employ celebrity endorsements or cartoons to appeal to children? Do they have any special certifications based on where or how the products were produced? This information goes into our database so we can examine how products are being marketed, whether in stores or online and through social media.”

In a small food shop in San Vicente, a low-income area, snacks high in salt and sugar line the shelves. (Photo: Emma Orchardson/CIMMYT)
In a small food shop in San Vicente, a low-income area, snacks high in salt and sugar line the shelves. (Photo: Emma Orchardson/CIMMYT)

Now at the end of the data collection period, Gaxiola and a team of researchers have collected more than 20,000 images of packaging, bar codes and nutritional information for a variety of products including biscuits, breads, cakes, cereals, flours, pastas, soups and tortillas. Once the data has been cleaned, they will begin to analyze each individual product and create an index for how healthy they are. Preliminary results from the study will be made available later in the year, but the team are keen to share some of their initial observations.

They were unsurprised to note that many products were more expensive in the upscale Polanco neighborhood, and smaller convenience stores tended to charge more for certain products than larger supermarkets.

There have however, been some unexpected findings. For example, many of the discussions about lack of access to nutritious food options focus on the diets of the urban poor, but there may be reason to believe that affluent consumers face similar challenges. “You’ll be surprised to hear that a lot of what we found in Polanco was not that healthy, because most of it is heavily processed,” says Gaxiola.

Based on the Pan-American Health Organization’s classification system, a product containing more than one milligram of sodium per calorie, 10% refined sugar and 30% total fat is an unhealthy one. “We still need to carry out the analysis, but I’d say more than 70% of the products we’ve encountered could be deemed unhealthy, based on this classification system.”

In a small supermarket in San Vicente, the research team found nearly 50 different types of biscuits and around 80 savory maize-based snacks like chips and tortillas. (Photo: Emma Orchardson/CIMMYT)
In a small supermarket in San Vicente, the research team found nearly 50 different types of biscuits and around 80 savory maize-based snacks like chips and tortillas. (Photo: Emma Orchardson/CIMMYT)

The implications of this are significant for a country like Mexico, which currently faces an epidemic of obesity and overweight. “There’s a lot of advocacy now around nutritional information, but it can be hard to understand sometimes, even for me,” says Gaxiola. “It has to be become something that everyone can understand and use to make healthier choices.”

For this to happen it is important to close the data gap on how urban consumers interact with their food environments. Understanding how they choose among different types of maize- and wheat-based products and how much of this is shaped by socioeconomic disparities is a key first step towards engaging with the private and public sectors on options for promoting healthier processed wheat and maize products in fast-evolving food systems.

This study is being carried out by the International Maize and Wheat Improvement Center (CIMMYT) and supported by the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) and the CGIAR Research Program on Wheat (WHEAT).

This story is part of our coverage of the EAT Stockholm Food Forum 2019.
See other stories and the details of the side event in which CIMMYT is participating.

Mexican Secretary of Agriculture joins new partners and longtime collaborators in Obregon

Secretary Villalobos (center) tours the wheat fields at the experimental station in Obregón with CIMMYT scientists. (Photo: Ernesto Blancarte)
Secretary Villalobos (center) tours the wheat fields at the experimental station in Obregón with CIMMYT scientists. (Photo: Ernesto Blancarte)

“The dream has become a reality.” These words by Victor Manuel Villalobos Arambula, Secretary of Agriculture and Rural Development of Mexico, summed up the sentiment felt among the attendees at the International Maize and Wheat Improvement Center (CIMMYT) Global Wheat Program Visitors’ Week in Ciudad Obregon, Sonora.

In support of the contributions to global and local agricultural programs, Villalobos spoke at the week’s field day, or “Dia de Campo,” in front of more than 200 CIMMYT staff and visitors hailing from more than 40 countries on March 20, 2019.

Villalobos recognized the immense work ahead in the realm of food security, but was optimistic that young scientists could carry on the legacy of Norman Borlaug by using the tools and lessons that he left behind. “It is important to multiply our efforts to be able to address and fulfill this tremendous demand on agriculture that we will face in the near future,” he stated.

The annual tour at the Campo Experimental Norman E. Borlaug allows the global wheat community to see new wheat varieties, learn about latest research findings, and hold meetings and discussions to collaborate on future research priorities.

Given the diversity of attendees and CIMMYT’s partnerships, it is no surprise that there were several high-level visits to the field day.

A high-level delegation from India, including Balwinder Singh Sidhu, commissioner of agriculture for the state of Punjab, AK Singh, deputy director general for agricultural extension at the Indian Council of Agricultural Research (ICAR), and AS Panwar, director of ICAR’s Indian Institute of Farming Systems Research, joined the tour and presentations. All are longtime CIMMYT collaborators on efforts to scale up and disseminate sustainable intensification and climate smart farming practices.

Panwar, who is working with CIMMYT and partners to develop typologies of Indian farming systems to more effectively promote climate smart practices, was particularly interested in the latest progress in biofortification.

“One of the main objectives of farming systems is to meet nutrition of the farming family. And these biofortified varieties can be integrated into farming systems,” he said.

Secretary Villalobos (right) and Hans Braun, Program Director for CIMMYT's Global Wheat Program, stand for a photograph in a wheat field at the experimental station in Obregón. (Photo: Ernesto Blancarte)
Secretary Villalobos (right) and Hans Braun, Program Director for CIMMYT’s Global Wheat Program, stand for a photograph in a wheat field at the experimental station in Obregón. (Photo: Ernesto Blancarte)

In addition, a delegation from Tunisia, including dignitaries from Tunisia’s National Institute of Field Crops (INGC), signed a memorandum of understanding with CIMMYT officials to promote cooperation in research and development through exchange visits, consultations and joint studies in areas of mutual interest such as the diversification of production systems. INGC, which conducts research and development, training and dissemination of innovation in field crops, is already a strong partner in the CGIAR Research Program on Wheat’s Precision Phenotyping Platform for Wheat Septoria leaf blight.

At the close of the field day, CIMMYT wheat scientist Carolina Rivera was honored as one of the six recipients of the annual Jeanie Borlaug Laube Women in Triticum (WIT) Early Career Award. The award offers professional development opportunities for women working in wheat.   “Collectively, these scientists are emerging as leaders across the wheat community,” said Maricelis Acevedo, Associate Director for Science for Cornell University’s Delivering Genetic Gain in Wheat Project, who announced Rivera’s award.

CGIAR Research Program on Wheat and Global Wheat Program Director Hans Braun also took the opportunity to honor and thank three departing CIMMYT wheat scientists. Alexey Morgounov, Carlos Guzman and Mohammad Reza Jalal Kamali received Yaquis, or statues of a Yaqui Indian. The figure of the Yaqui Indian is a Sonoran symbol of beauty and the gifts of the natural world, and the highest recognition given by the Global Wheat Program.

The overarching thread that ran though the Visitor’s Week was that all were in attendance because of their desire to benefit the greater good through wheat science. As retired INIFAP director and Global Wheat Program Yaqui awardee Antonio Gándara said, recalling his parents’ guiding words, “Siempre, si puedes, hacer algo por los demas,  porque es la mejor forma de hacer algo por ti. [Always, if you can, do something for others, because it’s the best way to do something for yourself].”

Participants in the Field Day 2019 at the experimental station in Obregón stand for a group photo. (Photo: Ernesto Blancarte)
Participants in the Field Day 2019 at the experimental station in Obregón stand for a group photo. (Photo: Ernesto Blancarte)

Innovative irrigation promises “more crop per drop” for India’s water-stressed cereals

A pioneering study demonstrates how rice and wheat can be grown using 40 percent less water, through an innovative combination of existing irrigation and cropping techniques. (Photo: Naveen Gupta/CIMMYT)
A pioneering study demonstrates how rice and wheat can be grown using 40 percent less water, through an innovative combination of existing irrigation and cropping techniques. (Photo: Naveen Gupta/CIMMYT)

On World Water day, researchers show how India’s farmers can beat water shortages and grow rice and wheat with 40 percent less water

India’s northwest region is the most important production area for two staple cereals: rice and wheat. But a growing population and demand for food, inefficient flood-based irrigation, and climate change are putting enormous stress on the region’s groundwater supplies. Science has now confronted this challenge: a “breakthrough” study demonstrates how rice and wheat can be grown using 40 percent less water, through an innovative combination of existing irrigation and cropping techniques. The study’s authors, from the International Maize and Wheat Improvement Center (CIMMYT), the Borlaug Institute for South Asia (BISA), Punjab Agricultural University and Thapar University, claim farmers can grow similar or better yields than conventional growing methods, and still make a profit.

The researchers tested a range of existing solutions to determine the optimal mix of approaches that will help farmers save water and money. They found that rice and wheat grown using a “sub-surface drip fertigation system” combined with conservation agriculture approaches used at least 40 percent less water and needed 20 percent less Nitrogen-based fertilizer, for the same amount of yields under flood irrigation, and still be cost-effective for farmers. Sub-surface drip fertigation systems involve belowground pipes that deliver precise doses of water and fertilizer directly to the plant’s root zone, avoiding evaporation from the soil. The proposed system can work for both rice and wheat crops without the need to adjust pipes between rotations, saving money and labor. But a transition to more efficient approaches will require new policies and incentives, say the authors.

During the study, researchers used a sub-surface drip fertigation system, combined with conservation agriculture approaches, on wheat fields. (Photo: Naveen Gupta/CIMMYT)
During the study, researchers used a sub-surface drip fertigation system, combined with conservation agriculture approaches, on wheat fields. (Photo: Naveen Gupta/CIMMYT)

Read the full story:

Innovative irrigation system could future-proof India’s major cereals. Thomsom Reuters Foundation News, 20 March 2019.

Read the study:

Sidhu HS, Jat ML, Singh Y, Sidhu RK, Gupta N, Singh P, Singh P, Jat HS, Gerard B. 2019. Sub-surface drip fertigation with conservation agriculture in a rice-wheat system: A breakthrough for addressing water and nitrogen use efficiency. Agricultural Water Management. 216:1 (273-283). https://doi.org/10.1016/j.agwat.2019.02.019

The study received funding from the CGIAR Research Program on Wheat (WHEAT), the Indian Council of Agricultural Research (ICAR) and the Government of Punjab. The authors acknowledge the contributions of the field staff at BISA and CIMMYT based at Ludhiana, Punjab state.