Palmira (Colombia), February 14, 2019 — AGROSAVIA, Colombia’s leading not-for-profit organization for agricultural research and technology transfer, the International Center for Tropical Agriculture (CIAT) and the International Maize and Wheat Improvement Center (CIMMYT) have signed a five-year agreement that aims to boost maize production.
The new project will develop maize varieties adapted to the country’s farming conditions, and will promote sustainable intensification technologies and practices among Colombian farmers.
“We should be able to release the first high-yielding maize variety for Colombia in three years”, said Bram Govaerts, CIMMYT’s director of Innovative Business Strategies and regional representative for the Americas.
To achieve this goal, CIMMYT will provide AGROSAVIA’s breeding program with two thousand advanced lines, developed by combining native maize from Colombia with conventionally improved varieties.
“At both institutions we believe that Colombia can increase production to close the big gap between domestic maize consumption and imports”, said AGROSAVIA’s Executive Director, Juan Lucas Restrepo. “With this agreement, we will have more powerful local capacities and once again a Colombian maize research program for Colombians”.
Although experts agree that Colombian farmers could potentially produce more than 10 tons per hectare, the country’s average yield is currently 3.6 tons per hectare.
“With this agreement, the sister CGIAR centers CIMMYT and CIAT give a first step in the implementation of Maize for Colombia, an ambitious plan that will sustainably increase Colombia’s maize output by building on the learnings and achievements of a successful project implemented in Mexico called MasAgro,” said Govaerts.
Colombia’s Minister of Agriculture and Rural Development, Andrés Valencia, CIAT’s Director General, Rubén Echeverría, Juan Lucas Restrepo, and Bram Govaerts participated in the launch ceremony for the new agreement, which was signed at CIAT’s headquarters.
INTERVIEW OPPORTUNITIES:
Bram Govaerts, Director of Innovative Business Strategies and Regional Representative for the Americas, CIMMYT
International scientists are working with regional and national partners in sub-Saharan Africa to catalyze local wheat farming and help meet the rapidly rising regional demand for this crop.
The specialists are focusing on smallholder farmers in Rwanda and Zambia, offering them technical and institutional support, better links to markets, and the sharing of successful practices across regions and borders, as part of the project “Enhancing smallholder wheat productivity through sustainable intensification of wheat-based farming systems in Rwanda and Zambia.”
“Work started in 2016 and has included varietal selection, seed multiplication, and sharing of high-yielding, locally adapted, disease-resistant wheat varieties,” said Moti Jaleta, a socioeconomist at the International Maize and Wheat Improvement Center (CIMMYT) who leads the project. “Our knowledge and successes in smallholder wheat production and marketing will also be applicable in Madagascar, Mozambique, and Tanzania.”
Harvesting wheat at Gataraga, Northern Province, Rwanda.
Maize is by far the number-one food crop in sub-Saharan Africa but wheat consumption is increasing fast, driven in part by rapid urbanization and life-style changes. The region annually imports more than 15 million tons of wheat grain, worth some US$ 3.6 billion at current prices. Only Ethiopia, Kenya, and South Africa grow significant amounts of wheat and they are still net importers of the grain.
“Growing more wheat where it makes sense to do so can help safeguard food security for people who prefer wheat and reduce dependence on risky wheat grain markets,” Jaleta explained. “We’re working in areas where there’s biophysical potential for the crop in rain-fed farming, to increase domestic wheat production and productivity through use of improved varieties and cropping practices.”
In addition to the above, participants are supporting the region’s wheat production in diverse ways:
Recommendations to fine-tune smallholder wheat value chains and better serve diverse farmers.
Testing of yield-enhancing farming practices, such as bed-and-furrow systems that facilitate efficient sowing and better weed control.
Testing and promotion of small-scale mechanization, such as power tillers, to save labor and improve sowing and crop establishment.
Exploring use of hand-held light sensors to precisely calibrate nitrogen fertilizer dosages throughout the cropping season.
Innocent Habarurema, wheat breeder in the Rwanda Agriculture and Animal Resources Development Board (RAB), cited recent successes in the release of improved, disease resistant wheat varieties, as well as engaging smallholder farmers in seed multiplication and marketing to improve their access to quality seed of those varieties.
“The main challenge in wheat production is the short window of time between wheat seasons, which doesn’t allow complete drying of harvested plants for proper threshing,” Habarurema explained. “Suitable machinery to dry and thresh the wheat would remove the drudgery of hand threshing and improve the quality of the grain, so that it fetches better prices in markets.”
Millers, like this one in Rwanda, play a key role in wheat value chains.
Critical wheat diseases in Zambia include spot blotch, a leaf disease caused by the fungus Cochliobolus sativus, and head blight caused by Fusarium spp., which can leave carcinogenic toxins in the grain, according to Batiseba Tembo, wheat breeder at the Zambian Agricultural Research Institute (ZARI).
“Developing and disseminating varieties resistant to these diseases is a priority in the wheat breeding program at Mt. Makulu Agricultural Research Center,” said Tembo. “We’re also promoting appropriate mechanization for smallholder farmers, to improve wheat production and reduce the enormous drudgery of preparing the soil with hand hoes.”
Participants in the project, which runs to 2020, met at Musanze, in Rwanda’s Northern Province, during February 5-7 to review progress and plan remaining activities, which include more widespread sharing of seed, improved practices, and other useful outcomes.
“There was interest in trying smallholder winter wheat production under irrigation in Zambia to reduce the disease effects normally experienced in rainfed cropping,” said Jaleta, adding that the costs and benefits of irrigation, which is rarely used in the region, need to be assessed.
Project participants may also include in selection trials wheat varieties that have been bred to contain enhanced grain levels of zinc, a key micronutrient missing in the diets of many rural Africa households.
“The project will also push for the fast-track release and seed multiplication of the best varieties, to get them into farmers’ hands as quickly as possible,” Jaleta said.
In addition to CIMMYT, RAB, and ZARI, implementing partners include the Center for Coordination of Agricultural Research and Development for Southern Africa (CCARDESA). Generous funding for the work comes from the International Fund for Agricultural Development (IFAD) and the CGIAR Research Program on Wheat.
The CGIAR Excellence in Breeding Platform (EiB) is looking to provide matching funding (up to US$ 35,000) for two projects with AbacusBio to characterize the users of new crop varieties and identify a value-weighted set of traits to be included as breeding targets in a product profile system.
The winning CGIAR crop breeding program will work directly with AbacusBio with EiB support to deliver on the projects.
This project represents an opportunity for CGIAR members of EiB to take a leap forward in the definition of client-focused variety replacement.
For more details on the project and how to apply, please refer to this page and the project proposal. Applications will be received January through February.
How to scale? This question frequently comes up as projects look to expand and replicate results. In order to sustain enduring impacts for projects after their lifetime, agricultural programs are turning to scaling strategies. These strategies look beyond the numbers that are reached within a project and include sustainability and transformation beyond the project context. Methods and tools exist that help anticipate realistic and responsible scaling pathways.
The Scaling team at the International Maize and Wheat Improvement Center (CIMMYT), led by Lennart Woltering, drives the initiative to incorporate scaling principles into existing and developing projects to maximize impact.
Maria Boa recently joined the team as Scaling Coordinator. Last year Boa and Woltering participated in regional meetings on scaling in Morocco, Tunisia and Vietnam, which highlighted the need for better dissemination of information on how to approach scaling, in addition to its benefits.
Participants of the Tunisia workshop collaborate on a group exercise.
According to Boa, one of the key messages highlighted throughout these events was that in order for scaling to take hold and be integrated into projects, “…there needs to be a shift in mindset to accept that change is complex and that most projects only address a fraction of the problem.” This is essential in using scaling to effectively support long-term results.
At a workshop in Tunisia organized by ICARDA, IFAD and CIMMYT in November 2018, many participants expressed interest in scaling strategy tools, but were puzzled on how to integrate them into their specific projects. Many determined that they were stuck developing scaling strategies in an outdated framework, or one that strictly focused on using technological innovations. One participant admitted that she was skeptical of scaling perspectives because many did not lie in her field of expertise.
The November 2018 CCAFS SEA Conference on Scaling in Vietnam provided a platform for the sharing and learning of experiences in the scaling world. Some of the key messages from the event included the importance of scaling agricultural innovations taking place in complex systems of agricultural transformation, and the necessity of joint cooperation from all involved stakeholders and their openness to taking on challenges as a way to support sustainable system change.
According to Boa, scaling is a process that heavily relies on strategic collaboration for lasting impact. “Projects often don’t take into account how they’re a part of a larger chain of potential change,” she says.
Already recognized as a sustainable leader within scaling, CIMMYT is looking to strengthen scaling efforts in order to foster a more enduring impact within CIMMYT projects and beyond.
Lennart Woltering presents at the CCAFS SEA Conference in Vietnam.
Currently, the Scaling team at CIMMYT is conducting research on the “science of scaling” as it continues to function as a “help desk,” providing support integrating scaling principles in proposals and projects. Its primary role is to consider a project’s scaling needs and guide the development of an informed strategy to leverage efforts and resources. Boa hopes that by integrating responsible scaling approaches early on, projects can better balance the trade-offs associated with change.
Success in scaling is measured by a project’s enduring impact. However, stakeholders need more experience and capacity to see programs through to their end and be willing to monitor them beyond that lifespan. CIMMYT is developing and collecting the tools to support stakeholders with these specific capacities.
Developing a scaling strategy can also bring additional benefits: a discussion about scaling opens the door for raising awareness and fostering actions among different stakeholders towards system change and sustainable impact.
The community of the International Maize and Wheat Improvement Center (CIMMYT) joins former colleagues of John A. Mihm, CIMMYT’s maize entomologist during the 1970s-90s, in honoring his memory and valuable work. John passed away on January 25, 2019, at the age of 72.
Special maize populations developed by Mihm and his CIMMYT contemporaries are critical in today’s global quest for new maize varieties to resist the fall armyworm (Spodoptera frugiperda), according to B.M. Prasanna, director of the CIMMYT Global Maize Program and the CGIAR Research Program on Maize.
“The insect-resistant maize germplasm developed by Mihm is proving an invaluable resource in our fight against this pest, underpinning progress in the development of resistant varieties,” said Prasanna.
Crop entomologists were laboriously placing young insect larvae onto plants in greenhouses and in the field until 1976, when Mihm developed the “bazooka.” A plastic tube with a valve that quickly and easily delivered a uniform mixture of corn grits and insect larvae into individual maize plants, the innovation allowed researchers to infest hundreds of plants in a single morning.
Originally from the Americas, fall armyworm has caused major damage to maize crops in Africa since 2016. The pest is now spreading rapidly in Asia, with incidence on maize crops confirmed in India, Bangladesh, Sri Lanka, Myanmar, Thailand, and southern China.
“Without proper controls, fall armyworm could reduce maize grain harvests in Africa alone by an amount worth as much as US$4.6 billion,” Prasanna explained, citing a 2018 report from the Centre for Agriculture and Biosciences International (CABI).
With support from UNDP, Mihm greatly refined CIMMYT practices to rear larvae of maize insect pests and to apply them efficiently so that researchers could identify resistant plants and use them to breed elite, resilient varieties.
After leaving CIMMYT in 1994, Mihm worked for the U.S. company “French Agricultural Research” in studies on sources of resistance in maize to corn rootworm (Diabrotica spp). He eventually retired happily to his farm in Minnesota, according to Florentino Amasende, a former CIMMYT field assistant who was a close friend and colleague of Mihm.
“John was a friend, a mentor and even a father figure for me,” said Amasende, who with support from Mihm for his university studies rose to seed production specialist in leading seed companies. “My family and I are eternally grateful for the opportunities he gave me.”
Nominations are now open for the 2019 MAIZE Youth Innovators Awards – Africa! These awards are part of the efforts that the CGIAR Research Program on Maize (MAIZE) is undertaking to promote youth participation in maize-based agri-food systems. These awards recognize the contributions of young women and men below 35 years of age who are implementing innovations in African maize-based agri-food systems, including research for development, seed systems, agribusiness, and sustainable intensification.
Young people are the key to ensuring a food-secure future and agricultural sustainability. However, rural youth face many challenges related to unemployment, underemployment and poverty. According to the Food and Agriculture Organization (FAO) of the United Nations, facilitating young people’s participation in agriculture has the potential to drive widespread rural poverty reduction among young people and adults alike. In Africa, where over 300 million smallholder-farming families grow and consume maize as a staple crop, the human population stands at 1.2 billion people, 60 percent of whom are below the age of 25.
The MAIZE Youth Innovators Awards aim to identify young innovators who can serve to inspire other young people to get involved in maize-based agri-food systems. Part of the vision is to create a global network of young innovators in maize-based systems from around the world.
Award recipients will be invited to attend the annual Stress Tolerant Maize for Africa (STMA) project meeting in Lusaka, Zambia, from May 7 to May 9, where they will receive their awards and will be given the opportunity to present their work. The project meeting and award ceremony will also allow these young innovators to network and exchange experiences with MAIZE researchers and partners. Award recipients may also get the opportunity to collaborate with MAIZE and its partner scientists in Africa on implementing or furthering their innovations.
MAIZE invites young innovators to apply and CGIAR researchers and partners to nominate eligible applicants for any of the following three categories:
Researcher: Maize research for development (in any discipline)
Farmer: Maize farming systems in Africa
Change agent: Maize value chains (i.e., extension agents, input and service suppliers, transformation agents, etc.)
We ask nominators/applicants to take into account the following criteria and related questions:
Novelty and innovative spirit: To which specific novel findings or innovation(s) has this young person contributed? (in any of the three categories mentioned above)
Present or potential impact: What is the present or potential benefit or impact of the innovation(s) in maize-based agri-food systems?
Applications should be submitted online through this form by March 15, 2019.
Key dates:
Opening date for nominations: January 21, 2019
Closing date for nominations: March 15, 2019 (Please note: Nominations received after the closing date will not be considered)
Notification of winners: March 22, 2019
Information documents:
A PDF version of this Call for Nominees is available here.
Nomination/Application Guidelines can be found here.
The Application Form can be found here and is also available on the MAIZE and YPARD websites.
A baker makes the traditional wheat flatbread known as “naan roti” in Dinajpur, Bangladesh. (Photo: S. Mojumder/Drik/CIMMYT)
The developing world’s appetite for wheat is growing swiftly, driven in part by rising incomes, rapid urbanization and the expansion of families where both spouses work outside the house, according to a recent seminar by two international experts.
“Our research is picking up significant shifts in demand among cereals, including the increasing popularity of wheat in Asia and sub-Saharan Africa,” said Khondoker Mottaleb, socioeconomist for the International Maize and Wheat Improvement Center (CIMMYT), speaking at a seminar at the center on December 11, 2018.
In preliminary results of a study using household data from six countries in Asia and five in sub-Saharan Africa, Mottaleb and his associate, Fazleen Binti Abdul Fatah, senior lecturer at the University of Technology MARA, Malaysia, found that the households of both regions will eat more wheat by 2030, mainly in place of rice in Asia and of maize and other coarse grain cereals in Africa.
Speedy urbanization, higher incomes, population growth, and allied lifestyle changes are all driving this trend, said Fazleen. “Many urban women are working, so families are transitioning to bread and other convenient wheat-based foods and processed foods.”
A typical case according to Mottaleb is that of Bangladesh, a country whose population at 160 million is half that of the United States but with a geographical area equivalent to the US state of Ohio. The per capita GDP of Bangladesh grew from US$360 to US$1,516 during 2000-2017, and more than 35 percent of the country’s inhabitants now live in cities.
Meeting demand for wheat in Bangladesh
A 2018 paper by Mottaleb and fellow CIMMYT researchers shows that wheat consumption will increase substantially in Bangladesh by 2030 and the country needs to expand production or increase imports to meet the growing demand.
“The country purchases nearly 70 percent of its wheat at an annual cost near or exceeding US$1 billion, depending on yearly prices,” said Mottaleb. “Wheat prices are relatively low and wheat markets have been relatively stable, but if yields of a major wheat exporting country suddenly fall, say, from pest attacks or a drought, wheat markets would destabilize and prices would spike, as occurred in 2008 and 2011.”
In a 2018 study, the United Kingdom’s Agriculture and Horticulture Development Board (AHDB) cautioned that declining wheat cropping area worldwide and significant stockpiling by China — which holds nearly half the world’s wheat stocks but does not export any grain — were masking serious risk in global wheat markets.
A recent report ranked Bangladesh as the world’s fifth largest wheat importer. Since 2014-15 domestic wheat consumption there has increased by 57 percent from 4.9 million metric ton to 7.7 million metric tons. Last December, the Food and Agriculture Organization (FAO) of the United Nations forecast Bangladesh wheat import requirements of 6 million tons for this year — 34 percent above the previous five-year average following steady increases since 2012-13.
“The prevailing narrative has wealthier and more urban consumers shifting from basic foods to higher value foods, and this is doubtless occurring,” said Fazleen, “but our work shows a more nuanced scenario. In the traditional rice consuming economies in Asia, rural households are also eating more wheat, due to rapid dietary transformations.”
For Bangladesh, the researchers propose growing additional wheat on fallow and less-intensively-cropped land, as well as expanding the use of newer, high-yielding and climate-smart wheat varieties.
“Our work clearly shows the rising popularity of wheat across Asia and Africa,” said Mottaleb. “We urge international development agencies and policymakers to enhance wheat production in suitable areas, ensuring food security for the burgeoning number of people who prefer wheat and reducing dependence on risky wheat grain markets.”
This story, part of a series on the international agricultural research projects of recipients of the Crawford Fund’s International Agricultural Student Award, was originally posted on the Crawford Fund blog.
Researcher Tamaya Peressini performs disease evaluations 10 days post infection at CIMMYT’s glasshouse facilities.
In 2018, Tamaya Peressini, from the Queensland Alliance for Agriculture and Food Innovation (QAAFI), a research institute of the University of Queensland (UQ), travelled to CIMMYT in Mexico as part of her Honours thesis research, focused on a disease called tan spot in wheat.
Tan spot is caused by the pathogen Pyrenophora triciti-repentis (Ptr) and her project aimed to evaluate the resistance of tan spot in wheat to global races to this pathogen.
“The germplasm I’m studying for my thesis carries what is known as adult plant resistance (or APR) to tan spot, which has demonstrated to be a durable source of resistance in other wheat pathosystems such as powdery mildew,” Peressini said.
Symptoms of tan spot on wheat plants.
Tan spot is prevalent worldwide, and in Australia causes the most yield loss out of the foliar wheat diseases. In Australia, there is only one identified pathogen race that is prevalent, called Ptr Race 1. For Ptr Race 1, the susceptibility gene Tsn1 in wheat is the main factor that results in successful infection in Ptr strains that carry Toxin A. However, globally it is a more difficult problem, as there are seven other pathogen races that consist of different combinations of necrotrophic toxins. Hence, developing cultivars that are multi-race resistant to Ptr presents a significant challenge to breeders, as multiple resistant genes would be required for resistance to other pathogens.
“At CIMMYT, I evaluated the durability of APR I identified in plant material in Australia by inoculating with a local strain of Ptr and also with a pathogen that shares ToxA: Staganospora nodorum,” Peressini explained.
“The benefit of studying this at CIMMYT was that I had access to different strains of the pathogen which carry different virulence factors of disease, I was exposed to international agricultural research and, importantly, I was able to create research collaborations that would allow the APR detected in this population to have the potential to reach developing countries to assist in developing durably resistant wheat cultivars for worldwide deployment.”
Recent work in Dr Lee Hickey’s laboratory in Queensland has identified several landraces from the Vavilov wheat collection that exhibited a novel resistance to tan spot known as adult plant resistance (APR). APR has proven to be a durable and broad-spectrum source of resistance in wheat crops, namely with the Lr34 gene which confers resistance to powdery mildew and leaf stem rust of wheat.
“My research is focused on evaluating this type of resistance and identifying whether it is resistant to multiple pathogen species and other races of Ptr. This is important to the Queensland region, as the northern wheat belt is significantly affected by tan spot disease. Introducing durable resistance genes to varieties in this region would be an effective pre-breeding strategy because it would help develop crop varieties that would have enhanced resistance to tan spot should more strains reach Australia. Furthermore, it may provide durable resistance to other necrotrophic pathogens of wheat,” Peressini said.
The plant material Peressini studied in her honors thesis was a recombinant inbred line (RIL) population, with the parental lines being the APR landrace — carries Tsn1 — and the susceptible Australian cultivar Banks — also carries Tsn1. To evaluate the durability of resistance in this population to other strains of Ptr, this material along with the parental lines of the population and additional land races from the Vavilov wheat collection were sent to CIMMYT for Tamaya to perform a disease assay.
“At CIMMYT I evaluated the durability of APR identified in plant material in Australia by inoculating with a local strain of Ptr and also with a pathogen that shares ToxA: Staganospora nodorum. After infection, my plant material was kept in 100 per cent humidity for 24 hours (12 hours light and 12 hours dark) and then transferred back to regular glasshouse conditions. At 10 days post infection I evaluated the resistance in the plant material.”
From the evaluation, the APR RIL line demonstrated significant resistance compared to the rest of the Australian plant material against both pathogens. The results are highly promising, as they demonstrate the durability of the APR for both pre-breeding and multi-pathogen resistance breeding. Furthermore, this plant material is now available for experimental purposes at CIMMYT, where further trials can validate how durable the resistance is to other necrotrophic pathogens and also be deployed worldwide and be tested against even more strains of Ptr.
“During my visit at CIMMYT I was able to immerse myself in the Spanish language and take part in professional seminars, tours, lab work and field work around the site. A highlight for me was learning to prepare and perform toxin infiltrations for an experiment comparing the virulence of different strains of spot blotch,” Peressini said.
During her stay in Mexico, Peressini had a chance to visit the pyramids of Teotihuacán and other cultural landmarks.
“I also formed valuable friendships and research partnerships from every corner of the globe and had valuable exposure to the important research underway at CIMMT and insight to the issues that are affecting maize and wheat growers globally. Of course, there was also the chance to travel on weekends, where I was able to experience the lively Mexican culture and historical sites – another fantastic highlight to the trip!”
“I would like to thank CIMMYT and Dr Pawan Singh for hosting me and giving the opportunity to learn, grow and experience the fantastic research that is performed at CIMMYT and opportunities to experience parts of Mexico. The researchers and lab technicians were all so friendly and accommodating. I would also like to thank my supervisor Dr Lee Hickey for introducing this project collaboration with CIMMYT. Lastly, I would like to thank the Crawford Fund Queensland Committee for funding this visit; not only was I able to immerse myself in world class plant pathology research, I have been given valuable exposure to international agricultural research that will give my research career a boost in the right direction,” Peressini concluded.
“Crop modelling has the potential to significantly contribute to global food and nutrition security,” claim the authors of a recently published paper on the role of modelling in international crop research. “Millions of farmers, and the societies that depend on their production, are relying on us to step up to the plate.”
Among other uses, crop modelling allows for foresight analysis of agricultural systems under global change scenarios and the prediction of potential consequences of food system shocks. New technologies and conceptual breakthroughs have also allowed modelling to contribute to a better understanding of crop performance and yield gaps, improved predictions of pest outbreaks, more efficient irrigation systems and the optimization of planting dates.
While renewed interest in the topic has led in recent years to the development of collaborative initiatives such as the Agricultural Model Intercomparison and Improvement Project (AgMIP) and the CGIAR Platform for Big Data in Agriculture, further investment is needed in order to improve the collection of open access, easy-to-use data available for crop modelling purposes. Strong impact on a global scale will require a wide range of stakeholders – from academia to the private sector – to contribute to the development of large, multi-location datasets.
Resource-poor farmers worldwide stand to gain from developments in the field of crop modelling. (Photo: H. De Groote/CIMMYT)
In “Role of Modelling in International Crop Research: Overview and Some Case Studies,” CGIAR researchers outline the history and basic principles of crop modelling, and describe major theoretical advances and their practical applications by international crop research centers. They also highlight the importance of agri-food systems, which they view as key to meeting global development challenges. “The renewed focus on the systems-level has created significant opportunities for modelers to participant in enhancing the impact of science on developments. However, a coherent approach based on principles of transparency, cooperation and innovation is essential to achieving this.”
The authors call for closer interdisciplinary collaboration to better serve the crop research and development communities through the provision of model-based recommendations which could range from government-level policy development to direct crop management support for resource-poor farmers.
Face of an adult male Phidippus audax male jumping spider. (Photo: Opoterser/Wikimedia Commons)
A new study explores how conservation agriculture in southern Africa supports spider populations and diversity in fields, which could help mitigate pest damage and potentially lead to higher yields for farmers. According to the Food and Agriculture Organization of the United Nations (FAO), herbivorous insects such as aphids, caterpillars and weevils destroy about one fifth of the world’s total crop production each year. Spiders can help keep voracious pests in-check, but conventional farming practices (e.g. tilling, crop residue removal and monoculture) can harm or drastically reduce these beneficial bio-control agents.
There are more than 45,000 identified spider species around the world. From glaciers to tropical rainforests, they inhabit every terrestrial ecosystem on earth. Some can even live in tidal zones, and at least one species inhabits fresh water. While we tend to associate spiders with webs, only about 50 percent of the species catch their prey this way; the rest hunt on plants, on the ground or below it, using a variety of tactics such as stalking, stabbing, crushing – even seduction.
Although spiders have been around for 300 million years, some species are at risk of extinction due to habitat loss and fragmentation. Drastic reductions in vegetation – whether from a new parking lot or a tilled field – removes the food source that attracts their prey. Bare ground exposes their nesting sites and themselves, which makes it harder to hunt and easier to be hunted by birds and small mammals.
At the Chinhoyi University of Technology experimental farm in Zimbabwe, a team of researchers aimed to determine the response of spiders under different agricultural practices. Conventional farmers often prepare their fields for planting by physically breaking up and inverting the top 6-10 inches of soil. This practice of ploughing prepares a fine soil tilth, which makes it easier to plant; it breaks up and buries weeds, and reduces soil compaction to aerate the soil. But tilling also increases topsoil erosion from wind and water. It accelerates soil carbon decomposition, reduces soil water infiltration and disrupts microorganisms living in the soil, including beneficial insects and spiders.
The researchers conducted two experiments over the 2013/2014 and 2014/2015 cropping seasons to see how tilling, crop residue retention (i.e. leaving stalks and post-harvest organic matter in the field), fertilizer application and weeding affected ground- and plant-wandering spider species. They hypothesized that spider abundance and diversity would increase with lower levels of soil disturbance and more plant cover.
The results showed direct seeding into no-till soil increased the abundance of spiders and the diversity of species. Mulching also showed a positive effect. Contrary to their hypotheses and results from temperate regions, the application of fertilizer and intense weeding did not affect the spider community. The researchers attributed this to the difference in climatic conditions (tropical vs. temperate) of this study in southern Africa.
“Often the government’s and farmer’s immediate reaction to a crop pest issue is to apply a pesticide, but we can make use of biological control agents, which may be cheaper and less damaging for the environment,” says Christian Thierfelder, a co-author of the study. Thierfelder is a cropping systems agronomist and conservation agriculture specialist with the International Maize and Wheat Improvement Center (CIMMYT) with long-term experience in sustainable intensification.
“Spiders, ants and beetles all do a really good job with little or no cost to the farmer,” he adds. “For us, it’s quite fascinating to see simple agronomic practices to affect and control crop pests. This also provides new avenues of dealing with the fall armyworm, an invasive species which has devastated crops across the majority of sub-Saharan Africa countries.”
A robust number of studies from Europe, Australia and North America have shown the link between conservation agriculture and biodiversity, but Thierfelder says that research on biodiversity in agronomic systems is relatively new in southern Africa. While the study in Zimbabwe helps fill this gap, more research is needed to show the connection between the abundance of spiders, beetles and ants with the suppression of insect pest activity.
This research was jointly funded by Chinhoyi University of Technology (CUT) and the German Academic Exchange Program (DAAD). The CGIAR Research Program on Maize (MAIZE) supported this study through Christian Thierfelder’s contributions.
Farmer Gudeye Leta harvests his local variety maize in Dalecho village, Gudeya Bila district, Ethiopia. (Photo: Peter Lowe/CIMMYT)
Ethiopia is Africa’s third largest producer of maize, after Nigeria and South Africa. Although the country produces around 6.5 million tons annually, the national average maize yield is relatively low at 3.5 tons compared to the attainable yield of 8.5 tons. This high yield gap — the difference between attainable and actual yields — can be attributed to a number of factors, including crop varieties used, farm management practices, and plant density.
The Taking Maize Agronomy to Scale (TAMASA) project aims to narrow maize yield gaps in Ethiopia, Nigeria and Tanzania through the development and scaling out of decision-support tools, which provide site-specific recommendations based on information held in crop and soil databases collected from each country. These help farmers to make decisions based on more accurate variety and fertilizer recommendations, and can contribute to improving maize production and productivity.
One such tool is Nutrient Expert, a free, interactive computer-based application. It can rapidly provide nutrient recommendations for individual farmers’ fields in the absence of soil-testing data. The tool was developed by the International Plant Nutrition Institute in collaboration with the International Maize and Wheat Improvement Center (CIMMYT), the International Institute of Tropical Agriculture (IITA), and research and extension service providers.
Nutrient Expert user interface.
In Ethiopia, regional fertilizer recommendations are widely used, but soil fertility management practices can vary greatly from village to village and even between individual farmers. This can make it difficult for farmers or extension agents to receive accurate information tailored specifically to their needs. Nutrient Expert fills this gap by incorporating information on available fertilizer blends and giving customized recommendations for individual fields or larger areas, using information on current farmer practices, field history and local conditions. It can also provide advice on improved crop management practices such as planting density and weeding, thereby helping farmers to maximize net returns on their investment in fertilizer.
Data calibration was based on the results of 700 multi-location nutrient omission trials conducted in major maize production areas in Ethiopia, Nigeria and Tanzania. These trials were designed as a diagnostic tool to establish which macro-nutrients are limiting maize growth and yield, and determine other possible constraints.
In Ethiopia, CIMMYT scientists working for the TAMASA project conducted nutrient omission trials on 88 farmer fields in Jimma, Bako and the Central Rift Valley in 2015 to produce a version of Nutrient Expert suitable for the country. Researchers trialed the app on six maize-belt districts in Oromia the following year, in which Nutrient Expert recommendations were compared with soil-test based and regional ones.
Researchers found that though the app recommended lower amounts of phosphorus and potassium fertilizer, overall maize yields were comparable to those in other test sites. In Ethiopia, this reduction in the use of NPK fertilizer resulted in an investment saving of roughly 80 dollars per hectare.
Results from Nutrient Expert trials in Ethiopia, Nigeria and Tanzania showed improved yields, fertilizer-use efficiency and increased profits, and the app has since been successfully adapted for use in developing fertilizer recommendations that address a wide variety of soil and climatic conditions in each of the target countries.
The World Bank’s 2016 Digital Dividends report states that we are currently “in the midst of the greatest information and communications revolution in human history.” This shifting digital landscape has significant implications for the ways in which stakeholders in the agricultural sector generate, access and use data. Amidst Africa’s burgeoning technology scene, CIMMYT’s TAMASA project demonstrates the transformative power of harnessing ICTs for agricultural development.
Learn more about different versions of Nutrient Expert and download the free software here.
TAMASA is a five-year project (2014-2019) funded by the Bill & Melinda Gates Foundation, seeking to improve productivity and profitability for small-scale maize farmers in Ethiopia, Nigeria and Tanzania. Read more about the project here.
A farmer in Ara district, Bihar state, applies NPK fertilizer, composed primarily of nitrogen, phosphorus and potassium. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
NEW DELHI (CIMMYT) — Imbalanced application of different plant nutrients through fertilizers is a widespread problem in India. The major reasons are lack of adequate knowledge among farmers about the nutritional requirement of crops, poor access to proper guidelines on the right use of plant nutrients, inadequate policy support through government regulations, and distorted and poorly targeted subsidies.
This context makes it necessary to foster innovation in the fertilizer industry, and also to find innovative ways to target farmers, provide extension services and communicate messages.
A dialogue on “Innovations for promoting balanced application of macro and micro nutrient fertilizers in Indian agriculture” facilitated discussion on this issue. Representatives from key fertilizer industries, state governments, research institutions and the Indian Council of Agricultural Research gathered in New Delhi, India, on December 12, 2018. This dialogue was part of the Cereal Systems Initiative for South Asia (CSISA) and was organized by the International Food Policy Research Institute (IFPRI) and the International Plant Nutrition Institute (IPNI).
CIMMYT scientist and CSISA project leader Andrew McDonald presents the new Soil Intelligence System for India, which employs innovative and rapid approaches to soil health assessments. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
The Director General of the Fertilizer Association of India (FAI), Shri Satish Chander, pointed out that new-product approvals in India take approximately 800 days. However, he explained, this delay is not the biggest problem facing the sector: other barriers include existing price controls that are highly contingent on political myths.
IFPRI researcher Avinash Kishore presented evidence contradicting the myth that farmers are highly sensitive to any price change. He presented data demonstrating that farmers’ demand for Urea and DAP remained highly price inelastic during periods of steep price increases, in 2011 and 2012.
Sheetal Sharma, soil scientist for nutrient management at IRRI, co-chaired a session on field evidences on the soil health card scheme and farmers incentives for change. (Photo: Dakshinamurthy Vedachalam/CIMMYT)
The Director of the South Asia Program at IPNI, T. Satyanarayana, highlighted the importance of micronutrients in promoting balanced fertilization of soils and innovative methods for determining soil health.
Andrew McDonald, from the International Maize and Wheat Improvement Center (CIMMYT), presented the new Soil Intelligence System for India, which employs innovative approaches to soil health assessments.
Farmers’ representative Ajay Vir Jakhar elaborated on the failure of underfunded extension systems to reach and disseminate relevant, factual and timely messages to vast numbers of farmers.
Other representatives from the fertilizer industry touched upon the need to identify farmer requirements for risk mitigation, labor shortages and site-specific nutrient management needs for custom fertilizer blends. Participants also discussed field evidence related to India’s soil health card scheme. Ultimately, discussions held at the roundtable helped identify relevant policy gaps, which will be summarized into a policy brief.
The Cereal Systems Initiative for South Asia project is led by the International Maize and Wheat Improvement Center (CIMMYT) in partnership with the International Rice Research Institute (IRRI) and the International Food Policy Research Institute (IFPRI). It is funded by the U.S. Agency for International Development (USAID) and the Bill & Melinda Gates Foundation.
Bangladesh farmer Raju Sarder sits on his recently acquired reaper. (Photo: iDE/Md. Ikram Hossain)
A man in his early 20s walked the winding roads of Sajiara village, Dumuria upazila, Khulna District in Bangladesh. His head hanging low, he noticed darkness slowly descending and then looked up to see an old farmer wrapping up his own daily activities. With traditional tools in hand, the farmer looked exhausted. The young man, Raju Sarder, considered that there had to be a better way to farm to alleviate his drudgery and that of others in the community.
Determined to act, Raju set out to meet Department of Agricultural Extension (DAE) officials the very next day. They informed him about the Mechanization and Irrigation project of the Cereal Systems Initiative for South Asia (CSISA MI). They also introduced him to the project’s most popular technologies, namely the power tiller operated seeder, reaper and axial flow pumps, all of which reduce labor costs and increase farming efficiency.
Raju found the reaper to be the most interesting and relevant for his work, and contacted a CSISA representative to acquire one.
The first challenge he encountered was the cost — the equivalent of $1,970 — which as a small-scale farmer he could not afford. CSISA MI field staff assured him that his ambitions were not nipped in the bud and guided him in obtaining a government subsidy and a loan of $1,070 from TMSS, one of CSISA MI’s micro financing partners. Following operator and maintenance training from CSISA MI, Raju began providing reaping services to local smallholder rice and wheat farmers.
He noticed immediately that he did not have to exert himself as much as before but actually gained time for leisure and his production costs dwindled. Most remarkably, for reaping 24 hectares Raju generated a profit of $1,806; a staggering 15 times greater than what he could obtain using traditional, manual methods and enough to pay back his loan in the first season.
“There was a time when I was unsure whether I would be able to afford my next meal,” said Raju, “but it’s all different now because profits are pouring in thanks to the reaper.”
As a result of the project and farmers’ interest, field labor in Raju’s community is also being transformed. Gone are the days when farmers toiled from dawn to dusk bending and squatting to cut the rice and wheat with rustic sickles. Laborious traditional methods are being replaced by modern and effective mechanization. Through projects such as CSISA MI, CIMMYT is helping farmers like Raju to become young entrepreneurs with a bright future. Once poor laborers disaffected and treated badly in their own society, these youths now walk with dignity and pride as significant contributors to local economic development.
The importance of maize in Asian cropping systems has grown rapidly in recent years, with several countries registering impressive growth rates in maize production and productivity. However, increasing and competing demands — food, feed, and industry — highlight the continued need to invest in maize research for development in the region. Maize experts from around the world gathered to discuss these challenges and how to solve them at the 13th Asian Maize Conference and Expert Consultation on Maize for Food, Feed, Nutrition and Environmental Security, held from October 8 to 10, 2018, in Ludhiana, Punjab, India.
More than 280 delegates from 20 countries attended the conference. Technical sessions and panel discussions covered diverse topics such as novel tools and strategies for increasing genetic gains, stress-resilient maize, sustainable intensification of maize-based cropping systems, specialty maize, processing and value addition, and nutritionally enriched maize for Asia.
The international conference was jointly organized by the Indian Council of Agricultural Research (ICAR), the International Maize and Wheat Improvement Center (CIMMYT), the Indian Institute of Maize Research (ICAR-IIMR), Punjab Agricultural University (PAU), the CGIAR Research Program on Maize (MAIZE), and the Borlaug Institute for South Asia (BISA).
In Asia, maize is rapidly growing in its importance, due to high demand. Maize productivity in the region is growing by 5.2 percent annually compared to a global average of 3.5 percent. However, this is not enough. “Asia produces nearly 80 million tons of maize annually, but demand will be double by the year 2050,” said Martin Kropff, CIMMYT director general, in his opening address at the conference. “We need to produce two times more maize in Asia, using two times less inputs, including water and nutrients. Climatic extremes and variability, especially in South and South East Asia, will make this challenge more difficult. Continued funding for maize research is crucial. We need to work together to ensure that appropriate innovations reach the smallholder farmers.”
Field visit in Ludhiana, India, during the 13th Asian Maize Conference. (Photo: Manjit Singh/Punjab Agricultural University)
Climate-resilient maize and sustainable intensification
A major theme emphasized at the conference was climate resilience in maize-based systems. South Asia is a hotspot for vulnerability due to climate change and climate variability, which poses great risks to smallholder farmers. “Climate resilience cannot be brought by only a single technology — it has to be through a judicious mix of several approaches,” said B.M. Prasanna, director of CIMMYT’s Global Maize Program and the CGIAR Research Program on Maize.
Great advances have been made in developing climate-resilient maize for Asia since the last Asian Maize Conference, held in 2014. Many new heat- and drought-tolerant maize varieties have been developed through various projects, such as the Heat Stress Tolerant Maize for Asia (HTMA), and Affordable, Accessible, Asian (AAA) maize projects. Through the HTMA project, over 50 CIMMYT-derived elite heat-tolerant maize hybrids have been licensed to public and private sector partners in Asia during the last three years, and nine heat-tolerant maize hybrids have been released so far in Bangladesh, India and Nepal.
Sustainable intensification of maize-based farming systems has also helped farmers to increase yields while reducing environmental impact, through conservation agriculture and scale-appropriate mechanization. Simple technologies are now available to reduce harvest time by up to 80 percent and hired labor costs by up to 60 percent. Researchers across the region are also working to strengthen the maize value chains.
B.S. Dhillon (center) receives the MAIZE Champion Award for his pioneering work in maize breeding. (Photo: Manjit Singh/Punjab Agricultural University)
Science and appropriate technologies
CIMMYT has been focusing on developing and deploying new technologies that can enhance the efficiency of maize breeding programs; these include doubled haploid (DH) technology, high-throughput field-based phenotyping, and genomics-assisted breeding. The conference emphasized on the need for Asian institutions to adapt such new tools and technologies in maize breeding programs.
Another topic of interest was the fall armyworm, an invasive insect pest that has spread through 44 countries in Africa and was recently reported in India for the first time. “This pest can migrate very quickly and doesn’t require visas and passports like we do. It will travel, and Asian nations need to be prepared,” Prasanna said. “However, there is no need for alarm. We will be looking at lessons learned from other regions and will work together to control this pest.”
In addition to grain for food and feed, specialty maize varieties can provide beneficial economic alternatives for smallholder maize farmers. Conference participants had the opportunity to hear from Indian farmers Kanwal Singh Chauhan and Yugandar Y, who have effectively adopted specialty maize varieties, such as baby corn, sweet corn and popcorn, into life-changing economic opportunities for farming communities. They hope to inspire other farmers in the region to do the same.
On October 10, conference delegates participated in a maize field day organized at the BISA farm in Ladhowal, Ludhiana. Nearly 100 improved maize varieties developed by CIMMYT, ICAR and public and private sector partners were on display, in addition to scale-appropriate mechanization options, decision support tools, and precision nutrient and water management techniques.
The conference concluded with a ceremony honoring the winners of the 2018 MAIZE-Asia Youth Innovators Award. The awards were launched in collaboration between the CGIAR Research Program on Maize and YPARD (Young Professionals for Agricultural Development) to recognize the contributions of innovative young women and men who can inspire fellow youth to get involved in improving maize-based agri-food systems in Asia. Winners of the first edition of the awards include Dinesh Panday of Nepal, Jie Xu of China, Samjhana Khanal of Nepal, and Vignesh Muthusamy of India.
Participants listen to a briefing during the field visit of the 13th Asian Maize Conference, in Ludhiana, India. (Photo: Manjit Singh/Punjab Agricultural University)
Munfiat, a farmer from Nowshera district, Khyber Pakhtunkhwa province, Pakistan, is happy to sow and share seed of the high-yielding, disease resistant Faisalabad-08 wheat variety. (Photo: CIMMYT/Ansaar Ahmad)
Nearly 3,000 smallholder wheat farmers throughout Pakistan will begin to sow seed of newer, high-yielding, disease-resistant wheat varieties and spread the seed among their peers in 2019, through a dynamic initiative that is revitalizing the contribution of science-based innovation for national agriculture.
Some 73 tons of seed of 15 improved wheat varieties recently went out to farmers in the provinces of Baluchistan, Gilgit Baltistan, Khyber Pakhtunkhwa, Punjab and Sindh, as part of the Agricultural Innovation Program (AIP), an initiative led by the International Maize and Wheat Improvement Center (CIMMYT) with funding from the US Agency for International Development (USAID).
“Our main goal is to help farmers replace outdated, disease-susceptible wheat varieties,” said Muhammad Imtiaz, CIMMYT scientist and country representative for Pakistan who leads the AIP. “Studies have shown that some Pakistan farmers grow the same variety for as long as 10 years, meaning they lose out on the superior qualities of newer varieties and their crops may fall victim to virulent, rapidly evolving wheat diseases.”
With support from CIMMYT and partners, participating farmers will not only enjoy as much as 20 percent higher harvests, but have agreed to produce and share surplus seed with neighbors, thus multiplying the new varieties’ reach and benefits, according to Imtiaz.
He said the new seed is part of AIP’s holistic focus on better cropping systems, including training farmers in improved management practices for wheat.
Wheat is Pakistan’s number-one food crop. Farmers there produce over 25 million tons of wheat each year — nearly as much as the entire annual wheat output of Africa or South America.
Annual per capita wheat consumption in Pakistan averages over 120 kilograms, among the highest in the world and providing over 60 percent of Pakistanis’ daily caloric intake.
The seed distributed includes varieties that offer enhanced levels of grain zinc content. The varieties were developed by CIMMYT in partnership with HarvestPlus, a CGIAR research program to study and deliver biofortified foods.
According to a 2011 nutrition survey, 39 percent of children in Pakistan and 48 percent of pregnant women suffer from zinc deficiency, leading to child stunting rates of more than 40 percent and high infant mortality.
The road to better food security and nutrition seems straighter for farmer Munsif Ullah and his family, with seed of a high-yielding, zinc-enhanced wheat variety. (Photo: CIMMYT/Ansaar Ahmad)
“I am very excited to be part of Zincol-16 seed distribution, because its rich ingredients of nutrition will have a good impact on the health of my family,” said Munsif Ullah, a farmer from Swabi District, Khyber Pakhtunkhwa province.
Other seed distributed includes that of the Pakistan-13 variety for rainfed areas of Punjab, Shahkar-13 for the mountainous Gilgit-Baltistan, Ehsan-16 for rainfed areas in general, and the Umeed-14 and Zardana varieties for Baluchistan.
All varieties feature improved resistance to wheat rust diseases caused by fungi whose strains are mutating and spreading quickly in South Asia.
CIMMYT and partners are training farmers in quality seed production and setting up demonstration plots in farmers’ fields to create awareness about new varieties and production technologies, as well as collecting data to monitor the varieties’ performance.
They are also promoting resource-conserving practices such as balanced applications of fertilizer based on infrared sensor readings, ridge planting, and zero tillage. These innovations can save water, fertilizer, and land preparation costs, not to mention increasing yields.
“CIMMYT’s main focus in Pakistan is work with national wheat researchers to develop and spread better wheat production systems,” Imtiaz explained. “This includes improved farming practices and wheat lines that offer higher yields, disease resistance, and resilience under higher temperatures and dry conditions, as well as good end-use quality.”
CIMMYT’s partners in AIP include the National Rural Support Program (NRSP), the Lok Sanjh Foundation, the Village Friends Organization (VFO), the Aga Khan Rural Support Program (AKRSP), the National Agricultural Research Council (NARC) Wheat Program, the Wheat Research Institute (WRI) Faisalabad and Sakrand centers, AZRI-Umarkot, Kashmala Agro Seed Company, ARI-Quetta, BARDC-Quetta, and Model Farm Services Center, KP.
Palmira (Colombia), February 14, 2019 — AGROSAVIA, Colombia’s leading not-for-profit organization for agricultural research and technology transfer, the International Center for Tropical Agriculture (CIAT) and the International Maize and Wheat Improvement Center (CIMMYT) have signed a five-year agreement that aims to boost maize production.
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