KULIMA stands for ‘Kutukula Ulimi m’Malawi’, which means ‘promoting farming in Malawi’ in the country’s main local language, Chichewa. KULIMA aims to sustainably increase agricultural productivity and diversification of smallholder farmers based on market demand, while increasing income generation by farm enterprises and creating jobs through developing local value addition of raw agricultural products. It also seeks to stimulate better information supply on agricultural policy, investments and their outcomes to both government actors and the general public.
Within KULIMA Action, CGIAR Centers are working to make their expertise and technologies more easily available to more people. In coordination with GIZ and FAO, they provide guidance on the suitability of technologies and inputs in different agroecological zones in Malawi, successful agricultural practices, and the application of relevant innovations and technologies to address the issues affecting agricultural production systems in a holistic manner.
CIMMYT’s role within the project is to contribute towards increasing agricultural productivity and diversification through upscaling climate-smart agriculture technologies. To achieve this, CIMMYT supports production and utilization of drought tolerant and nutritious maize along with sustainable intensification practices that protect the soil and enhance soil fertility, commonly referred to as conservation agriculture. The focus is on creating demand for these technologies among smallholders by increasing awareness through farmer training, extension messaging and demonstrating the yield benefits of using drought tolerant versus unimproved non-drought tolerant varieties, and sustainable intensification practices versus conventional ones. CIMMYT is working in collaboration with NGOs and community-based organizations to train lead farmers and extension agents to reach out to smallholder farmers.
The project is financed under the 11th European Development Fund and is being implemented in ten districts of Chitipa, Chiradzulu, Karonga, Kasungu, Mzimba, Mulanje, Nkhata Bay, Nkhotakota, Salima and Thyolo.
Objectives
Increase agricultural productivity and diversify production in a participatory, sustainable and climate-change resilient manner
Establish agricultural value chains and create related income and employment opportunities
Women play a crucial role in Ethiopian agriculture. A significant portion of their time is spent in the field helping their male counterparts with land preparation, planting, weeding and harvesting. Despite this, women face barriers in accessing productive resources and gaining financial benefits.
In 2015 and 2016, there was a 9.8% gap in farming plot productivity between woman- and man- managed farms in Ethiopia, which translated to a $203.5 million loss in the country’s GDP. Access to mechanization services though service provision could contribute to decreasing this gap.
The International Maize and Wheat Improvement Center (CIMMYT) and the German development agency GIZ have been testing service provision models in different areas of Ethiopia to expand small-scale agricultural mechanization that would benefit both men and women.
Zewdu Tesfaye, a smallholder farmer and mother of two, lives in the Amba Alaje district of the Tigray region. Two years ago, she paid $8 to become a member of the Dellet Agricultural Mechanization Youth Association (DAMYA), established to provide agricultural mechanization services in the area.
Zewdu Tesfaye drives a two-wheel tractor to the irrigation area. (Photo: Simret Yasabu/CIMMYT)
Along with other members, Tesfaye provides various services to farmers in her area that need assistance. “I take part in every assignment the group is tasked with. I drive the two-wheel tractor and I support during threshing and irrigation,” she says.
Tesfaye has now secured a job providing these services and has started earning income. In November 2019, she received $72 from the association’s threshing services, which she saved in the bank. If women are given equal opportunities and equal access to resources, she says, they have the capacity to do anything that will empower themselves and change their families’ lives.
DAMYA currently has 12 members — eight men and four women — and all responsibilities are shared, with benefits divided equally. “Agricultural mechanization is an area less accessible to women,” explains group chair Alemayehu Abreha. “Thus, we highly encourage and motivate our women members to maximize their potential and invite other women to witness that everything is possible.”
Belay Tadesse, regional advisor for GIZ’s Integrated Soil Fertility Management project, explained that the initiative aims to benefit both women and men as service providers and recipients. Various trainings are provided for women, so that they are well acquainted with the machinery, as well as with the business aspects of each model. Events and other activities are also helping spread awareness, to attract and encourage more women to get involved in similar jobs, adds Tadesse.
Belay Tadesse shows young women from Dellet how the water should flow. (Photo: Simret Yasabu/CIMMYT)
In the Gudiya Billa district, located about 220 kilometers away from Addis Ababa, the introduction of the two-wheel tractor has been a blessing for many farmers in the area, especially women. For Kidane Mengistu, farmer and mother of six, harvesting season used to bring an added strain to her already existing chores. Now everything has changed. Through the new service provision model, Mengistu is able to get help with her daily tasks from Habtamu, a farmer professionally trained in agricultural mechanization. “We now hire Habtamu, a service provider, to get different services like threshing,” she says. “He does the job in few hours with reasonable amount of payment. This has given me ample time to spend on other household chores.”
Kidane Mengistu is much happier with the threshing service she gets from the service provider. (Photo: Simret Yasabu/CIMMYT)
Maize, sorghum and teff are the three main crops grown on Mengistu’s eight hectares of land. With the introduction of the two-wheel tractor and service provision model, she and Habtamu have been able to begin potato irrigation on two hectares — Mengistu provides the land while Habtamu provides and operates the water pump — and together they share costs and income. Mengistu says she and her family have seen firsthand the benefits of the two-wheel tractor and plan to purchase their own someday.
Sixteen years of consistent learning and practice of climate-smart agriculture, led by the International Maize and Wheat Improvement Center (CIMMYT), are paying off for Luganu Mwangonde. Together with her husband Kenson, she has established herself as a successful smallholder farmer in Malawi’s Balaka district. She enjoys the multiple benefits of high yields from diverse crops, surplus to sell at the markets and improved soil quality.
“I started practicing the farming that does not demand too much labor back in 2004,” she explains at her 2.5-acre farm. “Over the years the process has become easier, because I have a full understanding of the benefits of techniques introduced through the project.”
In Malawi’s family farms, women often carry the burden of land preparation and weeding in the fields while juggling household responsibilities, contributing to widen gender differences already prevalent in the community.
Mwangonde observes that learning climate-smart techniques — such as minimum tillage, mulching and planting on flat land surfaces — has given her an advantage over other farmers practicing conventional agriculture.
Better off
At the beginning, like other farmers in the area, Mwangonde thought conservation agriculture and climate-smart techniques required a lot of work, or even hiring extra labor. As she tried this new approach, however, weed pressure in her plot decreased gradually, with the help of mulching and other techniques, and the labor required to maintain the fields reduced significantly. This allowed her to have extra time to add value to her products and sell them on the markets — and to rest.
The best gain for her is knowing that her family always has enough to eat. “I have enough grain to last until the next harvest,” she says. “My husband and I can provide for our seven children and four grandchildren.” During the 2018/19 season, Mwangonde’s family harvested six bags of maize, two bags of pigeon pea and four bags of groundnuts. The surplus from the harvest is reserved for later, when prices are more competitive.
“I am an equal partner in the farming activities. That means I can make decisions about how we work on our plot, distribute crops and apply everything that I have learnt about conservation agriculture,” Mwangonde explains. She has participated in CIMMYT activities where she could share her experiences on climate-smart agriculture with other women. As a lead farmer, she notes, she can confidently inspire the next generation of smallholders because of the empowering knowledge she has acquired.
Out of the 3,538 smallholder farmers from Balaka, Machinga and Zomba districts, up to 2,218 are women smallholder farmers who have successfully adopted climate-smart technologies.
Mwangonde is one of the beneficiaries of the Africa Research in Sustainable Intensification for the Next Generation (Africa RISING) project. She also benefitted from the support of the German Development Agency (GIZ), the International Fund for Agricultural Development (IFAD), Total Land Care (TLC) and the United States Agency for International Development (USAID).
Ephrem Tadesse is a Business Development Manager at CIMMYT.
He studies the economic viability of different technologies for smallholder farmers in different geography and crop patterns. For the last three and half year, he has been testing and identifying best-bet technologies in Ethiopia, together with local research institutes and private sector companies. Based on the performance of the machine and the economic viability for farmers and service providers, he has been working on adoption and scaling of technologies, through market linkages and facilitating access to finance.
A new small-scale agricultural machinery leasing scheme became operational in Amhara region, Ethiopia, in December 2019. The initiative offers farmers and group of farmers the opportunity to buy agricultural machineries with only 15-20% advance payment and the rest to be paid during a three-year period. Three farmers participated in the pilot phase of the project.
This initiative, led by the International Maize and Wheat Improvement Center (CIMMYT) and the German Development Agency (GIZ), is one more step to expand small-scale agricultural mechanization in Ethiopia. CIMMYT and GIZ have explored this area of work since 2015, in collaboration with government and private partners.
Subsistence modes of production, shortage of quality agricultural inputs and farm machinery services are some of the impediments to expand agricultural productivity and enhance food security in Ethiopia.
Small-scale agricultural mechanization, in the Ethiopian context, improves the quality of field operations. For example, farmers are benefiting from row planting, optimal plant population, more precise seed and fertilizer placement, efficient utilization of soil moisture during planting window. The timing of operations is also very important — delays in planting could have a serious negative impact on yield, and harvesting and threshing must be done at a time when there is no labor shortages. Small-scale mechanization drastically saves time and labor compared to conventional crop establishment systems, and reduces yield loss at the time of harvesting and threshing.
Farmers walk by irrigated potato fields during a field day to learn about the use of small-scale agricultural mechanization. (Photo: Simret Yasabu/CIMMYT)
Despite these advantages, the adoption rate has been too low. A survey conducted by IFPRI and Ethiopia’s Central Statistical Agency in 2015 shows that only 9% of farmers in Ethiopia use machine power to plough their land, harvest their output, or thresh their crops. A significant number of farmers continues to use conventional farming systems, using animal and human labor.
Ephrem Tadesse, small-scale mechanization project agribusiness specialist with CIMMYT, said that most of the land holdings in Ethiopia are small and fragmented, and thus not suitable for large agricultural machineries.
CIMMYT and its partners introduced the two-wheel tractor and tested it in different parts of the country. One of the challenges has been the issue of access to finance to buy tractors and their accessories, because of their relatively high costs for individual farmers to buy with their own cash, noted Ephrem.
CIMMYT and GIZ have been working with selected microfinance institutes to pilot a machinery leasing scheme for small-scale agricultural mechanization. For several years, they have partnered with Waliya Capital Goods Finance Business Share in the Amhara region and with Oromia Capital Goods Lease Finance Business Share Company in the Oromia region. In December 2019, three farmers in the Machakel district of the Amhara region were the first ones to receive their machines through this scheme.
Farmers in the district of Machakel participate in a field day to learn about the use of small-scale agricultural mechanization. (Photo: Simret Yasabu/CIMMYT)
Tesfaw Workneh is the father of one of the beneficiaries. “This is great opportunity for farmers like my son to access small-scale agricultural machinery,” said Tesfaw. His son only paid 30,000 Ethiopian birr, about $1,000 — that is 20% of the total cost to own the different agricultural implements. Now, he is able to provide service to other farmers and get income, he explained.
Several types of machinery are being considered for this leasing scheme, using the two wheel-tractor as the source of power: planters, harvesters/reapers, threshers/shellers, trailers and water pumps.
For farmers like Alemayew Ewnetu, this kind of machinery is a novelty that makes farming easier. “Today, my eyes have seen miracles. This is my first time seeing such machineries doing everything in a few minutes. We have always relayed on ourselves and the animals. Now I am considering selling some of my animals to buy the implements,” said Alemayew.
Demelsah Ynew, Deputy Director of Waliya Capital Goods Finance Business Share, noted that his company was established six years ago to provide services in the manufacturing sector. However, after a discussion with CIMMYT and GIZ, the company agreed to extend its services to the agriculture sector. When revising our role, he noted, we considered the limitations farmers have in adopting technologies and the vast opportunity presented in the agricultural sector. Demelsah explained that to benefit from the leasing scheme, farmers will have to fulfill a few minimal criteria, including being residents of the area and saving 15-20% of the total cost.
More than 11,000 scientists signed on to a recent report showing that planet Earth is facing a climate emergency and the United Nations warned that the world is on course for a 3.2 degree spike by 2100, even if 2015 Paris Agreement commitments are met.
Agriculture, forestry, and land-use change are implicated in roughly a quarter of global greenhouse gas emissions.
Agriculture also offers opportunities to mitigate climate change and to help farmers — particularly smallholders in developing and emerging economies who have been hardest hit by hot weather and reduced, more erratic rainfall.
Most of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while meeting the rising demand for food and, where possible, reducing emissions.
Family farmer Geofrey Kurgat (center) with his mother Elice Tole (left) and his nephew Ronny Kiprotich in their 1-acre field of Korongo wheat near Belbur, Nukuru, Kenya. (Photo: Peter Lowe/CIMMYT)
Climate-resilient crops and farming practices
53 million people are benefiting from drought-tolerant maize. Drought-tolerant maize varieties developed using conventional breeding provide at least 25% more grain than other varieties in dry conditions in sub-Saharan Africa — this represents as much as 1 ton per hectare more grain on average. These varieties are now grown on nearly 2.5 million hectares, benefiting an estimated 6 million households or 53 million people in the continent. One study shows that drought-tolerant maize can provide farming families in Zimbabwe an extra 9 months of food at no additional cost. The greatest productivity results when these varieties are used with reduced or zero tillage and keeping crop residues on the soil, as was demonstrated in southern Africa during the 2015-16 El Niño drought. Finally, tolerance in maize to high temperatures in combination with drought tolerance has a benefit at least twice that of either trait alone.
Wheat yields rise in difficult environments. Nearly two decades of data from 740 locations in more than 60 countries shows that CIMMYT breeding is pushing up wheat yields by almost 2% each year — that’s some 38 kilograms per hectare more annually over almost 20 years — under dry or otherwise challenging conditions. This is partly through use of drought-tolerant lines and crosses with wild grasses that boost wheat’s resilience. An international consortium is applying cutting-edge science to develop climate-resilient wheat. Three widely-adopted heat and drought-tolerant wheat lines from this work are helping farmers in Pakistan, a wheat powerhouse facing rising temperatures and drier conditions; the most popular was grown on an estimated 40,000 hectares in 2018.
Climate-smart soil and fertilizer management. Rice-wheat rotations are the predominant farming system on more than 13 million hectares in the Indo-Gangetic Plains of South Asia, providing food and livelihoods for hundreds of millions. If farmers in India alone fine-tuned crop fertilizer dosages using available technologies such as cellphones and photosynthesis sensors, each year they could produce nearly 14 million tons more grain, save 1.4 million tons of fertilizer, and cut CO2-equivalent greenhouse gas emissions by 5.3 million tons. Scientists have been studying and widely promoting such practices, as well as the use of direct seeding without tillage and keeping crop residues on the soil, farming methods that help capture and hold carbon and can save up to a ton of CO2 emissions per hectare, each crop cycle. Informed by CIMMYT researchers, India state officials seeking to reduce seasonal pollution in New Delhi and other cities have implemented policy measures to curb the burning of rice straw in northern India through widespread use of zero tillage.
Farmers going home for breakfast in Motoko district, Zimbabwe. (Photo: Peter Lowe/CIMMYT)
Measuring climate change impacts and savings
In a landmark study involving CIMMYT wheat physiologists and underlining nutritional impacts of climate change, it was found that increased atmospheric CO2 reduces wheat grain protein content. Given wheat’s role as a key source of protein in the diets of millions of the poor, the results show the need for breeding and other measures to address this effect.
CIMMYT scientists are devising approaches to gauge organic carbon stocks in soils. The stored carbon improves soil resilience and fertility and reduces its emissions of greenhouse gases. Their research also provides the basis for a new global soil information system and to assess the effectiveness of resource-conserving crop management practices.
CIMMYT scientist Francisco Pinto operates a drone over wheat plots at CIMMYT’s experimental station in Ciudad Obregon, Mexico. (Photo: Alfonso Cortés/CIMMYT)
Managing pests and diseases
Rising temperatures and shifting precipitation are causing the emergence and spread of deadly new crop diseases and insect pests. Research partners worldwide are helping farmers to gain an upper hand by monitoring and sharing information about pathogen and pest movements, by spreading control measures and fostering timely access to fungicides and pesticides, and by developing maize and wheat varieties that feature genetic resistance to these organisms.
Viruses and moth larvae assail maize. Rapid and coordinated action among public and private institutions across sub-Saharan Africa has averted a food security disaster by containing the spread of maize lethal necrosis, a viral disease which appeared in Kenya in 2011 and quickly moved to maize fields regionwide. Measures have included capacity development with seed companies, extension workers, and farmers the development of new disease-resilient maize hybrids.
The insect known as fall armyworm hit Africa in 2016, quickly ranged across nearly all the continent’s maize lands and is now spreading in Asia. Regional and international consortia are combating the pest with guidance on integrated pest management, organized trainings and videos to support smallholder farmers, and breeding maize varieties that can at least partly resist fall armyworm.
New fungal diseases threaten world wheat harvests. The Ug99 race of wheat stem rust emerged in eastern Africa in the late 1990s and spawned 13 new strains that eventually appeared in 13 countries of Africa and beyond. Adding to wheat’s adversity, a devastating malady from the Americas known as “wheat blast” suddenly appeared in Bangladesh in 2016, causing wheat crop losses as high as 30% on a large area and threatening to move quickly throughout South Asia’s vast wheat lands.
A community volunteer of an agricultural cooperative (left) uses the Plantix smartphone app to help a farmer diagnose pests in his maize field in Bardiya district, Nepal. (Photo: Bandana Pradhan/CIMMYT)
Partners and funders of CIMMYT’s climate research
A global leader in publicly-funded maize and wheat research and related farming systems, CIMMYT is a member of CGIAR and leads the South Asia Regional Program of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS).
CIMMYT receives support for research relating to climate change from national governments, foundations, development banks and other public and private agencies. Top funders include CGIAR Research Programs and Platforms, the Bill & Melinda Gates Foundation, Mexico’s Secretary of Agriculture and Rural Development (SADER), the United States Agency for International Development (USAID), the UK Department for International Development (DFID), the Australian Centre for International Agricultural Research (ACIAR), Cornell University, the German aid agency GIZ, the UK Biotechnology and Biological Sciences Research Council (BBSRC), and CGIAR Trust Fund Contributors to Window 1 &2.
The United Nations Framework Convention on Climate Change estimates that temperatures in Africa are set to rise significantly in coming years, with devastating results for farmers. Some regions could experience two droughts every five years, and see drastic reductions in maize yields over the next three decades.
Research demonstrates that climate-smart agriculture (CSA) is good method of mitigating the effects of climate change, for both farmers and the planet. Associated practices, which increase soil moisture levels and soil biodiversity have been shown to decrease soil erosion by up to 64%. They also have the potential to increase maize yields by 136% and incomes in dry environments by more than twice as much.
However, adoption rates remain low in some of the countries which stand to benefit the most, such as Malawi, Zambia and Zimbabwe, where the adoption of complete conservation agriculture systems is currently at 2.5%.
A new series of infographics describes some of the farming constraints will have to be addressed in order to scale climate-smart agricultural practices successfully in the region, taking into account both benefits and challenges for farmers.
Researchers visit maize fields in Ethiopia’s Wondo Genet Agricultural Research Center. (Photo: Peter Lowe/CIMMYT)
One major reason why maize productivity in sub-Saharan Africa is very low is poor soil health. Soil acidity is often mentioned because of its impact on crop yields and the extent of acid soils in the region. A recent soil mapping exercise, conducted by the Ethiopian Soil Information System (EthioSIS) under the administration of the Ethiopian Agricultural Transformation Agency (ATA), estimated that 43% of arable lands were affected by acid soils and that 3.6 million people, about 10% of the total rural population, live in areas with acidic soils.
Very acid soils — those with a pH below 5.5, roughly one hundred times more acidic than neutral soils — are associated with certain toxicities, like aluminum and iron excess, and some nutrient deficiencies. Soil acidity pushes soil nutrients out of reach of the plant, leading to stunting of root system and plant. As a result, the plant becomes also less tolerant to drought.
Soil acidification depends on soil nature, agroecology and farming systems. It happens through natural leaching of CO2 after rainfall and excess application of nitrogenous fertilizer or organic matter, for instance.
As a result, soil acidity significantly affects maize yields. In Ethiopia, studies have revealed substantial impacts on crop productivity related to acid soils and the importance of acid soil management for Ethiopia’s food security. The Ethiopian Institute of Agricultural Research (EIAR) estimated that soil acidity on wheat production alone costed the country over 9 billion Ethiopian Birr, about $300 million per year.
Acidic soils in the limelight
Preliminary analysis led by the International Food Policy Research Institute (IFPRI) suggests that yields of major cereal crops, such as wheat and barley, could increase by 20 to 40% with the application of lime in acidic areas of the country.
While these preliminary results are significant, we need to know more about local farmers’ experience with acidic soil and their mitigation strategies. Such impact assessments are however typically determined at either the national or experimental plot level and do not map where mitigating against acid soils would be the most profitable.
To improve acid soils, farmers may apply lime on their fields to raise the pH, a practice known as liming. How much lime to apply will depend on the crop, soil type but also on the quality of lime available. Liming has multiple beneficial effects like improving nitrogen fixation of legume nodules, boosting yields of legume crops.
But liming has a cost. It can quickly become a very bulky affair as we need to apply 3 to 4 tons per hectare for sandy soils and up to 8 tons per hectare for clay and humifere soils.
Furthermore, existing lime markets are quite limited or even non-existent in many areas, even those where acidic soils are prevalent. Developing supply chains from scratch is difficult and costly. Understanding the costs and potential returns to such investments is important. There are many questions to ask at different levels, from the farm and farming system to the lime supply chain. What are the available lime sources — calcitic, dolomite or blend — and lime quality? Where are the lime processing units and how could you assess the transport cost to the farms? What could be the crop yield response depending on the lime application?
User-friendly and scalable dashboard
IFPRI, in collaboration with EIAR, the International Maize and Wheat Improvement Center (CIMMYT) and the German aid agency GIZ, developed a pilot in Ethiopia’s Amhara region to help better target lime interventions for a greater impact. Amhara region was chosen because of the importance of acid soils, and access to extensive soil data.
Combination of several spatial datasets on soil quality, agroecological, weather, long-term agronomic trials and crop modelling tools enabled to generate at scale, georeferenced estimates of crop yield responses for different lime applications. Calibration of this spatial model for wheat estimated a yield increase of approximately 30% increasing the pH from 5.5 to 6.5, which is relatively consistent with general research data and expert opinion.
Mapped estimates of the grain prices and the delivered costs of lime, based on the location of the lime crushers in the region and transport costs, enables then to map out the spatial profitability of lime operations.
Initial calculations revealed a great variability of lime costs at the farmgate, with transportation representing at least half of total lime costs. It showed also that farmers often do not use the most cost-effective combination of inputs to tackle soil acidity.
Another possible application is to determine maize growing areas where lime benefits outweigh the costs, which would be ideal sites for demonstrating to farmers the positive impact lime applications could have to their livelihoods.
This Amhara lime dashboard prototype demonstrated its scalability. A national dashboard is currently being developed, which includes lime sources GPS location, grain prices and district-level soil quality mapping. This approach is tested also in Tanzania.
CIMMYT and its partners plan to package such tool in a user-friendly open-access web version that can be rapidly updated and customized depending on the area of intervention, for instance integrating a new lime source, and applied for different crops, and across the Eastern African region. Such dashboards will help development organizations and government make better informed decisions regarding lime investments.
Society faces enormous challenges in the transition to sustainable rural development. We are unlikely to make this transition unless we move away from the 20th-century paradigm that sees the world as a logical, linear system focused on “scaling up” the use of technologies to reach hundreds of millions of smallholders.
In a new article published this week on NextBillion, Lennart Woltering of CIMMYT contends that “farming communities are unlikely to continue using a new practice or technology if the surrounding system remains unchanged, since it is this very system that shaped their conventional way of farming.”
Woltering calls on the research for development community to work towards producing deeper system change and offers some key considerations for moving in the right direction.
Mary Twaya is an exemplary farmer in Lemu, a rural drought-prone community in southern Malawi, near Lake Malombe. On her one-hectare farm she grows cotton, maize, and legumes like groundnut and cowpea, which she just picked from her fields. Since agriculture is Twaya’s sole livelihood, it is important for her to get good harvests, so she can support her three children and her elderly mother. She is the only breadwinner since her husband left to sell coffee in the city and never returned.
Agriculture is critically important to the economy and social fabric of Malawi, one of the poorest countries in the World. Up to 84% of Malawian households own or cultivate land. Yet, gender disparities mean that farmland managed by women are on average 25% less productive than men. Constraints include limited access to inputs and opportunities for capacity building in farming.
Mary Twaya stands by her field during the 2018/19 season. (Photo: Christian Thierfelder/CIMMYT)
Twaya was part of a CIMMYT project that brought climate-smart agriculture practices to smallholder farmers in Malawi, Zambia and Zimbabwe.
She was enthusiastic about adopting climate-smart agriculture practices and conservation agriculture strategies in her plot. “I have always considered myself an active farmer, and when my husband left, I continued in the project around 2007 as part of the six lead ‘mother farmers’ with about 30 more ‘baby farmers’ learning through our field trials,” Twaya explained.
“We worked in Lemu since 2007 with Patrick Stanford, a very active and dedicated extension officer who introduced conservation agriculture to the village,” said CIMMYT agronomist Christian Thierfelder. “Farmers highlighted declining yields. The Lemu community was keen to transform their farming system, from conventional ridge tillage to more sustainable and climate-adapted cropping systems.” This was an ideal breeding ground for new ideas and the development of climate-smart solutions, according to Thierfelder.
Mulching, spacing and legume diversification
Showing her demonstration plot, which covers a third of her farm, Twaya highlights some of the climate-smart practices she adopted.
“Mulching was an entirely new concept to me. I noticed that it helps with moisture retention allowing my crops to survive for longer during the periods of dry spells. Compared to the crops without mulching, one could easily tell the difference in the health of the crop.”
“Thanks to mulching and no tillage, a beneficial soil structure is developed over time that enables more sustained water infiltration into the soil’’, explained Thierfelder. “Another advantage of mulching is that it controls the presence of weeds because the mulch smothers weeds unlike in conventional systems where the soil is bare.”
Research shows that conservation agriculture practices like mulching, combined with direct seeding and improved weed control practices, can reduce an average of 25-45 labor days per hectare for women and children in manual farming systems in eastern Zambia and Malawi. This time could be used more productively at the market, at home or in other income-generating activities.
A plate full of pigeon peas harvested from Mary’s plot in Lemu, Malawi. Pigeon pea grain has a high protein content of 21-25%, making it a valuable food for many families who cannot afford dairy and meat. (Photo: Shiela Chikulo/CIMMYT)
After 12 years of practicing conservation agriculture, Twaya confirms that she does not spend too much time in the field because she just uproots the weeds with no need for using a hoe. This makes the weeding task less laborious and allows her to spend her time on other chores such as fetching water, washing laundry or cleaning her homestead. “I have time to also go to the village banking and loan savings club to meet with others”.
Adopting optimum plant density, instead of throwing in three seeds in each planting hole was another transformational change. The “Sasakawa spacing” — where maize seeds are planted 25 centimeters apart in rows spaced every 75 centimeters — saves seed and boosts yields, as each plant receives adequate fertilizer, light and water without competing with the other seeds. This practice was introduced in Malawi in the year 2000 by Sasakawa Global.
Twaya pays more attention to the benefits of planting nitrogen-fixing crops alongside her maize, as she learned that “through crop rotation, legumes like pigeon pea improve the nutrition of my soil.” In the past she threw pigeon pea seeds loosely over her maize field and let it grow without any order, but now she practices a “double-up legume system,” where groundnut and pigeon pea are cropped at the same time. Pigeon peas develop slowly, so they can grow for three months without competition after groundnut is harvested. This system was introduced by the Africa RISING project, funded by USAID.
Groundnuts and pigeon peas grow under the double-up legume system in Mary Twaya’s conservation agriculture plot. (Photo: Christian Thierfelder/CIMMYT)
A mother farmer shows the way
Switching to climate-smart agriculture requires a long-term commitment and knowledge. Some farmers may resist to the changes because they initially find it new and tedious but, like Twaya observed, “it may be because they have not given themselves enough time to see the long-term benefits of some of these practices.”
With all these innovations — introduced in her farm over the years with the support of CIMMYT and the Ministry of Agriculture, Irrigation and Water Development of Malawi — Twaya reaped important economic and social benefits.
When Twaya rotates maize and pigeon pea, the maize stalks are healthy and the cobs are big, giving her higher yields. Passing-by neighbors will often exclaim ‘‘Is this your maize?’’ because they can tell it looks much more vigorous and healthier than what they see in other fields.
For the last season, Twaya harvested 15 bags of 50kg of maize from her demo plot, the equivalent of five tons per hectare. In addition to her pigeon pea and groundnut crops, she was able to feed her family well and earned enough to renovate her family home this year.
This new way of managing her fields has gained Twaya more respect and has improved her status in the community.
Through surplus sales of maize grain, pigeon pea and groundnuts over the past 12 years, Mary has generated enough income to build a new home. Nearing completion, she has purchased iron sheets for roofing this house by the end of 2019. (Photo: Shiela Chikulo/CIMMYT)
Approaching the homestead of Joseph Maravire and his wife, Reason, on a warm late August afternoon in Bvukururu, Zaka district, Zimbabwe, heaps of dry straw in their farmyard are prominent. ‘’This is for mulching for the forthcoming cropping season,’’ explains Reason. Maize stalk residues from last harvest are also stored to feed their livestock and to mix into the manure or for bedding the herd of cattle. These practices have become the norm for the Maravire family as they prepare for the next maize planting season in Zaka, one of the hottest areas of southern Zimbabwe.
“We never knew of mulching until we interacted with CIMMYT scientists in 2009. Now I cannot imagine working in my field without applying mulch,” says Reason. As one of five families selected in their village to participate in the scaling out of climate-smart agricultural technologies since 2009, the Maravire family demonstrates the evident transformative power of climate-smart agriculture.
Joseph and Reason by their heap of dry straw which is collected in preparation for mulching in the forthcoming 2019-20 season. In this drought-prone region, the Maravire learned the benefits of mulching to protect crops from recurrent dry spells. (Photo: Shiela Chikulo/CIMMYT)
Climate-smart agriculture involves farming practices that improve farm productivity and profitability, help farmers adapt to the negative effects of climate change and mitigate climate change effects, e.g. by soil carbon sequestration or reductions in greenhouse gas emissions. Climate-smart practices, such as the locally practiced conservation agriculture, aim at conserving soil moisture, retaining crop residues for soil fertility, disturbing the soil as minimally as possible and diversifying through rotation or intercropping.
As CIMMYT research shows, these practices can boost production and make farmers more food secure. This is good news for Zimbabwean farmers such as the Maravires. During an episode of El Niño in the 2015-16 and 2018-19 cropping seasons, large parts of southern Africa experienced prolonged dry spells, erratic rainfall and high temperatures initially with floods towards the end of the cropping season. A recent humanitarian appeal indicated that at least 2.9 million people in Zimbabwe were severely food insecure due to poor or no harvests that year.
Under the “Out-scaling climate-smart technologies to smallholder farmers in Malawi, Zambia & Zimbabwe’’ project — funded by the German development agency GIZ and the Centre for Coordination of Agricultural Research and Development for Southern Africa (CCARDESA), and implemented under the leadership of the Zambian Agriculture Research Institute (ZARI) with technical oversight by CIMMYT and other collaborating partners from Malawi and Zimbabwe — farmers from 19 rural communities in the three target countries received training and guidance on climate-smart agriculture practices and technologies, such as mulching, rotation and the use of direct seeders and ripper tines to practice no tillage.
Mastering climate-smart techniques, season by season
On their 0.4-hectare plot dedicated to the project activities, Joseph and Reason practiced four different planting techniques: direct seeding (sowing directly into crop residue), ripline seeding (sowing in lines created by animal draft-powered rippers), basin planting (sowing manually into planting basins created by hand hoes), and the traditional ox drawn plowing and seeding. They then planted one traditional and three drought-tolerant maize varieties.
“It soon became clear to us that using a direct seeder or ripper tine, combined with mulching, was the best option, as these sections of the field retained more moisture and produced more maize than the conventional system,” explained Joseph Maravire. Beginning in 2013, the family also started rotating maize and cowpeas and observed a significant increase in their yields. They decided to apply climate-smart agriculture practices on the rest of their 2.5-hectare farm.
“We learned that cowpeas leave nitrogen in the soil and by the time of harvesting, the leaves from the cowpeas also fall to the ground as residue and add to the mulch for the soil. The shade of cowpea also reduces weed pressure and manual weeding,” said Maravire.
Yields and food security
With these practices, the family has harvested remarkably, even during the dry seasons. In 2015-16, the worst El Niño on record, they harvested 2 tons of maize, despite the severe drought, while other households barely got anything from their fields. In good years, like the last cropping season, the family harvests 3.5 to 4 tons of maize from their entire field, three times more than their annual family food needs of approximately 1.3 tons. The additional cowpea yields of both grain and leaves provide protein-rich complementary food, which improves the family’s nutrition. To share some of these benefits with their community, the Maravire family donates up to 10% of their produce to poor elderly households in their village.
Overcoming challenges and building resilience
However, the new farming practices did not come without challenges.
“In the early days of the project, the ripper tine was not simple to use because we could not get the right depth to put manure and the maize seeds,” said Joseph Maravire.
They found a solution by making rip lines around October or November, applying manure at the onset of the rains, ripping again and placing the seed to mix with the manure.
Fall armyworm was another devastating challenge for their plot, as was the case around Zimbabwe. Like other farmers in Zimbabwe, the Maravires had access to pesticides, but the caterpillar showed some resistance to one type of pesticide. Maravire expressed interest in learning biological control options to reduce the pest’s spread.
Scaling climate smart technologies beyond the Maravire homestead
After several years of consistently good harvests with climate-smart agriculture options, the Maravire family has become a model within their community. Working closely with their agricultural extension officer, they formed a CSA farmer support group of 20 families. Joseph Maravire provides services for direct seeding and ripping to the CSA group and ensures that all of their land is prepared using no-tillage planting techniques. The couple regularly demonstrates climate-smart practices to peers during field days, where an average of 300 villagers attend. They also share their knowledge about green manure cover crops — crops such as lablab, jackbean, sunhemp, and velvet bean which, retained on the soil surface, serve as organic fertilizer — a practice they learned from project activities.
For Reason and Joseph Maravire, the rewards for adopting climate-smart agriculture benefit the family beyond food security. The income earned from maize grain sales and cowpea marketing has helped them acquire assets and rebuild one of their homes that was destroyed by Cyclone Idai in March 2019.
Joseph is confident that his family will always produce well on the replenished soil and the technologies they have learned through the project will continue to define their farming practices.
The house of Maravire homestead was damaged by Cyclone Idai in March. Joseph is nearing completion of rebuilding the house using proceeds from recent cowpea sales. (Photo: Shiela Chikulo/CIMMYT)
A researcher uses a vertical probe to measure moisture at different soil depths. (Photo: CIMMYT)
Since 1900, more than two billion people have been affected by drought worldwide, according to the Food and Agriculture Organization of the United Nations (FAO). Drought affects crops by limiting the amount of water available for optimal growth and development, thereby lowering productivity. It is one of the major abiotic stresses responsible for variability in crop yield, driving significant economic, environmental and social impacts.
A new technical manual, “Management of drought stress in field phenotyping,” provides a quantitative approach to drought stress phenotyping in crops. Phenotyping is a procedure vital to the success of crop breeding programs that involves physical assessment of plants for desired traits.
The manual provides guidance for crop breeders, crop physiologists, agronomists, students and field technicians who are working on improving crop tolerance to drought stress. It will help ensure drought screening trials yield accurate and precise data for use by breeding programs.
A sprinkler system irrigates a drought phenotyping trial field in Hyderabad, India. (Photo: CIMMYT)
Based on decades of CIMMYT’s research and experience, the manual covers aspects related to field site selection, effects of weather, crop management, maintaining uniform stress in trials, and duration of stress. It focuses on an approach that standardizes the required intensity, timing and uniformity of imposed drought stress during field trials.
Such a rigorous and accurate approach to drought screening allows for precision phenotyping. Careful management of imposed drought stress also allows the full variability in a population’s genotype to be expressed and identified during phenotyping, which means the full potential of the drought tolerance trait can be harnessed.
Variability among maize genotypes for agronomic and yield traits under managed drought stress. (Photo: CIMMYT)
“Crop breeding programs using conventional or molecular breeding approaches to develop crops with drought tolerance rely heavily on high-quality phenotypic data generated from drought screening trials,” said author and CIMMYT scientist P.H. Zaidi. “By following the guidance in this manual, users can maximize their quality standards.”
The International Maize and Wheat Improvement Center (CIMMYT) has been a pioneer in developing and deploying protocols for drought stress phenotyping, selection strategy and breeding for drought tolerance. CIMMYT’s research on drought stress in maize began in the 1970s and has since remained a top priority for the organization. Drought-tolerant maize is now one of CIMMYT’s flagship products and is a key component of CIMMYT’s portfolio of products aimed to cope with the effects of climate change in the tropics.
The information presented in the manual is based on the work on quantitative management of drought stress phenotyping under field conditions that received strong and consistent support from several donor agencies, especially Germany’s Federal Ministry for Economic Cooperation and Development (BMZ), Germany’s GIZ and the CGIAR Research Program on Maize (MAIZE). The manual itself was funded by the CGIAR Excellence in Breeding (EiB) platform.
On May 15, 2019, as part of the CGIAR System Council meeting held at the ILRI campus in Addis Ababa, Ethiopia, around 200 Ethiopian and international research and development stakeholders convened for the CGIAR Agriculture Research for Development Knowledge Share Fair. This exhibition offered a rare opportunity to bring the country’s major development investors together to learn and exchange about how CGIAR investments in Ethiopia help farmers and food systems be more productive, sustainable, climate resilient, nutritious, and inclusive.
Under the title One CGIAR — greater than the sum of its parts — the event offered the opportunity to highlight close partnerships between CGIAR centers, the Ethiopian government and key partners including private companies, civil society organizations and funding partners. The fair was organized around the five global challenges from CGIAR’s business plan: planetary boundaries, sustaining food availability, promoting equality of opportunity, securing public health, and creating jobs and growth. CGIAR and its partners exhibited collaborative work documenting the successes and lessons in working through an integrated approach.
There were 36 displays in total, 5 of which were presented by CIMMYT team members. Below are the five posters presented.
How can the data revolution help deliver better agronomy to African smallholder farmers?
This sustainability display showed scalable approaches and tools to generate site-specific agronomic advice, developed through the Taking Maize Agronomy to Scale in Africa (TAMASA) project in Nigeria, Tanzania and Ethiopia.
Maize and wheat: Strategic crops to fill Ethiopia’s food basket
This poster describes how CGIAR works with Ethiopia’s research & development sector to support national food security priorities.
Addressing gender norms in Ethiopia’s wheat sector
Research shows that restrictive gender norms prevent women’s ability to innovate and become productive. This significantly impacts Ethiopia’s economy (over 1% GDP) and family welfare and food security.
Quality Protein Maize (QPM) for better nutrition in Ethiopia
With the financial support of the government of Canada, CIMMYT together with national partners tested and validated Quality Protein Maize as an alternative to protein intake among poor consumers.
Appropriate small-scale mechanization
The introduction of small-scale mechanization into the Ethiopian agriculture sector has the potential to create thousands of jobs in machinery service provision along the farming value chain.
About the CGIAR System Council
The CGIAR System Council is the strategic decision-making body of the CGIAR System that keeps under review the strategy, mission, impact and continued relevancy of the System as a whole. The Council meets face-to-face not less than twice per year and conducts business electronically between sessions. Additional meetings can be held if necessary.
Participants in the scaling workshop stand for a group photo with the trainers. (Photo: CIMMYT)
How to scale up agricultural innovation in a sustainable and responsible manner? Through a workshop from the International Maize and Wheat Improvement Center (CIMMYT), a group from Mexico’s state of Chiapas learnt the basic principles of scaling. This knowledge will allow them to design and implement strategies that live well beyond the end of a project and that take into account the systems in which they operate.
Through presentations, group exercises and discussions, 23 people associated with the MasAgro project in Chiapas — technical advisors, coordinators and collaborators — received training on scaling sustainable and responsible agricultural innovations.
The scaling process is relevant because oftentimes the size of a problem does not match the size of its solutions. To support scaling efforts, all relevant actors and entities must subscribe to a paradigm shift to achieve a positive sustainable impact for the greatest number of people.
Executing innovations in scaling requires a paradigm shift in all relevant actors and entities involved in order to achieve positive, sustainable impact that reaches the greatest number of people.
The workshop was divided into three sections. The first section was focused on basic concepts and the definition of realistic and responsible scaling goals. In the second, the group discovered the “Scaling Scan” tool. The third section was focused on the identification of opportunities and potential actions at the project level and through strategic collaborations.
The workshop “Scaling farming innovations: the what, for what and how” took place on April 24 and 25, 2019, in Tuxtla Gutiérrez, Chiapas. The event was led by Lennart Woltering, international scaling expert at CIMMYT, María Boa, CIMMYT scaling coordinator, and Jorge García, CIMMYT Hub Manager from the MasAgro project in Chiapas.
This training was held under the project for Strengthening Market Access for Small Producers of Maize and Legumes in Oaxaca, Chiapas and Campeche, which is financed by the Walmart Foundation.
Climate Resilient Maize for Asia is supported by Germany’s development agency GIZ, and implemented as a public-private partnership, which targets enhanced resilience among resource-poor, maize-based farming families in South and Southeast Asia by providing them with abiotic stress-tolerant maize hybrids adapted to rain-fed stress-prone production systems for crop diversification, intensification and higher yields.
Most of the maize in Asia is grown as a rain-fed crop, which is prone to vagaries of seasonal monsoon rains. This is clearly reflected in the productivity of maize under rain-fed systems — usually less than half of the irrigated system. The erratic distribution pattern of monsoon rains results in drought or water logging at different crop growth stages, which is the main factor responsible for relatively low productivity of rain-fed maize. Due to the possibility of uncertain economic returns, farmers often hesitate to invest in improved seed, fertilizers and inputs, which further add to poor yields of rain-fed maize. Climate change effects are further threatening an already challenging maize mega-environment in the Asian tropics, which are identified as subject to climate change effects, with high vulnerability and low adoption capacity.
The project deals with high priorities of Asian stakeholders related to improving maize production in the face of current and anticipated effects of climate change and access to diverse and valuable maize germplasm, building upon the GIZ-funded project known as “Abiotic stress tolerant maize for increasing income and food security among the poor in South and Southeast Asia,” where significant progress is being made towards understanding the rain-fed stress-prone agro-ecologies in South and Southeast Asia, development of improved maize germplasm with enhanced levels of tolerance to drought, waterlogging or combined stress tolerance.
OBJECTIVES
Using data on elevation, aridity index and mean annual rainfall, a climate similarity map with a total 30 zones was developed for South Asia. This is useful in planning regional hybrid trials respective environment analogue.
New hybrid combinations by crossing promising stress-tolerant lines and evaluated across moisture regimes, including managed drought and waterlogging stresses, and optimal conditions, and a set of 50 promising hybrids are ready for large-scale adaptive trials.
Among the inbred lines developed under the project, four most promising lines were globally released CML (CIMMYT Maize Lines), namely CML-562, CML-563, CML-564 and CML-565, for use in low-land tropical breeding programs targeting stress-prone rainfed environment.
Total 18 Quantitative Trait Locus (QTLs) for grain yield under waterlogging and 21 QTLs for grain yield and anthesis-siling interval under drought were identified using genome-wide association studies and analyses of bi-parental populations. These validated genomic regions are candidate for introgression into elite Asia-adapted genetic background.
Breeder ready marker assays (KASP assays) have been developed for the 18 significant genomic regions that typically explained more than 10 percent of phenotypic variance under water-logging stress.
Protocol for rapid-cycle genomic selection (RC-GS) optimized with regards to constitution of suitable target population, and suitable statistical model for genomic selection.
Genetically enhanced cycle (C2) of two multi-parent synthetic populations were developed by inter-mating top 5 percent progenies with high genotypically estimated breeding values (GEBVs) were submitted for subjecting to double haploid for deriving new generation of stress-resilient maize lines
