funder_partner: Agritex

On-farm-Maize Select

Written by Leslie Domínguez on April 17, 2023. Posted in Uncategorized.

The On-farm-Maize Select project will pilot a new genomics-driven selection method based on on-farm performance of Stage 1 maize breeding materials that is expected to deliver increased rates of genetic gain to the farmers through:

More accurate selection for the conditions of small-scale producers in Sub-Saharan Africa (SSA), especially women and the poorest farmers, who often apply fewer inputs.
Improved sampling of the diversity of on-farm conditions across the entire target population of environments (TPE).
Improved understanding of the diversity of socio-economic factors, agronomic management (especially by women), and environmental on-farm conditions across the TPE.
Genomic-assisted rapid recycling of parents (population improvement) to reduce breeding cycle time.
Improved social inclusion in breeding processes, leading to greater gender responsiveness and wider appeal of breeding outputs.

The hypothesis is that generating genomic estimated breeding values (GEBVs) based on on-farm phenotyping will lead both to increased selection accuracy for performance under farmer management, including challenging conditions that women and the poorest farmers face, and enable rapid cycling of parents by reducing the number of years of testing before new crosses are made. This hypothesis will be initially tested by estimating expected genetic gain on-station and on-farm based on the genetic correlation between on-station and gender-disaggregated on-farm performance of the same set of genotypes, as well as the repeatability of selection on-station versus on-farm. The value of on-farm versus on-station testing for estimating GEBVs for parent selection and early-stage advancement will be confirmed in two selected CIMMYT maize breeding pipelines (one each in eastern and southern Africa – EA-PP1 and SA-PP1) by comparing the performance on-farm of a sample of Stage 1 breeding lines from the second cycle of on-farm vs on-station selection. The efficacy and costs of undertaking on-farm genomic selection versus on-station selection at Stage 1 of the two selected breeding pipelines will also be evaluated.

Key Outputs

The genetic correlation between, and accuracy of estimation of, on-farm and on-station breeding values will be measured in terms of ability to predict performance under farmer management. This will enable comparison of the relative efficiency of direct selection on-farm versus indirect selection on-station. We expect that increased on-farm genetic gains will be achieved if the genetic correlation between on-farm and on-station performance is 0.8 or less.
Elite breeding populations improved for on-farm performance will be generated, and products extracted from them will be compared on-farm with those selected the same founder populations using conventional on-station selection (comparison of the products of the pipelines will not be possible until the second project phase, if approved).
Separate GEBVs generated for lines under the management of male and female farmers, with genetic correlations estimated to ensure that performance on female-managed farms is adequately weighted in selection indices.
Genomic-assisted on-farm sparse testing network, experimental design and capacity developed.
Improved representativeness of results due to enhanced gender and social inclusion approaches in the on-farm trial design.

Expected Outcomes

Greater rates of genetic gain delivered on-farm through more extensive sampling of TPEs
Improved accuracy of selection based on performance in farmers’ fields in the TPE.
Incorporation of farmer-preferred traits in selection decisions supports faster replacement of older hybrids with newer products.

Two-wheel tractors transform smallholder farming communities in Masvingo

Written by Tawanda Hove on November 16, 2022. Posted in News.

Women’s representative test drives a two-wheel tractor at a seed fair, Zimbabwe. (Photo: Tawanda Hove/CIMMYT)

The two-wheel tractor has been a life changer for Ranganai Muzorori.

At a recent seed and mechanization fair in Zimbabwe, the maize farmer, who purchased the tractor on a lease-to-own basis, said he now enjoys bigger earnings.

Not only has he realized a significant change in his income due to the tractor, he no longer has to struggle to shell maize because he now has access to a machine that strips the corn off the cob.

In a day I can shell about 10 tons, which is helpful for saving precious time, Muzorori said.

Land preparation is also less arduous. “We no longer rely on animal draft power or our own manual labor, but the tractor,” he added.

Due to the versatility of the tractor, which has multiple attachments depending on the task that needs to be done, he has also secured a formal annual contract with Great Zimbabwe Hotel in the southeastern city of Masvingo. He attaches a trailer to the tractor to collect garbage and transport it to the dump, diversifying his income beyond conventional on-farm earnings.

Before the International Maize and Wheat Improvement Center (CIMMYT), in partnership with Zimbabwe’s government extension arm Agritex (Department of Agricultural, Technical and Extension Services), introduced low-cost tractors and small engine-operated farm machinery, such innovations were just a dream for many farmers in Zimbabwe who could not afford to pay $30,000 USD.

“We need to move with the times, the days of relying on either draft power or manual labor should be a thing of the past,” said Caleb Mnkandla, an Agritex supervisor. “With more exposure forums for farmers like this, we can accelerate the adoption of mechanized agriculture even at a smallholder farmer level.”

Improved mechanized tools are also now available to smallholder farmers.

Increased efficiency lightens load

A recent surge of January and tickborne diseases, which affect livestock, added to difficulties faced by many communal farmers due to draft-power shortages during land preparation and planting seasons.

This has translated to reduced yields for many farmers as the timing and efficiency of land preparation and planting has a direct impact on crop yields.

Other farmers in Masvingo are also seeing the transformative capabilities of such mechanization, as reflected in testimonials during the R4 Rural Resilience and ZAMBUKO seed and mechanization fair held in October.

The project – funded by the United States Agency for International Development (USAID), the Swiss Agency for Development and Cooperation (SDC), and the World Food Programme (WFP) – is intended to reduce the arduous manual labor associated with the use of hand operated ploughs and tools.

“Smallholder production systems in Africa have been heavily comprised of intense drudgery which makes farming less attractive for youth and difficult for women,” said Abdul Matin, a lead scientist with CIMMYT. “The new mechanization technologies we are bringing in are meant to reduce drudgery and cost, and add increased efficiencies to smallholder farmer operations.”

Private sector partners demonstrate the multi-functionality of two-wheel tractors. (Photo: Tawanda Hove/CIMMYT)

Greater accessibility through financing

In a joint collaboration, Agritex and CIMMYT provide an innovative financial scheme under which service providers pay a commitment fee of $500 USD to access the machinery. They then receive a grace period of four months and pay instalments of $100 USD a month for 20 months. The project covers half of the machinery cost as risk sharing.

So far, there are 34 service providers participating in Masvingo, offering mechanization services to smallholder farming communities for a fee. The project is a scalable pilot for the rest of the country.

The service provider model puts the focus on the asset owners, who not only enjoy the benefits of the mechanization, but also offer services to surrounding farming communities which causes exponential impact, Matin said.

The package of services farmers have been accessing include tillage, transportation, shelling and threshing services.

Tractors can be used for transportation year round, providing steady income for service providers.

The fair provides a platform to demonstrate and showcase the impact of the new technology to farmers, said Pamela Chirwa, project coordinator for CIMMYT’s Global Maize Program in the Southern Africa Regional Office located in Zimbabwe, who coordinated the event.

“We need to continuously expose farmers to other farmers who have moved on to mechanized production,” she said. “Such farmer-to-farmer extension makes it easier for others to adopt technology as they relate to each other better.”

“Adopting improved maize seed varieties alongside two-wheel tractors and other machinery will also improve capacity and potential earnings,” said Christian Thierfelder, a principal scientist with CIMMYT, addressing farmers in Masvingo, emphasizing that for conservation agriculture, mechanized equipment is a labor-saving technology.

Luganu Mwangonde (center, holding a microphone) shares her experience in climate-smart agriculture to inspire the next generation of farmers in Malula, Balaka District, Malawi.

Equal and climate-smart

Written by Shiela Chikulo on March 6, 2020. Posted in Features.

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).

Explore our coverage of International Women’s Day 2020.

Pigeon peas are a delicacy in Lemu and Mary is happy to have sufficient stock at home. (Photo: Shiela Chikulo/CIMMYT)

Pulses, cobs and a healthy soil prove the success of a rural innovator

Written by Shiela Chikulo on October 14, 2019. Posted in Features. 2 Comments on Pulses, cobs and a healthy soil prove the success of a rural innovator

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)

Climate change may worsen this gender gap. Research from the International Maize and Wheat Improvement Center (CIMMYT) shows that there are multidimensional benefits for women farmers to switch to climate-smart agriculture practices, such as planting drought-tolerant maize varieties and conservation agriculture with no tillage, soil cover and crop diversification.

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.