Blogs – Page 17

Big data for development research

Written by on October 27, 2015. Posted in Blogs.

Both private and public sector research organizations must adopt data management strategies that keep up with the advent of big data if we hope to effectively and accurately conduct research. CIMMYT and many other donor-dependent research organizations operate in fund declining environments, and need to make the most of available resources. Data management strategies based on the data lake concept are essential for improved research analysis and greater impact.

We create 2.5 quintillion bytes of data daily–so much that 90% of the data in the world today has been created in the last two years alone. This data comes from everywhere: sensors used to gather climate information, drones taking images of breeding trials, posts on social media sites, cell phone GPS signals, and more, along with traditional data sources such as surveys and field trial records. This data is big data, data characterized by volume, velocity, and variety.

Twentieth century data management strategies focused on ensuring data was made available in standard formats and structures in databases and/or data warehouses–a combination of many different databases across an entire enterprise. The major drawback of the data warehouse concept is the perception that it is too much trouble to put the data into the storage system with too little direct benefit, acting as a disincentive to corporate-level data repositories. The result is that within many organizations, including CIMMYT, not all data is accessible.

Today’s technology and processing tools, such as cloud computing and open-source software (for example, R and Hadoop), have enabled us to harness big data to answer questions that were previously out of reach. However, with this opportunity comes the challenge of developing alternatives to traditional database systems–big data is too big, too fast, or doesn’t fit the old structures.

One alternative storage and retrieval system that can handle big data is the data lake. A data lake is a store-everything approach to big data, and a massive, easily accessible, centralized repository of large volumes of structured and unstructured data.

Advocates of the data lake concept believe any and all data can be captured and stored in a data lake. It allows for more questions and better answers thanks to new IT technologies and ensures flexibility and agility.However, without metadata–data that describes the data we are collecting–and a mechanism to maintain it, data lakes can become data swamps where data is murky, unnavigable, has unknown origins, and is ultimately unreliable. Every subsequent use of data means scientists and researchers start from scratch. Metadata also allows extraction, transformation, and loading (ETL) processes to be developed that retrieve data from operational systems and process it for further analysis.

Metadata and well-defined ETL procedures are essential for a successful data lake. A data lake strategy with metadata and ETL procedures as its cornerstone is essential to maximize data use, re-use and to conduct accurate and impactful analyses.

Yield gap analysis key to meeting future crop demand

Written by on October 23, 2015. Posted in Blogs. 57 Comments on Yield gap analysis key to meeting future crop demand

Major crop yields are currently not increasing fast enough to meet demand on existing farmland. Ensuring food security while protecting rainforests, wetlands, and grasslands depends on achieving the highest possible yields with limited land, if we hope to feed a population of more than 9 billion people by 2050.

Crop productivity varies across the globe, depending on environment, inputs, and practices (Sadras et al., 2015). Calculating an area’s yield gap––the difference between irrigated or rainfed crops and actual yields––will allow us to estimate future yield increase and productivity gaps of crops and cropping systems.

The Global Yield Gap Atlas (GYGA) seeks to provide the best available estimates of yield gaps globally using current average farm yields and yield potential (Yp) for irrigated environments, or water-limited yield potential (Yw) for rainfed environments (Van Ittersum et al., 2013). GYGA has calculated yield gaps for major food crops in participating countries across agroecological zones.

Message from Borlaug-Ruan international intern Sweta Sudhir, Turkey, summer 2015

Written by on October 5, 2015. Posted in Blogs.

Sweta in the field in Konya, peeling wheat stems to score for crown rot symptoms. Photo: Gul Erginbas Orakci

As a small-town Iowa girl, I have grown up around farms my whole life but never quite grasped the complexity of the issue of food insecurity. Two years ago, my understanding of food insecurity could be summed up in an image of a barren desert in sub-Saharan Africa. Yet that January I embarked on a journey that would take me from my hometown in Iowa, to the state capital and, finally, to Eskişehir, Turkey.

This past summer I spent eight weeks in Turkey as part of the Borlaug-Ruan International Internship of the World Food Prize Organization. My deep thanks to Mr. Brad Horton, Lisa Fleming, and Ambassador Quinn for this opportunity. Working in the soilborne pathogen lab of CIMMYT-Turkey, I was introduced to the devastating impact of nematodes and fusarium on wheat yield. Reading journal articles before I came to Turkey, I simply saw numbers on a sheet of paper, but as I visited the field sites in Eskişehir, Yozgat, and Konya and as I conversed with my mentors Dr. Abdelfattah A. Dababat and Dr. Gül Erginbas-Orakci, I was able to see the devastation these pathogens cause on yield and the livelihood of farmers.

Why GM wheat may be the key to stave off world hunger

Written by on September 21, 2015. Posted in Blogs.

Sanjaya Rajaram is the 2014 World Food Prize laureate for scientific research that led to an increase in world wheat production by more than 200 million tons. Any views expressed are his own.

Unless global policymakers redouble their efforts to properly support a strategy to ensure a future food supply, the current hunger crisis threatens only to get worse.

A gathering of more than 500 scientists at the 2015 International Wheat Conference in Sydney, Australia, provides an opportunity to revisit these matters.

Already almost 800 million people worldwide – about one in nine people – are undernourished and do not get enough food to eat to lead a healthy active life, according to the U.N. Food and Agriculture Organization (FAO).

By 2050, the current global population of 7.3 billion is projected to grow 33 percent to almost 10 billion, according to the United Nations.

A recent report from the Taskforce on Extreme Weather and Global Food System Resilience projects that food demand, driven by population growth, demographic changes and increasing global wealth, will rise more than 60 percent.

The majority of hungry people live in developing countries where almost 14 percent of the population is undernourished, the FAO states in its 2015 “State of Food Insecurity in the World” report. The current refugee crisis in Europe provides dramatic evidence that wealthy countries must increase investments that will help promote food security and political stability in poor countries.

BOLSTERING FOOD SECURITY

Investments in agricultural science must be at the top of the list. Wheat currently provides 20 percent of calories and 20 percent of protein to the global human diet. In order to keep up with population growth, we must increase wheat production from the current annual 700 million metric tons a year to 1 billion. We also face the threat of climate change-related global warming.

Over the past 50 years, the 15-member CGIAR consortium of agricultural researchers – where I worked for most of my career with the International Maize and Wheat Improvement Center (CIMMYT) and the International Center for Agricultural Research in the Dry Areas (ICARDA) – have been helping smallholder farmers to increase crop yields and stave off devastating diseases.

To date, however, scientists have been unable to sufficiently increase yields to meet demand through hybridization. Production must grow 70 percent over the next 35 years – an achievable goal if annual wheat yields are increased from a current level of below 1 percent to at least 1.7 percent. It is time to invest in biotechnology to ensure yields can provide nourishment for an ever-hungrier planet.

Simultaneously, we must maintain balance in the food chain and restore depleted carbon in the soil. Such concerns as disease resilience, seed diversity, water management and micronutrient imbalance must be tackled.

Governments and the private sector must more fully support research efforts to accelerate the development of new wheat varieties or face the risk of further global insecurity related to price

CGIAR open letter to the heads of state attending the 70th UN General Assembly

Written by on September 21, 2015. Posted in Blogs.

Martin Kropff and John Snape joined leaders from CGIAR centers worldwide in an open letter to the heads of state at the 70th UN General Assembly in New York.

To read the open letter click on the link below.

http://www.ciatnews.cgiar.org/2015/09/18/open-letter-to-the-heads-of-state-attending-the-70th-un-general-assembly-september-2015-new-york/

Replacing gender myths and assumptions with knowledge

Written by on September 18, 2015. Posted in Director General's corner.

CIMMYT Director General Martin Kropff speaks on the topic of ‘Wheat and the role of gender in the developing world’ prior to the 2015 Women in Triticum Awards at the Borlaug Global Rust Initiative Workshop in Sydney on 19 September.

If we are to be truly successful in improving the lives of farmers and consumers in the developing world, we need to base our interventions on the best evidence available. If we act based only on our assumptions, we may not be as effective as we could be or, even worse, actively cause harm.

One example is the common perception that women are not involved in the important wheat farming systems of North Africa and South Asia. By recognizing and engaging with these myths, we are beginning to build a more sophisticated understanding of how agriculture works as a social practice.

Currently, there are only a few published studies that take a closer examination of the roles played by women in wheat-based farming systems. These studies have found that, in some cases, men are responsible for land preparation and planting, and women for weeding and post-harvest activities, with harvest and transport duties being shared. Between different districts in India, huge variations may be found in the amount of time that women are actively involved in wheat agriculture. This shows that some careful study into the complexities of gender and agricultural labor may hold important lessons when intervening in any particular situation.

We must also never assume that, just because women are not as involved in agriculture in a particular context, they can not benefit from more information. In a survey carried out by CIMMYT researcher Surabhi Mittal in parts of rural India, it was found that women used a local cellphone agricultural advisory service just as much as men, and that this knowledge helped them get more involved in farming-related decision-making.

Gender is not just about women

For all that it is important to include women, along with other identity groups in project planning, implementation and data collection, it is important not to get into the trap of thinking that gender-integrated approaches are just about targeting women.

For example, the World Health Organization estimates that micronutrient deficiency affects at least two billion people around the world, causing poor health and development problems in the young. The effects of micronutrient deficiency start in the womb, and are most severe from then through to the first two years of life. Therefore it would make sense to target women of childbearing age and mothers with staple varieties that have been bio-fortified to contain high levels of important micronutrients such as zinc, iron or vitamin A.

However, to do so risks ignoring the process in which the decision to change the crop grown or the food eaten in the household is taken. Both men and women will be involved in that decision, and any intervention must therefore take the influence of gender norms and relations, involving both women and men, into account.

The way ahead

To move forward, each component of the strategy for research into wheat farming systems at CIMMYT also has a gender dimension, whether focused on improving the evidence base, responding to the fact that both women and men can be end users or beneficiaries of new seeds and other technologies, or ensuring that gender is considered as a part of capacity-building efforts.

Already, 20 of our largest projects are actively integrating gender into their work, helping to ensure that women are included in agricultural interventions and share in the benefits they bring, supplying a constant stream of data for future improvement.

We have also experienced great success in targeting marginalized groups. For instance, the Hill Maize Research Project in Nepal, funded by the Swiss Agency for Development and Cooperation (SDC) alongside the U.S. Agency for International Development (USAID), focused on food-insecure people facing discrimination due to their gender or social group. By supporting them to produce improved maize varieties in community groups, the project managed not only to greatly increase their incomes, but also to improve their self-confidence and recognition in society.

CIMMYT researchers are also among the leaders of a global push to encode gender into agricultural research together with other international research partnerships. In over 125 agricultural communities in 26 countries, a field study of gender norms, agency and agricultural innovation, known as GENNOVATE, is now underway. The huge evidence base generated will help spur the necessary transformation in how gender is included in agricultural research for development.

Further information:

The Borlaug Global Rust Initiative, chaired by Jeanie Borlaug Laube, has the overarching objective of systematically reducing the world’s vulnerability to stem, yellow, and leaf rusts of wheat and advocating/facilitating the evolution of a sustainable international system to contain the threat of wheat rusts and continue the enhancements in productivity required to withstand future global threats to wheat. This international network of scientists, breeders and national wheat improvement programs came together in 2005, at Norman Borlaug’s insistence, to combat Ug99. The Durable Rust Resistance in Wheat (DRRW) project at Cornell University serves as the secretariat for the BGRI. The DRRW, CIMMYT, the International Center for Agricultural Research in the Dry Areas (ICARDA) and the FAO helped establish the BGRI a decade ago. Funding is provided by the UK Department for International Development (DFID) and the Bill & Melinda Gates Foundation. For more information, please visit www.globalrust.org.

CIMMYT is the global leader in research for development in wheat and maize and related farming systems. CIMMYT works throughout the developing world with hundreds of partners to sustainably increase the productivity of maize and wheat to improve food security and livelihoods. CIMMYT belongs to the 15-member CGIAR Consortium and leads the Consortium Research Programs on wheat and maize. CIMMYT receives support from national governments, foundations, development banks and other public and private agencies.

Follow the #BGRI2015 hashtag on social media

Twitter: @CIMMYT, @KropffMartin and @GlobalRust

From the eye in the sky to the cell phone in the field: technologies for all

Written by on August 13, 2015. Posted in Director General's corner.

Think of all the things you do with your cell phone on any given day. You can start your car, buy a coffee and even measure your heart rate. Cell phones are our alarm clocks and our cameras, our gyms and our banks. Cell phones are not just relevant for urban living but offer an opportunity to transform the lives of smallholders beyond compare. Even the most basic handset can empower farmers by providing them with instant information on weather, crop prices, and farming techniques.

For many farmers in the developing world, cell phones are the most accessible form of technology, but are only one of many technologies changing agriculture. Innovations such as the plow, irrigation and fertilizer have shaped the history of humankind. Today, technologies continue to play an essential role in agricultural production and impact the life of farmers everywhere.

Enter the era of hyper precision

Precision farming has been around for more than 30 years, but cheaper and more robust technologies are ushering in an era of hyper precision. With increasing climate uncertainties and price fluctuations, farmers can’t afford risk, and precision agriculture enables them to increase production and profits by linking biophysical determinants and variations in crop yield. A variety of farm equipment is being equipped with GPS and sensors that can measure water needs in the crop and nutrient levels in the soil, and dispense exactly the right amount of fertilizer and water as needed.

Precision agriculture may originate from large-scale, well-resourced farms, but its concept is highly transferable and it is scale independent. The pocket-sized active-crop canopy sensors, is already a game changing technology with the potential to bring precision agriculture within the reach of smallholders. Using such sensors to read crop health provides farmers with basic information that can be used for recommended nitrogen application. This has a dual purpose, both for smallholder farmers in areas where soils typically lack nitrogen, and those that over-fertilize while simultaneously reducing profitability and causing environmental pollution.

In Bangladesh, CIMMYT researchers are developing an irrigation scheduling app that predicts a week ahead of time whether a particular field requires irrigation. Based on satellite-derived estimates of crop water use, a soil water model and weather forecasts, the underlying algorithm for the app is also being tested in the north of Mexico.

The eyes in the sky

The human eye is a remote sensor, but on a farm there are many things that cannot be seen with the unaided eye, including surface temperatures and crop changes caused by extreme weather. At CIMMYT, remote sensing devices are allowing researchers to obtain information about a large area without physical contact that would otherwise be difficult to monitor. Indeed, last month I joined researchers at CIMMYT Headquarters in El Batan, Mexico, to learn more about the use of an Unmanned Aerial Vehicle (UAV) with built-in GPS and thermal and multispectral sensors that captures aerial photography to an image resolution of 3 cm. This device is being used to capture the canopy temperature and nitrogen status of crops.

Remote sensing alone is not going to teach a farmer how to properly sow a field, take the best care of his crops or optimize returns. Remote sensing explores spatial and temporal dimensions to provide a diagnosis but the next crucial step is to turn this into recommendations on nutrient management, irrigation and crop protection. The next question is how to bring these recommendations to small farms. In a low-tech setting, this depends on knowledge transfer to provide recommendations to farmers.

Learning about the use of UAV with CIMMYT scientists including (L-R) Francelino Rodrigues, Zia Ahmed, Martin Kropff, Lorena Gonzalez, Alex Park, Kai Sonder, Bruno Gérard and Juan Arista. (Photo: CIMMYT)

Livestock key to breaking Zambia’s poverty trap

Written by on August 3, 2015. Posted in Blogs.

Malende is a small village near the town of Monze in southern Zambia, a region that has been a focus of CIMMYT’s major research programs since 2005 and where cropping systems based on the principles and practices of conservation agriculture have been introduced.

Farmers in Malende are typical of smallholder farmers in Sub-Saharan Africa; they farm relatively small areas, their soils are often degraded and they suffer serious effects of climate variability such as increased heat stress, erratic rainfall and intra-seasonal droughts. Subsistence farming is predominant, as farmers lack access to functional markets for both inputs and produce. Most farmers in Malende rely on manual or animal traction and lack access to alternative farm power, which limits their landholdings to around five hectares.

CIMMYT has been working with partners to implement climate-resilient technologies such as direct seeding, mulching and diversified crop rotation to increase farmer productivity and environmental resilience. A survey conducted during the implementation of an International Fund for Agricultural Development (IFAD) project classified Zambian farmers involved in different farming operations by their household characteristics, i.e., land size, cattle and income. To validate the study of farmer typologies, CIMMYT, in collaboration with Zambia’s Ministry of Agriculture and Livestock, interviewed a smallholder farmer who owned no cattle and a farmer who owned more than 15 head in March 2015.

Jacob Sibanje farms a total of five hectares. His family consists of five adults and five children, all of whom work on the farm. He has practiced conservation agriculture for many years, produces consistently stable yields, and has started rotating maize with groundnuts, cassava, cowpeas and sweet potatoes.

When asked how his farm operations are doing, Sibanje answered, “I am struggling!” Despite progress achieved through conservation agriculture, the high price of farm inputs (specifically fertilizer and herbicides) and the lack of formal markets for his produce erode his profits annually. This means he has to take on off-farm work to get by. Sibanje’s maize harvest is solely for home consumption, and his situation is unstable, since he has to rent livestock to cultivate his land.

Lyson Sakala cultivates six hectares and supports his family of three adults and two children. Unlike Sibanje, Sakala’s approach is clearly market oriented. He practices conservation agriculture on three hectares, where he rotates maize with soybeans, cowpea and sunflower both for the local market and home consumption. The other three hectares are used as pastureland for livestock.

Sakala feeds all crop residues to his animals and applies manure mainly to the grazing area. He produces 15 liters of milk daily; seven are for home consumption and the rest are sold. Cattle are also a source of cash in case of a family emergency. Sakala can count on selling two to four cows every year for an average price of US $197 per cow. Combined milk and meat revenue allows him to purchase fertilizers at a much higher price than his fellow farmers in Malende. As Sakala’s profits increased, he started employing two farm helpers, and is now able to send all his children to school. He also obtains fodder from his neighboring farmers as supplementary feed during the dry winter season in exchange for renting animals during planting time.

How can Sibanje achieve the same success as Sakala?

CIMMYT used farm typologies based on diverse socio-economic and agricultural criteria to define different livelihood strategies in southern Zambia, and owning livestock was identified as one way of breaking the poverty trap many farmers like Sibanje are stuck in. CIMMYT is also demonstrating the added value of manure, defining the trade-offs between leaving residue on the soil and feeding it to cattle; we also identified the agroecological and socioeconomic conditions where crop-livestock integration can bring positive solutions to farmers.

When he was re-visited in June, Sibanje had already bought four heifers with the current season’s produce. He also plans to modify his farm operations to create a mixed crop-livestock system with the goal of maximizing the whole system instead of only one component, which will generate positive trade-offs.

According to the Food and Agriculture Organization of the United Nations, “The choice of mixed farming is not always a sign of improvement of the situation in which people may find themselves.” However, Sibanje and Sakala show that though all smallholders may not become market-oriented livestock farmers, they should at least own enough cattle to avoid having to rent animals for plowing and to have manure and reduce their dependency on expensive mineral fertilizers.

CIMMYT colleagues plant a tree in memory of Kantor. (Photo: C. Beaver/CIMMYT)

In fond memory of Paula Kantor (1969-2015)

Written by on June 18, 2015. Posted in Director General's corner.

As you all know, Paula Kantor died tragically on May 13, in the aftermath of a Taliban attack on the hotel where she was staying in Kabul, Afghanistan. We are all very sorry for her loss and are gathered here today to pay homage to a caring, committed, energetic and talented colleague.

Paula joined CIMMYT as a senior gender and development specialist in February 2015 to lead an ambitious research project focused on understanding the role of gender in major wheat-growing areas of Afghanistan, Ethiopia and Pakistan.

She was not a stranger to Afghanistan, having worked in Kabul from 2008 to 2010 as director and manager of the gender and livelihoods research portfolios at the Afghanistan Research and Evaluation Unit, an independent research agency. She had a love for the Afghani people and was committed to improving their lives.

I never met Paula, but having spoken to colleagues who knew her, she had an exceptionally sharp, analytical mind and a deep understanding of how change can empower men and women to give them a better chance to influence their own lives and choose their own path.

By planting this tree, we want to remember Paula for her strong passion in ensuring that her work made a difference and it is now upon us to move forward and make that difference she strived for.

CIMMYT's director general, Martin Kropff, during the memorial event. (Photo: C. Beaver/CIMMYT) — CIMMYT’s director general, Martin Kropff, during the memorial event. (Photo: C. Beaver/CIMMYT)

Conservation agriculture in Africa: where does it fit?

Written by on June 9, 2015. Posted in Blogs.

Conservation agriculture (CA) encompasses the principles of minimum soil disturbance, retention of crop residues on the soil and diversification through crop rotations and associations. Worldwide, CA adoption exceeds 125 million hectares. Its benefits include reduced production costs and soil degradation, more effective and efficient use of resources like water and fertilizer, and greater overall cropping system productivity. CA-based practices have recently regained scientific attention as part of newly emerging concepts such as sustainable intensification, ecological intensification and climate-smart agriculture.

CIMMYT’s increasing efforts to promote CA in Sub-Saharan Africa began at a regional hub in southern Africa in 2004, moved to eastern Africa in 2009, and subsequently expanded to other Africa locations. In Africa, conservation agriculture has benefitted from significant donor attention and the call to address multiple agricultural challenges, which include the pressure of expanding populations on land resources, declining soil fertility, low productivity, and the negative effects of climate variability.

Research has proven the biophysical and economic benefits of CA for Africa, yet CA adoption and spatial expansion by African farmers is relatively low, compared to its acceptance in similar agro-ecologies in the Americas and Australia.

The lack of widespread adoption in Africa has led some researchers to question the suitability of CA for smallholder farmers in Africa or the wisdom of spending resources to study and promote it. A divide between CA-for-Africa proponents and opponents in the research community has opened, obscuring issues and hindering unbiased examination of CA opportunities and constraints. Adding to the uncertainty, there is little research in Africa to assess where CA might make the best impact or, more generally, where conditions are simply too marginal for cropping systems of any type.

AFTER 10 YEARS OF RESEARCH, WE FEEL IT IS CRITICAL TO LOOK OBJECTIVELY AT WHERE WE ARE WITH CA IN AFRICA. Specifically: What is CIMMYT’s comparative advantage in the research and development of CA systems? Does “business-as-usual” — that is, conventional tillage systems — provide better outcomes? Is there any form of alternative agriculture being adopted more quickly or widely than CA? Do we gain anything if we lose our comparative advantage as a leading global CA research institute and only focus on “good agronomic practices”?

We believe that CA has great promise for smallholder farmers in sub-Saharan Africa but CIMMYT and other organizations may have approached its study and extension from the wrong angle. In particular, CA has often been promoted in Africa as a way to raise yields. In fact, short-term yield gains are common from better moisture capture and retention under CA, in seasons with erratic and prolonged dry spells. But yield benefits from CA are normally not immediate; they generally begin to appear after two-to-five cropping seasons. Smallholder farm households often live at the edge of food insecurity year-in and year-out and are undisposed to risk an innovation that raises system productivity only in the medium term.

In contrast, the adoption of CA outside of Africa has been driven by benefits such as energy savings, reduced erosion, more timely sowing, and enhanced water- and nutrient-use efficiency. Furthermore, CA adopters worldwide have typically been large-scale commercial farmers who seek enhanced and sustainable profits and, as a consequence, ways to cut production costs. So how can their positive experience apply to smallholders and be used for proper targeting and extension of CA systems in Africa?

IN OUR OPINION, CIMMYT AND ITS PARTNERS SHOULD FOCUS ON (1) identifying the key drivers that have facilitated adoption of CA worldwide and (2) delineating the niches in Africa where these drivers are present, meaning where CA is likely to fit. As a start, we may wish to look at settings where:

Farm energy is scarce or expensive (whether provided by motors, draft animals or human labor ).
Timely planting is crucial, soil degradation extensive, and climate-related stress common. (This niche might be bigger than we think in Africa)

WE BELIEVE THAT CHALLENGES HAVE TOO OFTEN BEEN CONFUSED WITH BARRIERS TO ADOPTION. Too much time and effort have been spent highlighting challenges arising when implementing CA, instead of actively looking for ways to overcome them through technological and institutional innovations, including improved working arrangements between multiple actors. Furthermore, we feel that far too many resources are being channelled by CIMMYT’s Global Conservation Agriculture and Socioeconomics Programs into diagnostic studies, without commensurate investments in applied research for innovations to address the challenges.

Future research with farmers and other stakeholders should explore opportunities to ensure that CA systems meet smallholder farmers’ needs. It should also aim to target CA principles and practices in areas where highest returns are expected. In conclusion, we believe that BUSINESS AS USUAL IS NOT AN OPTION and that, in many places where CIMMYT works, CA IS IN DEMAND to alleviate labor bottlenecks, improve the timeliness of operations, control erosion and improve water- and nutrient-use efficiency. Should this demand be ignored? Of course challenges exist, but research – and international research in particular – should not simply document challenges but also provide solutions.

Christian Thierfelder is a CIMMYT cropping systems agronomist based in Harare, Zimbabwe. He has worked since 2004 in CA projects in Malawi, Mozambique, Zambia and Zimbabwe and has conducted applied and strategic research on-farm and on-station to adapt CA to the needs of smallholder farmers in southern Africa. Through effective partnerships he has reached out to more than 10,000 farmers in southern Africa. He guided the research programs of 25 B.Sc., M.Sc. and Ph.D. students, and has authored and co-authored more than 30 research articles in high-impact peer-reviewed journals and books.

A CIMMYT systems agronomist based in Addis Ababa, Ethiopia, Frédéric Baudron trained as a tropical agronomist, specialized as a livestock scientist and worked for various development programs targeting the interface between people (mainly farmers) and wildlife. He then completed a PhD in plant production systems. Projects he leads include Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI), implemented in Ethiopia, Kenya, Tanzania and Zimbabwe.

Isaiah Nyagumbo is a CIMMYT cropping systems agronomist based in Harare, Zimbabwe. He has worked in water harvesting and soil conservation research initiatives and was a pioneer of CA work on smallholder farming systems in Zimbabwe since the 1990s. Isaiah currently leads the agronomy component of the CIMMYT managed and ACIAR funded regional program ‘Sustainable Intensification of Maize-Legume Systems in Eastern and Southern Africa (SIMLESA)’ operating in 5 countries of Eastern and Southern Africa. Isaiah has also authored and contributed to regional research publications focusing mainly on CA, agricultural water management, water harvesting and technology dissemination.

For further detail regarding these views, stay tuned for the upcoming paper:

Baudron, F., Thierfelder, C., Nyagumbo, I., Gérard B., 2015. Where to target conservation agriculture? How to overcome challenges associated with its implementation? Experience from Eastern and Southern Africa. Forthcoming (expected in early-July) in Environments.

Two-wheel tractors to increase smallholder farm power in Ethiopia

Written by on February 19, 2015. Posted in Blogs.

For Ethiopian smallholder farmers who have for millennia used the traditional animal-drawn maresha plow, two-wheel tractors could increase their productivity while reducing labor. They appear better suited to the Highlands of Ethiopia, characterized by small, fragmented farms and hilly terrain, than four-wheel tractors, which are only well-suited for large- and medium-scale farmers who comprise about 10% of the country’s estimated 14.7 million farmers. Two-wheel tractors are also very versatile and can be used for seeding, pumping water, threshing wheat and transporting heavy loads.

Service providers from three Africa RISING program sites being trained in the operation, maintenance, business, financial management and marketing of two-wheel tractors. Photo: Frédéric Baudron/CIMMYT

Although two-wheel tractors and their attachments are relatively cheap (about US $1,400) and easy to maintain, it is evident that most Ethiopian farmers won’t be able to purchase them individually. Still, they could hire the services of dedicated providers trained to use two-wheel tractors. To make mechanization accessible to smallholder farmers, on 1-5 June 2015 CIMMYT and its partners organized a training course for service providers from Debre Birhan, Sinana and Lemo woredas (districts). They were trained in the operation, maintenance, business, financial management and marketing of two-wheel tractors.

The service model being tested by CIMMYT and its partners has been adopted in Bangladesh, where a single two-wheel tractor can service up to 30 farmers. The initiative to disseminate two-wheel tractors in the Highlands of Ethiopia is supported by the United States Agency for International Development’s (USAID) Africa Research in Sustainable Intensification for the Next Generation (Africa RISING) program. After the course, trainees returned to their respective areas equipped with two-wheel tractors and various attachments, to start providing seeding, transport and water pumping services to local farmers.

Since the Growth and Transformation Plan was established by the Government of Ethiopia in 2011, tremendous progress has been made in the agricultural sector. Farmers now have access to better seeds and adequate quantities of fertilizer. Yields have increased dramatically, and improved connections between farmers and markets mean higher incomes for farmers and more food available for consumers in both rural and urban areas.

Sustaining such an increase in agricultural output, however, will require a proportionate increase in farm power. In response, the Ministry of Agriculture and the Ethiopian Agricultural Transformation Agency developed a draft national mechanization strategy in 2014, with the goal of increasing the farm power available to Ethiopian farmers 10-fold by 2025.

Securing our daily bread: boosting Africa’s wheat production

Written by on December 28, 2014. Posted in Blogs.

Edward Mabaya is a Research Associate in the Department of Applied Economics and Management at Cornell University and a development practicioner. All views expressed are his own.

Se necesita maíz de grano blanco en las zonas marginadas de Paquistán

There are many crops that conjure up an image of the African continent – maize, sorghum, millet, turf, matoke and cassava. These staples form the basis of African’s daily diet and have been established over many years through close interaction between culture and agro-ecological conditions.

Yet there is one less talked about food that you will find in every African urban area. Bread.

In 2013, African countries spent about $12 billion dollars to import 40 million metric tons of wheat, equating to about a third of the continent’s food imports. This arises as a result of the fact that only 44% of Africa’s wheat demand is met by local production. The only country on the continent with a significant production base is South Africa with over 2 million metric tons per year.

As if the current deficit was not bad enough, the demand for wheat in Africa is growing at a faster rate than for any other crop. By 2050, wheat imports are anticipated to increase by a further 23.1 million metric tons. In the last 20 years wheat imports have increased fourfold from about $3 billion in 1989 and doubled from a rate of $5 billion in 2005 (see table below). This demand is being driven by population growth, urbanization, as well as from a growing female work force who prefer wheat products, like bread or pasta, because they are faster and easier to prepare than traditional foods.

What can African countries do to reduce their wheat imports?

A short-term measure is to mandate or promote the use of composite flours that mix wheat with locally abundant starches such as cassava and starchy bananas (matoke). This practice is already in place in some countries. Nigeria, for example, mandates flour millers to include five percent cassava flour in wheat flour. Tooke flour, developed by Uganda’s Presidential initiative on Banana Industrial Development (PIBID) shows some promise. However, composite flours are only a Band-Aid solution to the growing demand for wheat based products especially given the fact that you can only substitute up to 5% before quality diminishes significantly. The only viable long-term solution is for African countries to meet a large portion of domestic demand through local production.

Like most of my African colleagues, I have always unquestioningly assumed an agronomic basis for Africa’s wheat import, that wheat is a northern hemisphere crop that does not grow well in Africa. A 2012 joint study by CIMMYT and IFPRI exploring “The Potential for Wheat Production in Africa” was an eye opener for me. Based on an integrated biological and economic simulation-based model for 12 countries, the study concluded that Africa has great potential to produce wheat in an economically viable way. The limiting factors, it turns out, are more to do with policy, institutional and social-cultural environments than agro-ecological ones. One example of which is that the heavy subsidies on wheat imports by most African governments have crowded out potential investment in domestic wheat production.

The good news is that enabling policy and institutional environments are cheaper to fix and more environmentally sustainable than making agro-ecological adaptations. The not so good news is that decades of history will be difficult to change – importing wheat is a lucrative business with strong political ties. Boosting Africa’s wheat production will require a coordinated approach with a range of partners to build the requisite enabling environment. This will need more investment in research and development, improved research infrastructure, better agricultural extensions, effective farmer associations and farmer training, better storage and improved access to affordable high quality agro-inputs (seed, fertilizers, chemicals, and machinery).

This enabling environment for wheat production in Africa will not be achieved overnight. It will take years of coordinated strategic investments and policy transformation. Key policy makers on the continent are making the first steps. In 2012, the Joint African Ministers of Agriculture and Trade “endorsed wheat as one of Africa’s strategic commodities for achieving food and nutrition security” at a meeting held in Addis Ababa. A high level Forum for Agricultural Research in Africa (FARA) meeting held in Accra in July 2013 developed a strategy for promoting African wheat production. It is especially encouraging that African governments have chosen a regional approach and multi-stakeholder approach to lower the continent’s wheat imports.

As the old African saying goes: “If you want to go fast, go alone. If you want to go far, go together.”

Is gluten the new villain? The New Yorker covers the rising gluten-free trend

Written by on November 7, 2014. Posted in Blogs.

“The most obvious question is also the most difficult to answer: How could gluten, present in a staple food that has sustained humanity for thousands of years, have suddenly become so threatening?” asks an article published in the November 3, issue of The New Yorker. The article, “Against the Grain” by Michael Specter, examines the gluten-free movement and the various theories surrounding the recent rise in “non-celiac gluten sensitivity,” the name given to those who report discomfort after eating gluten yet do not suffer from celiac disease. According to Specter, “there are many theories but no clear, scientifically satisfying answers.”

Among the theories is the notion that wheat genes have drastically changed in the past 50 years and the grain can no longer be properly digested by humans, an idea promoted by “Wheat Belly” author William Davis. Little scientific evidence supports this claim however, and the true cause of “non-celiac gluten sensitivity” symptoms remains unknown.

Specter contends that the culprit is more likely to be FODMAPs, a group of carbohydrates present in numerous food items (including wheat) that can cause abdominal pain, bloating and diarrhea; industrial bread additives such as vital wheat gluten; or unhealthy modern dietary patterns. “Although dietary patterns have changed dramatically in the past century, our genes have not,” attests Specter. “The human body has not evolved to consume a modern Western diet, with meals full of sugary substances and refined, high-calorie carbohydrates.”

For those without celiac disease, cutting gluten and wheat products from their diet may not answer the underlying cause of the symptoms, and may do more harm than good. Gluten-free products are often high in sugar and calories to make up for missing ingredients. More investigation and longterm dietary studies are necessary, Specter argues, before blaming wheat or gluten as the culprit of a growing percentage of the nation’s reported dietary sensitivities.

Raising wheat productivity across North Africa and West Asia

Written by on October 28, 2014. Posted in Blogs.

Dr. Mahmoud Solh is Director General of the International Center for Agricultural Research in the Dry Areas (ICARDA)

Wheat is a staple and strategic crop across most of North Africa and West Asia, accounting for almost 40 percent of the region’s total food supply, including 40 percent of its calorific, and 20 percent of its protein intake. ¹

However, due to a combination of environmental, policy and human constraints the region is unable to produce enough high quality wheat for its growing population – currently 417 million and expected to reach almost 500 million by 2020.²

Agricultural productivity is hampered by water scarcity: rainfall is generally very low; groundwater extraction rates are mostly unsustainable; and, growing domestic and industrial demand is putting pressure on the amount of water available for agriculture, leading to shortages in irrigated production systems. The region’s wheat production potential is also restricted by a lack of arable land.

These problems will be exacerbated by climate change, since projections show that North Africa and West Asia will be hardest hit by shifting climate patterns. Precipitation is expected to decrease while temperatures will rise, driving ever-increasing pressure on already-limited resources.³

Climate change is worrying in another respect, as it creates optimal conditions for aggressive wheat diseases and pests. A particularly destructive threat to wheat production in the region is stripe rust, a fungal disease that attacks wheat early in the growing season, weakening crops and causing significant grain losses.

Aggressive new strains of the disease are adapting to more variable rainfall and increased temperatures, and are expected to become more widespread and strike more frequently. Farmers have already endured significant losses due to stripe rust when a major epidemic struck the region four years ago.

These constraints are driving an economically unsustainable dependence on wheat imports. North Africa and West Asia are the most food-import dependent areas in the world. In 2010 alone the region imported 65.8 million tons of cereal – an amount expected to grow to more than 73 million tons by 2020.⁴

Potential crop shortages and related food-price hikes expose consumers to the vagaries of global commodity markets. The poorest members of society who spend a disproportionate amount of their income on food will be particularly hard hit.

¹FAO/CIMMYT figures in a presentation delivered by Hans-Joachim Braun at International Wheat Stripe Rust Symposium, 2011.
²Compiled by ICARDA using FAO Statistics (2012)
³FAO AQUASTAT database (http://www.fao.org/nr/aquastat; accessed in 2011)
⁴FAO Statistics Division, Rome, 2013.

Of wheat, weight, gluten and food intolerances

Written by on October 28, 2014. Posted in Blogs.

Julie Miller Jones is a professor emerita of nutrition in the Department of Nutrition and Exercise Science at St Catherine University in St Paul, Minnesota. Any opinions expressed are her own.

A popular dietary trend involves the elimination of wheat- and gluten-containing foods inspired in part by the book “Wheat Belly” written by cardiologist William Davis.

“I’d like to make the case that foods made with wheat make you fat,” Davis wrote. “I’d go as far as saying that overly enthusiastic wheat consumption is the main cause of the obesity and diabetes crisis in the United States.”
Davis claims that wheat is addictive and suggests that a diet eliminating the grain and its relatives, rye and barley is the key to weight loss and a reduction in diabetes.

Davis states that the increase in obesity and diabetes in the United States directly correlates with the increase in the sales of wheat-based products.

There are several flaws in such an interpretation

First, it is an association – the increase in the rate of obesity also directly correlates with the sales of running shoes. Correlations simply show how things vary together. Attributing the increase in obesity to wheat prevents people from addressing the real culprit – caloric imbalance. Calories have increased and physical activity has decreased. The increase in calories does not come from a single food or food group.

“Food available for consumption increased in all major food categories from 1970 to 2008. The number of average daily calories per person in the marketplace increased approximately 600 calories,” according to the President’s Council on Fitness, Sports and Nutrition and statistics from the U.S. Census Bureau.
The general rise in calorie intake reflects increases in the overall consumption of fats and oils, sugars, cereals, meats, poultry and dairy.

At the same time, physical activity has dwindled to far below recommended levels. Thus, to suggest that wheat is the cause of obesity and that its elimination is the solution fails to address overconsumption of most food types and the under-consumption of fruits and vegetables and inadequate activity.

If wheat consumption were the culprit, Americans would have been fattest in 1880 when consumption was 250 pounds (113 kilograms) per capita. We would have weighed the least in 1960 (110 pounds of wheat per capita) and continued to gain weight up until 2000 when wheat consumption climbed to 145 pounds per capita. Since 2000, we should have been losing weight as per capita wheat consumption has dropped steadily to 133 pounds.

These data show that there is no correlation between wheat consumption trends and obesity trends.
Weight-loss diets that advocate the elimination of an entire food group such as wheat may cause initial weight loss, but – like many fad diets – rarely show long-term maintenance of weight loss.

In fact, studies confirm that the easiest diets to maintain are those that deviate least from normal eating patterns. They are also much more likely to be associated with long-term weight loss and maintenance of the loss.
Further, diets that include a balance of foods and do not have “forbidden” or excluded foods are associated with the greatest success in sustaining the weight loss.

Elimination of wheat and gluten can result in problems because wheat is a major contributor to dietary fiber, B vitamins and other nutrients.

Wheat and gluten in food products is unique among proteins. It performs its “magic” by adding elasticity and structure that holds gas to make delicious bread and baked products.

Allergies, Celiac and Gluten Sensitivity

Davis posits that the gluten in grain is toxic and not fit for human consumption. While this is true for those with an allergy to wheat and celiac disease, it is not true for the population as a whole.

Medical studies show that while 35 percent of people believe they have a food allergy, only about 3 percent actually have true food allergies. For a true allergy the offending food protein (allergen) and an antigen in the body cause an immunoglobulin E reaction.

Of the 3 percent with allergies, only 0.5 percent of children and adults have been diagnosed with an allergy to one of 27 wheat proteins.

Celiac disease, an inherited autoimmune disease, was shown in 2008 to occur in one of every 133 individuals in the United States and is higher in some other countries. This level is much higher than was previously thought. This is partly due to better diagnostic methods, recognition of many symptoms that may affect systems besides the gut, and a documented increase in incidence. Nonetheless, many of those with the disease are not diagnosed and many who do not have the disease are self-diagnosing.

Non-celiac gluten sensitivity, a situation where a group of symptoms of discomfort occur with the ingestion of gluten, has been added as a potential syndrome. However, there is much disagreement about whether or not it exists, its potential causes and incidence. If it exists, incidence has been thought to be as low as 1 percent and as high as 30 percent with a recent study suggesting it may be 3 percent of the population.

Interested in this subject? Find out more information here:

Dieting and restrained eating as prospective predictors of weight gain. Link

The prevalence of celiac disease in the United States. Link

The incidence and risk of celiac disease in a healthy US adult population. Link
(Green PH, Jabri B. Celiac disease. Annu Rev Med. 2006;57:207-21; Rubio-Tapia A, Ludvigsson JF, Brantner TL, Murray JA, Everhart JE. The prevalence of celiac disease in the United States. Am J Gastroenterol. 2012 Oct;107(10):1538-44; Riddle MS, Murray JA, Porter CK. The incidence and risk of celiac disease in a healthy US adult population. Am J Gastroenterol. 2012 Aug;107(8):1248-55. Kassem Barada, Abbas Bitar, Mohamad Abdul-Razak Mokadem, Jana Ghazi Hashash, and Peter Green. Worldwide Incidence of Celiac Disease. World J Gastroenterol. 2010 March 28; 16(12): 1449–1457.)

Worries Over Wheat

The arguments presented by Davis in “Wheat Belly” and in another book titled “Grain Brain” by neurologist David Perlmutter, which states that carbohydrates destroy the human brain, have fuelled a negative view of wheat products.

Both authors claim that the wheat we are eating has been changed by biotechnology or contains genetically modified organisms (GMO).

They also claim that wheat is different from 100 years ago and contains more gluten and that it is more toxic. The statement about GMO content is false as there is no GMO wheat commercially sold anywhere on the planet.

In terms of gluten content, similar studies comparing old and new lines of grain conducted by the United States Department of Agriculture and at the University of Saskatchewan in Canada show that the gluten amount in wheat varieties more than 150 years old and current varieties varies slightly by year but the amount remains well within biological variability. This shows that the level of gluten has not changes appreciably over time.
Wheat grain provides types of dietary fiber not widely distributed in other foods. For example, the soluble fiber found in oats and barley that has been shown to lower serum cholesterol and attenuate blood glucose is not found in fruits and vegetables to any great extent.

The recommended amount of dietary fiber is 38 grams per day for adult males and 25 grams for adult females. Getting that level of fiber only from fruits and vegetables (which have an average of 2 to 4 grams of fiber per serving), would require consumption of approximately 12 to 13 servings for adult males. That is at least three times more than the amount currently eaten.

Therefore, exclusion of cereal grains – particularly bran-rich cereals – is not only problematic to getting enough of certain fiber types, it also makes it more likely that an individual will fall far below recommended fiber intakes.

From a nutritional standpoint, this is a big concern at a time when only 4 percent of the U.S. population eats the recommended level of dietary fiber given that it is listed as a nutrient of concern by the Dietary Guidelines for Americans, 2010 issued by the U.S. Office of Disease Prevention and Health Promotion.