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Tag: agroecology

Exploring Azolla Farming as a Sustainable Feed Source for Poultry in Murehwa, Zimbabwe

A handful of azolla (Photo: Telma Sibanda, CIMMYT)

Often referred to as “green gold,” Azolla is a small, free-floating and fast-growing aquatic fern with immense potential in driving towards agriculture sustainability. Thriving in waterlogged environments, this hardy plant forms a symbiotic relationship with nitrogen-fixing cyanobacteria, making it a natural fertilizer for crops like rice. Rich in protein, Azolla is also an affordable, eco-friendly feed for livestock and fish, reducing reliance on commercial alternatives. Its rapid growth and carbon sequestration capabilities contribute to climate resilience and resource efficiency. The water in the pond is enriched with nitrogen and can be used to irrigate plants/crops, increasing its value to farmers. Farmers in low-income regions are embracing Azolla as a game-changer, unlocking opportunities to boost productivity, improve soil health, and transition toward more sustainable farming practices.

Recognizing Azolla’s potential, the CGIAR-funded Transformational Agroecology across Food, Land, and Water Systems Initiative, also known as the Agroecology Initiative (AEI) in Zimbabwe, is integrating it into agroecological approaches in Murehwa. This initiative, which operates through five work packages (WPs), is reimagining farming systems by combining innovative business models (WP3) with agroecological technologies (WP1).

Chicken fowl run in Murehwa, (Photo: Loveness Mudarikwa, CIMMYT)

In one of the districts in Murehwa, AEI Zimbabwe selected poultry business model working in collaboration with Hamara Chicks, focusing on resilient and dual-purpose Sasso chickens. Known for their resistance and ability to free-range, these chickens provide both meat and eggs, offering farmers diversified income streams. Hamara Chicks implemented a two-stage model: first the brooding stage, where farmers raise chicks up to four weeks old and then sell them to other farmers who raise them from juveniles to maturity. While promising, the first cycle faced challenges, including a lack of affordable, nutritious feed, and difficulties in securing a market post-brooding and after maturity. To address these issues, WP1 and WP3 identified Azolla as a potential supplemental or alternative feed to support the poultry business model.

The dilemma of Azolla: Two sides of the coin

Azolla farming offers a compelling mix of benefits for sustainable agriculture. Environmentally friendly and resource-efficient, Azolla farming requires minimal land, water, and inputs, making it particularly suitable for small-scale farmers seeking cost-effective solutions. Its rapid growth is one of its standout attributes; under optimal conditions, Azolla can double its biomass in just 3-5 days. This rapid growth allows farmers to produce significant quantities of forage with limited investment, significantly reducing feed costs and increasing overall profitability. Its ability to be harvested daily ensures a consistent and reliable feed supply.

Source : Azolla Biosystems Ltd – Azolla Biosystems Ltd

Nutritionally, Azolla is a powerhouse. With a protein content of 25-30% (dry weight), it is packed with essential amino acids, vitamins such as A, B12, and beta-carotene, and essential minerals. When incorporated into livestock and poultry diets, Azolla contributes to improved health, faster growth rates, and better production results. For smallholder poultry farmers, these benefits translate into tangible gains in meat and egg production, providing a pathway to higher incomes. Moreover, Azolla’s agricultural utility extends beyond animal feed. Its nitrogen-fixing capability enriches soil fertility, reducing reliance on synthetic fertilizers and supporting sustainable crop production systems.

However, as promising as Azolla is, its cultivation is not without challenges. Water availability is a critical requirement, posing a potential barrier in regions with limited water resources. In Murehwa, Zimbabwe, where the CGIAR-funded Transformational Agroecology Initiative is promoting Azolla, horticulture farmers already have access to reliable water sources, alleviating this concern.

Another challenge is the maintenance of Azolla ponds. To thrive, Azolla requires well-managed conditions, including optimal pH levels and nutrient balance. Poorly maintained ponds can compromise growth and productivity. Recognizing this, farmers participating in the initiative have received extensive hands-on training to effectively manage and sustain these conditions effectively, ensuring that Azolla remains a viable and productive resource.

Empowering farmers through training and capacity building

The initiative partnered with KDV Consultancy to train 70 farmers, including 40 women in Murehwa, equipping them with essential skills for Azolla cultivation. The training sessions focused on pond construction, maintenance, and integration of Azolla into poultry feeding systems. This hands-on approach ensures that farmers can sustainably enhance their poultry value chains.

Training in progress in Murewa (Photo: Dorcas Matangi/CIMMYT)
Training in progress in Murewa (Photo: Dorcas Matangi/CIMMYT)
Training in progress in Murewa (Photo: Dorcas Matangi/CIMMYT)
Training in progress in Murewa (Photo: Dorcas Matangi/CIMMYT)

By co-designing solutions with farmers, the initiative prioritizes their needs and challenges, and promotes practical, farmer-driven outcomes. Empowering farmers with the knowledge and tools to implement sustainable practices not only strengthens their resilience but also enhances the long-term sustainability of poultry production in Murehwa. This collaborative effort is laying the groundwork for a more robust and adaptive agricultural future.

The integration of Azolla farming represents a promising step towards achieving a more sustainable and resilient agricultural system in Murehwa. By addressing the feed challenges faced by poultry farmers, Azolla not only enhances poultry production but also contributes to the broader goals of food security and economic stability in the region. As the Transformational Agroecology across Food, Land, and Water Systems project progresses, the positive impacts of innovative practices like Azolla farming continue to support the well-being and livelihoods of farmers in Murehwa.

Promoting mechanized farming technologies in Mbire and Murewa through the Agroecology Fairs

As part of the CGIAR Initiative on Agroecology, the Feed the Future Zimbabwe Mechanization and Extension activity participated in the 2024 Agroecology Fairs held in Murewa and Mbire districts on September 25 and October 17, 2024, respectively. The events provided valuable platforms to collaborate with the initiative and showcase different scaling pathways for mechanization within the context of sustainable, efficient farming.

(Photo: CIMMYT)

At the Mechanization and Extension activity’s exhibition stand, visitors explored an array of machinery specifically tailored to small-scale farming needs. Among the featured equipment were basin diggers, two-wheel tractors, multi-crop threshers, chopper grinders, trailers, and peanut butter processing machines, including a groundnut sheller, peanut roaster, and peanut butter-making machine. Each piece of equipment aligns with existing activities within the initiative to demonstrate practical solutions for improving labor efficiency and enhancing crop productivity which might be needed during agroecology transitions.

The basin digger drew significant attention, especially from farmers encountering it for the first time or wanting to know more about how they could become service providers. Designed for creating basins such as those established under the Pfumvudza/Intwasa conservation agriculture program, the basin digger can significantly reduce labor and time in land preparation, especially for those with limited access to manual labor.

The service provision model: a pathway to accessible mechanization

Participants interested in the service provision model received first-hand information on the benefits of the program and how they could sign up. The service provision model is a key part of the Feed the Future Zimbabwe Mechanization and Extension activity, designed to facilitate year-round access to mechanization services in farming communities.

Through this model, trained service providers are established locally, offering a range of fee-based services, including land preparation, crop management, post-harvest processing, value addition, and transportation. This model makes essential machinery accessible to farmers without requiring them to purchase it outright. To support the establishment of service providers, three financing options are offered:

  • Loan facility: Prospective service providers apply for a loan from BancABC, with a 30% initial deposit of the total machinery cost. Upon approval, the balance is paid directly to the machinery supplier, who then delivers the equipment.
  • Hire purchase agreement: Service providers may opt for a hire purchase arrangement with the manufacturer, where machinery is provided after an agreed deposit, with the remaining balance paid over three to four months.
  • Outright cash purchase: Community members with funds can purchase machinery.
Strong community interest and prospects for growth

The Mechanization and Extension activity stand generated substantial interest among farmers in both districts. In Murewa, 95 participants engaged with the display, with eight potential service providers expressing interest in acquiring the peanut butter-making machine, manual groundnut sheller, and peanut roaster. Groundnut production is high in Murewa, so farmers were especially intrigued by the value addition machinery, which opens new opportunities for processing and marketing.

“As groundnut farmers, these machines will give us a business opportunity to sell peanut butter in large quantities,” said attendee Colleta Nzara of Murewa district.

We used to lose so much money by just selling unshelled groundnuts because very few could manually process into peanut butter, but with these machines, the whole process is so much easier,” said Florence Mutize of Murewa district.

In Mbire, where 57 participants visited the stand, the basin digger was a major attraction.

This is the first time I am seeing this machine that can ease our labor burdens when making our Pfumvudza plots,” said Jennifer Nyatande from Mbire district. “I’m eager to invest in one to both reduce costs on my farm and offer services to others.“

(Photo: CIMMYT)

The 2024 Agroecology Fairs provided an opportunity to demonstrate how mechanization can be both accessible and transformative for smallholder farmers. With growing interest from local communities, the Mechanization and Extension activity continues to work toward sustainable agricultural development across Zimbabwe’s rural districts.

‘I have bigger plans ahead’ – The journey of Tichaona from odd-job man to agricultural entrepreneur

Tichaona transporting hay bales using his acquired two-wheel tractor (Photo: Dorcas Matangi, CIMMYT)

In the heart of Mbire’s Ward 2 in Zimbabwe, Tichaona Makuwerere has earned the trust of his community, not just as a farmer but also as a resourceful problem-solver. His journey began with “piece jobs” — manual labor that barely made ends meet. From providing firewood and bricks to renting an ox-drawn cart, Tichaona’s days were filled with tough and gritty work. Occasionally, he crossed into Zambia to collect baobab fruit for sale, returning with livestock pesticides, which he traded locally.

However, stability remained elusive. Jobs were scarce, and community hiring often favored personal connections. Undeterred, Tichaona turned to self-employment in 2007, offering ox-drawn ripping services to farmers. His commitment didn’t go unnoticed. When the CGIAR Agroecology Initiative (AEI) came to Mbire, the community recognized Tichaona’s entrepreneurial spirit and nominated him as a service provider.

Catalyst for change: CGIAR Agroecology Initiative 

The CGIAR-funded Transformational Agroecology across Food, Land, and Water Systems (AE-I) aims to empower farmers like Tichaona to lead their communities toward sustainable agricultural practices.

AE-I brings together farmers and stakeholders to address local challenges and develop practical solutions in Mbire and Murewa. Through Agroecological Living Landscapes (ALLs)—collaborative spaces for innovation—various stakeholders work to identify, co-design, test, and adopt agroecological practices. One challenge identified was that agroecology can be labor-intensive, highlighting the need to reduce labor demands by integrating mechanization for manual activities such as crop planting, manure transportation, and threshing. Partnering with private sector organizations like Kurima Machinery, AE-I provides farmers in Mbire and Murewa with the tools and training necessary to make mechanized services more accessible.

Equipped for success through training and support 

Tichaona’s journey with AE-I began with intensive training at Gwebi College of Agriculture in Zimbabwe, where he learned the intricacies of machine operation, repair, and business management. The hands-on experience gave him the confidence he needed. “It was a turning point,” said Tichaona. “The training gave me skills that are hard to come by here. I learned how to run and sustain an agricultural service business.”

In addition, Kurima Machinery provided practical guidance and support when delivering his new equipment kit, which included a two-wheel tractor, trailer, grass cutter, chopper grinder, ripper, thresher, and basin digger. Although Tichaona had no prior experience with engines, his determination, along with Kurima’s ongoing virtual support, helped him develop the skills needed to operate and maintain the equipment.

Scaling up from oxen to efficient mechanization

The kit has dramatically transformed Tichaona’s way of working. Where he once struggled with oxen, the two-wheel tractor can now complete a three-hour task in just 30 minutes. This leap in efficiency has enabled him to expand his services beyond ripping and transportation. Tichaona now offers grass cutting, baling, grinding, threshing, and basin digging services.

Mechanization has not only streamlined his business but also significantly increased his clientele. Previously, he served around 50 clients per year; now, with the tractor, he supports over 200 annual clients, many of whom are repeat customers. In a region where animal feed is scarce during the dry season, Tichaona’s baling services have become especially valuable. Over the past year, he has produced more than 3,000 bales, even attracting safari operators who use the bales as bait for animals.

“Hatisi kumira kutsvaga mabasa” (We keep going forward and look for new jobs), Tichaona reflected with pride. In his drive to grow, he has further diversified his services to include grinding forest products such as Faidherbia albida, acacia, and Piliostigma thonningii pods, producing affordable livestock feed for farmers. He acquired these skills during livestock feed production training at the ALLs.

Mechanization has not only improved productivity but also mitigated environmental risks. Grass cutting and baling have curbed the practice of uncontrolled burning, which previously caused frequent veld fires in Mbire and Murehwa. In recognition of the project’s success in promoting sustainable land use, the Environmental Management Authority (EMA) has invested in additional service kits for other wards.

Transporting grass bales in Mbire for local farmers (Photo: Dorcas Matangi, CIMMYT)
Strengthening Resilience Amid Climate Uncertainty

Tichaona’s services have become indispensable in a community grappling with erratic weather patterns and prolonged droughts. By baling grass, sorghum stalks, and crop residues, he enables farmers to store feed for their livestock, mitigating risks during drought seasons. The benefits extend beyond livestock care—his machinery has helped farmers expand cultivable areas despite a shrinking planting season.

Moreover, Tichaona has stepped up as a water carrier during the dry months. With wells drying up, villagers often dig makeshift wells in distant riverbeds. Using his tractor, Tichaona fetches water from the borehole for the community. His efforts free up time for farmers to focus on land preparation and other critical tasks, boosting their productivity.

Building a Lasting Legacy at the Community Level

Tichaona’s success has translated into significant improvements for his family. His increased income has allowed him to build a new home and purchase land in Guruve town. He has also invested in goats for his children as a form of social security. “Kudya kaviri kwaitonetsa, ikozvino takutodya uye atichatenderi kuti muenzi asvika abve pamba asina kudya (We could barely afford two meals a day, but now we eat more than four meals. We ensure that no visitor leaves without eating),” he shared.

His generosity extends beyond his family. Tichaona provides free transportation for vulnerable residents, including the elderly, and offers free grinding services to low-income families. These acts of kindness have solidified his reputation as a respected and valued member of the community.

A Model of Adaptability and Determination

Tichaona’s journey has not been without challenges. Mechanical issues, such as trailer body wear, brake replacements, and two-wheel tractor bearing failures, have tested his resourcefulness. He stocks essential spare parts, conducts regular maintenance, and leverages Kurima Machinery’s support network for troubleshooting and repairs. Collaborating with other AE-I operators, he shares tips and techniques for maintaining machinery, ensuring consistent and reliable services.

As his confidence and skills grow, Tichaona is planning to expand his offerings. He envisions adding oil pressing for sunflower and groundnut as well as peanut butter production. Already, he has invested in a grinding mill operated by his wife, allowing him to focus on field services. His ambitions extend to poultry farming, where he plans to use his chopper grinder to produce feed, incorporating local products into his supply chain.

“Ndine hurongwa hukuru” (I have bigger plans ahead), Tichaona said. He dreams of drilling a borehole to support horticulture production, a venture that would benefit not only his family but also nearby farmers by providing easier access to water. His ultimate goal is to establish a comprehensive agricultural service hub, offering everything from land preparation to livestock feed production, to strengthen the community’s resilience.

A Model for Agroecological Transformation

Tichaona’s story exemplifies the far-reaching impact of empowering local service providers in rural agriculture. Through the CGIAR Agroecology Initiative, he transformed from being a community handyman to a pioneering agricultural entrepreneur in Mbire. His contributions not only enhanced agricultural efficiency and overall life for himself and his community, but also offered a blueprint for sustainable development in agriculture. His story reminds us that when local expertise is supported and equipped, it can transform communities into models of resilience and sustainable growth.

Innovating agroecology living landscapes in Zimbabwe

Local farmers have conversations with the CGIAR Initiative on Agroecology partners in Zimbabwe during the co-designing process. (Photo: CIMMYT)

In the rural districts of Mbire and Murehwa in Zimbabwe, the CGIAR Agroecology Initiative (AE-I) has embarked on a comprehensive strategy that places farmers’ opinions at the heart of interventions to tackle the multifaceted challenges of agroecosystems. Recognizing challenges such as pest and disease outbreaks, periodic drought, inadequate grazing lands, and limited access to quality seeds and livestock breeds, the AE-I team has initiated a collaborative process involving various stakeholders to develop tailored agroecological solutions.

This integrated approach emphasizes active participation and cooperation among agricultural extension services, including the Department of Agricultural Technical and Extension Services of Zimbabwe (AGRITEX), food system actors (FSAs), and technology providers. These organizations have collaborated to form Agroecology Living Landscapes (ALLs) to identify, test, and iterate relevant innovations.

“This collaborative innovation and ongoing co-designing cycle empower local communities and fosters agricultural sustainability, positioning Zimbabwe as a model for agroecology transition,” said Vimbayi Chimonyo, CIMMYT scientist and crop modeler. “With these efforts, the AE-I is improving current agricultural practices but also building a foundation for future resilience in Zimbabwe’s rural districts.”

A representation diagram of the co-designing cycle.

To ensure a well-informed process, the AE-I research team began its efforts by identifying dominant value chains in the two districts. In Murehwa, these included horticulture, maize, groundnuts, and poultry; while in Mbire, sorghum, cotton, and livestock. Challenges noted included production constraints (availability of improved seed and labor), biophysical constraints (water availability, increased incidents of fall armyworm), economic (market access) and social (agency).

Next, the AE-I research team, and the ALLs conducted a series of surveys, focus group discussions, and key informant interviews to understand existing opportunities that might address the challenges and aid in strengthening the value chains. The AE-I team discovered opportunities related to addressing labor shortages and improving access to improved technologies.

As a result, the research team introduced appropriate scale machinery, suggested seed and livestock fairs to increase access to agroecological inputs, established a series of demonstration plots to showcase technologies that improve water use, and increased mitigation efforts for fall armyworm. After introducing machinery, seed and livestock fairs, and testing the technologies during the 2022/23 season, AE-I returned to ALL members to discuss the impact the activities had on their production systems and determine if any modifications were necessary.

Participants suggested increased visibility of the new technologies and methods, so the AE-I team enhanced demonstration plots and added 100 baby plots during the 2023-24 farming season.

Integrating adaptive testing and feedback yielded valuable information from farmers, providing a strong base for further adaptations in the 2023-24 farming season. This continuous engagement promoted adaptive and context-specific solutions within the AE-I, ensuring that interventions aligned with evolving community needs.

Technologies being tested

To achieve the visions of each ALL, context-specific technologies are being tested to ensure synergy across the identified value chains and collaboration among different food system actors.

Technology/Innovation Description
Demo plots 2022-23: Twenty mother plots were established to compare the performance of cereal planted in, push-pull, and conventional practices on productivity, rainwater use efficiency, and pest biocontrol.

2023-24: Additional treatments, including biochar, live mulch, and traditional treatments, were introduced. One hundred eleven baby plots were established where farmers adapted mother protocols to suit their contexts.

Farmer Field Days Conducted for the established demonstration plots in Mbire and Murehwa, these field days showcased the technologies to a broader audience and acted as an agent of evaluation and feedback for the AE-I team.
Mechanization A service provider model was adopted to introduce appropriate scale machinery, addressing the drudgery associated with farming operations. Equipment provided included threshers, basin diggers, two-wheel tractors, rippers, mowers, chopper grinders, and balers. Training on operation, repair, and maintenance was also provided.
Capacity building Yearly work plans, co-designed by ALLs, identification of  training needs, gaps, and priorities. Facilitated by AGRITEX, these trainings equip farmers with knowledge essential to facilitate agroecology transition and fulfil ALL visions.

 

Monitoring and evaluation is a valuable component in the co-designing process where the AE-I establishes a feedback loop, engaging farmers and government stakeholders in participatory monitoring and evaluation. This ongoing exercise analyzes various indicators across different experimental treatments, providing valuable insights into the effectiveness and suitability of these approaches within the agricultural context. This continuous analysis leads to further co-designing of tailored solutions for facilitating the agroecology transition.

Farmers and stakeholders from AGRITEX welcomed and appreciated the co-designing process, as they felt empowered by the entire process. They expressed how it gives them ownership of the technologies being implemented through the AE-I project.

The success of the AE-I in the Mbire and Murehwa districts hinges on active participation and collaboration among FSAs. By continuously evaluating and integrating feedback on innovations and addressing challenges through context-specific interventions, the initiative is paving the way for adopting agroecological practices in farming, enhancing the resilience of local food systems.

This original piece was written by Craig E. Murazhi, Telma Sibanda, Dorcas Matangi, and Vimbayi G. P. Chimonyo.

Transforming agriculture together: insights from the Ukama Ustawi Share Fair

The Zimbabwe Team of the Agroecology Initiative participated in the Share Fair event of the CGIAR initiative Ukama Ustawi (UU), which was held in Masvingo, Zimbabwe, and brought together farmers, the private sector, and researchers from seven countries (Zimbabwe, South Africa, Zambia, Mozambique, Malawi, Kenya, and Ethiopia). The overarching goal for our participation was twofold: Glean insights from the UU initiative’s experiences and practices and, where possible, to adopt and adapt approaches and technologies relevant to the Agroecology Initiative. Equally significant was the aim to share our learnings and explore potential areas of collaboration. From the UU initiative perspective, the Share Fair engagement sought greater integration and knowledge exchange across its work packages, and countries where UU is being implemented, and other CGIAR initiatives. Farmers were at the center of the Share Fair, sharing and learning from each other, together with the experts.

The event aimed to foster collaboration and innovation in addressing key issues related to agriculture and sustainability in the region.

Insights from UU Share Fair activities

The Share Fair showcased an array of innovative technologies poised to transform agricultural practices in the region, among these new solar-powered borehole irrigation, chameleon soil moisture sensors for irrigation management, and conservation agriculture practices that included crop intercropping and rotation, cover cropping (mulching), and minimum tillage. Notably, mechanization options tailored for conservation agriculture, such as 2-wheel tractors and basin diggers, were demonstrated, with particular emphasis on gender-inclusive approaches for smallholder farmers. UU initiative prioritizes integrated crop and livestock systems, which are vital for small-scale farmers in terms of both dietary needs and income generation.

UU service providers and CIMMYT staff demonstrating the basin digger.
LERSHA, in collaboration with IWMI, demonstrates the chameleon soil moisture sensor.

We shared insights on the benefits of the adoption of mother-baby trials. Setting up such trials can help researchers and stakeholders identify potential risks, challenges, and limitations of the innovation without risking large-scale failure or negative impacts on the environment or communities. This helps in making informed decisions about whether or not to adopt an innovation.

In addition to technological innovations, we discussed various agribusiness tools aimed at supporting and empowering smallholder farmers. Different companies presented their agribusinesses and how they complement farming practices related to a spectrum of services, ranging from agroclimatic advice and improved access to financial services, mechanization, and digital technologies. Central to these endeavors was the objective of fostering business growth, promoting diversification, and nurturing stronger value chains within the agricultural sector.

Both initiatives (Agroecology and UU) acknowledge that farming enterprises must be matched with strong business models to guarantee long-term viability, and recognize the critical nexus between production and markets, underlining the importance of equipping farmers with financial literacy skills and encouraging diligent record-keeping practices.

Farmers participating in the Share Fair were trained on the use of the business model canvas to manage their businesses. They were taken through a practical session of aligning their farming enterprises with the business model canvas. The importance of ensuring the balance of all elements of the business model canvas was stressed. Farmers were encouraged to adopt a market-based approach to farming as a business. Farmers were urged to develop a thorough grasp of market dynamics in addition to skillful financial management techniques, emphasizing a market-based approach. The activities of the session, although summarized, were similar to the training that the Agroecology Initiative team has been carrying out in the identified business models of sorghum contract farming and the SASSO brooding program.

Blessing from CIMMYT at one of UU’s mother trial plots explaining the importance and benefits of crop diversification, rotation, and mulching.

Conclusion: Similar approaches, same objectives

The Agroecology Initiative team of Zimbabwe and the UU Initiative share a common goal of strengthening the resilience of the food systems and improving farmer livelihoods through sustainable agriculture methods. Through the development of synergies and the utilization of complementary strengths, they are in a position to jointly map out a course toward a more fair and sustainable agricultural landscape that promises prosperity for future generations. By facilitating cross-learning initiatives and leveraging indigenous knowledge systems, both initiatives can empower farmers with the tools and resources necessary to combat agricultural pests and diseases sustainably. The shared commitment to agroecological principles underscores the potential for collaboration in building resilient production systems. By facilitating cross-learning among farmers, who often have limited resources, the initiatives can empower them to leverage local knowledge and resources to solve their problems.

One major difference between the initiatives is that the UU places farmers at the center of its intervention and stakeholders as enablers, while the Agroecology Initiative emphasizes full partnerships among researchers and food system actors in addressing challenges related to local food systems and the co-development of relevant innovations that can strengthen and support resilience.

A panel of stakeholders and farmers in agribusiness explaining their business models.

Building on UU’s successful interactions with agribusinesses like LERSHA and Farm Africa, which provide mechanization, inputs, and financial services and assist farmers in developing strong and sustainable business models, we can gain from establishing similar alliances to support sustainable business models in the agricultural sector. Given the severe drought in 2023/24, farmers engaged with the SASSO chicken business model will face challenges in obtaining feed for their livestock and poultry. Exploring alternative feed sources, such as the black soldier fly, could be a potential solution. Collaborating with Insectary (a company that was present at the fair) and other local programs focused on alternative feed options could provide valuable insights and support.

The UU initiative has not actively engaged with youth in their study, while we have developed tools to understand youth participation in agriculture. There is an opportunity for the two initiatives to collaborate on a study targeting youth engagement, combining their expertise and resources to gain a deeper understanding of this issue of demographic importance and develop strategies to involve them in sustainable agriculture practices.

The original piece was written by Craig E. Murazhi, Dorcas Matangi, and Vimbayi G. P. Chimonyo and published by CGIAR’s Initiative on Agroecology. 

Mexico, a lab from which solutions are generated to address global challenges

Directors from Excellence in Agronomy visit modules and platforms at CIMMYT’s South Pacific Hub in Oaxaca, Mexico (Photo: CIMMYT)

“It was a stunning experience for me to understand the operation of a hub and see farmers interact directly with field technicians, applying the principles of Conservation Agriculture. I remember a lady from Oaxaca telling us how productive she has become using la matraca, a simple, manual seeder and fertilizer,” says Mandla Nkomo during his recent visit to the Mixteca oaxaqueña in southern Mexico.

Mandla is the chief growth officer for the Excellence in Agronomy Initiative (EiA) which, “gathers more than 10 CGIAR Research Centers whose goal is to create solutions to problems that farmers face globally. EiA works on a foundation that is driven by demand to understand the challenges farmers are dealing with, and bring forth a development system for innovation that is capable of coping with those challenges and finding solutions that can be tested, validated, and scaled,” he mentions.

His searching for a system that triggers and diffuses innovation for farmers motivated Mandla to visit the hubs in Oaxaca, Mexico. “We are here because we wanted to study all the hubs and the projects based on the methods CIMMYT and its collaborators have developed in Mexico. One of the things we consider at EiA is the successful and sustainable transition from individual use to working within a partner network.”

“What we have seen here is the work of our colleagues from CIMMYT. For the last decade, they have come up with these hubs or innovation centers situated across different agroecological regions in Mexico. What is unique about the hubs is the ecosystem they are creating, which in my opinion, is what brings excellence in agronomy,” says Mandla.

The hubs are a management approach for innovation that was developed in Mexico based on initiatives like MasAgro-Cultivos para México. Due to its big impact, it’s being replicated in Asia, Africa, and in other Latin America countries. In addition, it lies in the heart of CGIAR initiatives.

About this methodology, Mandla says those who participate in it, are trying to understand the challenges that farmers truly face. Then a platform is developed to do proper research that responds to farmers’ needs. Subsequently, they test it in modules which provides proof of the impact these solutions are having as compared to conventional farming. Finally, these solutions are transferred to areas called extension, from which large-scale innovations are implemented.

During his visit to the research platform in Santo Domingo Yanhuitlan and to modules for innovation, extension areas, seed warehouses, post-harvest modules and machinery locations at different towns in Oaxaca, Mandla Nkomo and other visitors from EiA had the opportunity of learning not only how the South Pacific Hub operates but also witnessed how this management approach for innovation is socially and culturally relevant to one of the most diverse regions in the country.

“These days have been truly amazing. They have been very useful in refining the picture of what’s possible to do and scale. Mexico is a megadiverse country with varied agroecology. Our approach can be replicated in many parts of the world. I’m very excited with what we have seen. The country that gave us corn is now providing the world with solutions that will have major impacts on global food security. So, it is now our task (me and the whole EiA team) to find ways to pass this on to other latitudes”.

Advancing conservation agriculture

A practical demonstration at Jabalpur. (Photo: CIMMYT)

Agriculture feeds the world. Yet traditional cycles of ploughing, planting, and harvesting crop and biomass products is inefficient of labor and other scarce resources and depletes soil health while emitting greenhouse gases that contribute to climate change.

One effort to ameliorate the negative effects of farming is a set of practices referred to as conservation agriculture (CA), based on the principles of minimal mechanical soil disturbance, permanent soil cover with plant material, and crop diversification.

To deliver advanced, high-level instruction on current innovative science around important aspects of cropping and farming system management to scientists from India, Bangladesh, Egypt, and Morocco, the 12th Advanced Conservation Agriculture Course hosted by the Indian Council of Agricultural Research (ICAR), CIMMYT, and the Borlaug Institute for South Asia (BISA) took place in India from December 10 to 24, 2023.

SK Chaudhari, deputy director general for Natural Resource Management, ICAR; HS Jat, director of the Indian Council of Agricultural Research-Indian Institute of Maize Research (ICAR-IIMR); Arun Joshi, country representative for India and BISA managing director, CIMMYT-India; Mahesh K. Gathala, senior systems agronomist and science lead, CIMMYT-Bangladesh; and Alison Laing, agroecologist, CIMMYT-Bangladesh, all attended the opening ceremony at the National Agricultural Science Complex in New Delhi, India.

This CA course integrated scientific advancements and multidisciplinary techniques to sustainably develop agricultural systems, restore natural resources, and improve climate resilience in agriculture throughout Asia and North Africa. It was held at leading research centers throughout India.

SK Chaudhari welcomed delegates to the course and stressed its practical character and efficacy in promoting CA management innovations, as evidenced by the significant achievements and international reputations of many former attendees and resource personnel.

“As climatic variability and change increase, the need to manage agronomic risks grows, and CA is an effective tool for farmers and scientists in both irrigated and rainfed systems,” said Chaudhari.

Twenty rising scientists from such fields as agronomy, soil science, plant protection, agricultural engineering, plant breeding, and extension, took part in the workshop where they gained a better understanding of all aspects of conservation agricultural methods in rainfed and irrigated ecosystems, as well as exposure to wide networks with prominent international scientists. Organizers prioritized the inclusion of female scientists, who made up 40% of attendees.

The workshop empowered participants to act as conservation agriculture ambassadors and champions of modern, novel agronomic methods when they return to their home institutions.

Rajbir Singh, ICAR assistant director general for Natural Resource Management, and ML Jat, global research program director of Resilient Farm and Food Systems, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) provided keynote addresses at the closing ceremony, held at the ICAR-Central Soil Salinity Research Institute in Karnal, Haryana, India.

Strengthening resilience in Mutoko farmers through agroecological research

Participants convene with key stakeholders of the RAIZ project. (Photo: CIMMYT)

Mutoko, a semi-arid area located in Mashonaland east of Zimbabwe, is prone to droughts and unpredictable rainfall patterns. In an effort to tackle the challenges faced by local smallholder farmers in the region, partners of the Resilience Building through agroecological intensification in Zimbabwe (RAIZ) project organized a participatory workshop to amplify the project’s mandate and gather feedback from key stakeholders. The workshop at Mutoko brought together diverse participants from the Women Affairs, Youth, and Agriculture ministries from the government of Zimbabwe, local leaders and council, extension officers, students, and farmers from Wards 10 and 8. Attending farmers and stakeholders expressed interest in the project that would enable them to face challenges and improve agricultural practices in Mutoko.

Working towards climate-smart solutions: the RAIZ project

RAIZ is a collaborative effort between CIMMYT, the French Agricultural Research Centre for International Development (CIRAD), and the University of Zimbabwe. The project is funded by the European Union, and it focuses on recognizing the strategic role of agroecological approaches in tackling climate change and enhancing sustainable agriculture in arid areas. Research operations are underway in Mutoko to produce scientific evidence and contribute to agroecology policy.

Agroecology offers climate-smart solutions that help farmers adapt to changing conditions, mitigate greenhouse gas emissions, conserve natural resources, and promote food security and resilience in the face of climate uncertainties. RAIZ implements ‘Living Labs’ which strengthens collaboration between diverse stakeholders, including farmers and scientists, whose collective insights help develop demand-driven solutions.

During the Mutoko workshop, Professor and Systems Agronomist Regis Chikowo provided context of RAIZ and emphasized on its goal of helping build resilience in farmers through sustainable approaches. “The aim is not only to help farmers adapt to climate change but also to enable them to thrive in the face of adversity,” said Chikowo.

Students and farmers work together on a visioning exercise. (Photo: CIMMYT)

Building synergies between research and farmer realities

To bridge the gap between research and farmer realities, six student-researchers of RAIZ are working on various aspects of building farmer resilience based on agroecological principles. Their study areas comprise of weed control, climate-proofing with resilient small grain varieties, indigenous knowledge systems, and soil health among others. One student-researcher, in collaboration with farmers, is conducting research on weed control and its impact on crop yield. In all, they are set to articulate and tackle climate change in Mutoko.

“Through my research in weed control and how it affects yields, we are hosting trials with some farmers. We are putting into effect mulch practices gumbeze ramwari, and assessing how it affects yields. We are then intercropping maize with cowpea so that farmers spend less time fighting off weeds, while promoting crop diversification,” says Juliet Murimwa, a Ph.D. student.

Knowledge and sources of information on when to expect rains and average temperatures are vital for farmers to better plan the entire planting-to-harvesting operations. Recognizing this, research student Rejoice Nyoni is studying the types and usefulness of climate services information accessed by smallholder farmers in RAIZ project sites.

“My research is centered on understanding whether smallholder farmers are getting enough knowledge from available sources, including radio which is more prominent,” says Nyoni. Farmers have long relied on traditional knowledge systems to predict weather patterns and plan farming activities. However, with climate change, some of these traditional knowledge sources are being altered. “This season, I will be joining our farmers in Mutoko to discuss and understand which indigenous knowledge systems they use to gather information about weather patterns. We want to find ways to ensure that such wisdom does not get lost, as generations are slowly moving away from traditional cultures and norms,” she adds.

CIMMYT’s work in RAIZ operational areas supported by graduate students, is also testing the effectiveness of newly availed local commercial organic fertilizers and how they contribute to climate smartness when used along with conservation agriculture practices. CIMMYT is also leading the development of an agroecology handbook, set to be used by extension staff and other development practitioners.

In line with the International Year of Millets in 2023, RAIZ actively promotes the cultivation of small grains to enhance the resilience of local farmers. As part of the project, a student researcher is conducting trials in Mutoko to assess the performance of different small grain varieties in the face of climate change. Farmers in Mutoko’s Ward 10 have started experimenting with small grains and have experienced promising yields. A farmer in Mutoko Ward 10, Mudzengera, shared his positive experience with growing sorghum, “Last year we grew three varieties of sorghum. We really liked the new variety as it was not prone to bird attack. On the other hand, the native variety we usually grow is prone to birds feasting on them. We realized good yields which improved household nutrition. I look forward to another farming season with such trials on sorghum,” he says.

Farmers and students work on a shared vision on the future of agriculture. (Photo: CIMMYT)

A shared vision for a sustainable future

A visioning exercise conducted during the workshop, solicited views from the farmers on how they envision the future of agriculture. The session, facilitated by Isaiah Nyagumbo, senior agronomist at CIMMYT, and marking the initiation of Living Laboratories in the district, started with asking farmers what change and developments they would like to see in their ward after three to four years, with respect to agriculture. The farmers were disaggregated into four groups by gender and ward. The emerging aspirations revolved around the twin goals of safeguarding the environment and enhancing crop yields. Farmers from both wards 10 and 8, expressed a shared desire to improve agricultural marketing infrastructure, agroforestry, and the protection of forests, recognizing the critical role that trees play in mitigating climate change and preserving biodiversity. Mulching, which holds immense potential in conserving soil moisture, and adopting mechanized operations were among other aspirations. Furthermore, the participants expressed interest in cultivating small grains, drought-tolerant maize, use of renewable energy, and leveraging digital platforms.

Strengthening farmer resilience through sustainable synergies between crops and livestock

Local farmer showcases her indigenous seed during the seed and livestock fair in Mbire. (Photo: CIMMYT)

Farmers, stakeholders, and partners, including seed companies, Hamara Chicks, PHI Commodities, the International Livestock Research Institute (ILRI), BioHUB Trust (BHT), Kurima Machinery and Technology, and Zimplow Limited, participated in the Seed and Livestock Fair in the Mbire and Murewa districts of Zimbabwe, which showcased indigenous and improved seed varieties and different technologies to strengthen crop and livestock value chain systems.

Initiated by CIMMYT in 2022, as the CGIAR Initiative on Agroecology, these series of fairs have become instrumental in bringing agrodealers closer to farmers and showcasing sustainable technologies and innovations that have the potential to strengthen production systems. It was also an opportunity for the agroecology initiative team to provide feedback to farmers and stakeholders on ongoing activities and technologies that were being tested since the initiative’s inception in Zimbabwe. By adopting a multi-partner approach, these fairs bring local food systems actors together to ensure food and nutrition security and improved income for farmers.

“The agroecology initiative has been collaborating with an array of organizations and institutes that can support our mission towards promoting agroecology and improving farming production, including other CGAIR entities like IWMI and ILRI, Hamara Group, Ecolyfe, and PHI Commodities,” said Dorcas Matangi, research associate at CIMMYT.

This year’s edition of the seed and livestock fair “Fostering Synergies: Diverse Crops, Livestock and Inclusive Communities” advocated for enhancing synergies within the farm to foster sustainable agroecology transitions for resilient food and nutrition outcomes. With over 800 farmers and stakeholders participating, the event provided a vibrant platform for knowledge sharing, exploration of indigenous and improved seed varieties, and sensitization of innovative technologies.

“The seed and livestock fairs hosted by the agroecology initiative bring together farmers and food system actors from all walks of life to foster learning around agroecology, which includes the importance of diversity (crop and livestock) while also appreciating local innovations in the respective area,” said Jesca Mapfinya, a Murewa farmer.

The right seed, assures a good harvest

Various seed companies participated in the fair to showcase different seeds which are well adapted in Murewa and Mbire districts.  Each agroecological region in Zimbabwe is unique, with adaptable seed varieties that are either landrace or improved. Local landraces and many underutilized crop species are adapted to weather and climate variability, climate change, and extreme weather such as drought and heat stress. Farmers indicated that their motivations for growing landraces are related to sustainable farming systems suitable for social, cultural, nutritional, and agronomic traits. Their place in rural communities remains important, providing much-needed functional diversity and social capital. Including improved varieties within the basket of options can further intensify production systems in these communities.

“Primarily, we sell seed varieties and build farmer capacity around appropriate agronomic practices. The seed fairs are a good platform to match seeds and systems and allows a farmer to provide feedback about our seed varieties and how they are performing in the respective areas,” said Onesmous Satenga, SeedCo.

Farmers interact and purchase seed from a local company. (Photo: CIMMYT)

Building crop and livestock synergies

For the first time since the inception of the fairs, livestock such as cattle, sheep, goats, chicken and rabbits were displayed. Partners, including ILRI and the Hamara Chicks, who are into sasso chicken and feed production, reiterated the importance of crop diversity for improved livestock nutrition. ILRI and the Grasslands Research Institute exhibited various local feedstocks and alternative livestock feed grasses and also presented several feed formulations. Farmers also provided feedback on the feeding strategies employed for different livestock.

“We feed cattle with poultry litter, maize grain, maize stover, and groundnut shells in various proportions depending on the availability of these feed sources. Forage legumes such as velvet bean (mucuna pruriens) and lablab (lablab purpureus) have been introduced, and we have started to grow these for feed,” said Samson Tashaya, Murewa farmer.

Local goat breeds showcased by farmers during the seed and livestock fair. (Photo: CIMMYT)

Of keen interest to farmers and stakeholders was the sasso breed of chickens that the Hamara Group was promoting.

“We have recently joined as partners with CIMMYT and are promoting hybrid chicken production, especially sasso, here in Murewa ward 27 and 4. This is our first time coming to this seed fair, and it was a learning opportunity. The interactions with farmers were really good,” said Alan Norton, team leader at Hamara Chicks.

Modernizing smallholder production systems

Mechanization experts from Kurima Machinery and Zimplow shared their recommendations at the fair. They acknowledged that farmers rely heavily on scarcely available labor and production activities that are backbreaking. They advocated for modern production systems to produce more food and support economic transformation. Experts from Kurima Machinery and Zimplow demonstrated several machines that could aid farmers in various on-farm activities.

“This fair has come at the right time as I begin land preparation for my pfumvudza (conservation agriculture plots). I have seen how the basin digger works, and I am keen to purchase an instrument to make my work much easier,” said Chief Chisunga, Mbire.

“This crop season’s outlook is still unclear, but weather experts have warned of an intense El Nino event likely to happen in the second half of the season. Technologies such as conservation agriculture can ensure good moisture retention in crop fields, and it needs to be paired with good agronomic practices,” said Tafadzwanashe Mabhaudhi, climate and food systems expert.

Live demonstration by Kurima of machinery equipment to local farmers (Photo: CIMMYT)

In sub-Saharan Africa, mineral fertilization and agroecology are not incompatible

Are agroecological approaches, based for example on the use of legumes and manure, enough by themselves to ensure a long-term increase in annual crop yields in sub-Saharan Africa (SSA), without using more mineral fertilizer?

The answer is no, according to a team of agronomists who have published an in-depth analysis of 150 scientific articles on annual crops (maize, sorghum, millet, rice, cassava, etc.) and tropical legumes, both annual grain legumes (cowpea, groundnut) and legume trees (acacia, sesbania) in tropical environments.

These publications collate 50 years of knowledge on nutrient balances in sub-Saharan Africa, biological nitrogen fixation by tropical legumes, manure use in smallholder farming systems and the environmental impact of mineral fertilizer.

“When we look at comparable climate conditions and physical soil constraints, yields of maize – the main source of calories for people – in sub-Saharan Africa are three to four times lower than elsewhere in the world. This is largely due to the fact that mineral fertilizer use (nitrogen, potassium) is on average four times lower there”, says Gatien Falconnier, a researcher at CIRAD based in Zimbabwe and lead author of the article. “On average, 13 kg of nitrogen are used per hectare and per year in sub-Saharan Africa, for all crops, bearing in mind that the poorest farmers have no access to nitrogen fertilizers and therefore do not use them. It is mainly agri-business and vegetable farmers that have access to fertilizers”, adds François Affholder, an agronomist at CIRAD based in Mozambique and co-author of the article.

Maize and cowpea intercropping in the Maravire field. (Photo: CIMMYT)

“Our objective is not to produce like Europe or North America, but to produce more and more regularly according to the seasons and the years, and thus to increase the economic sustainability of our farming systems. To do so, we must ensure a minimum level of nutrients for crops, which require essential mineral elements for efficient photosynthesis, and therefore growth. Soils are typically lacking in mineral elements in sub-Saharan Africa, and the largely insufficient organic inputs lead to nutrient deficiencies in crops. This is the main limiting factor for crop yields, excluding drought situations”, says Pauline Chivenge of the African Plant Nutrition Institute (APNI). “The work by Christian Pieri showed as early as 1989 that it is possible to restore high levels of fertility to African soils through a balanced approach to organic and mineral nutrient inputs”, says François Affholder.

The article highlights five reasons why more mineral fertilizer is needed in sub-Saharan Africa:

  1. Farming systems are characterized by very low mineral fertilizer use, widespread mixed crop-livestock systems, and significant crop diversity, including legumes. Inputs of mineral elements to crops by farmers are insufficient, resulting in a widespread decline in soil fertility due to soil nutrient mining.
  2. The nitrogen requirements of crops cannot be met solely through biological nitrogen fixation by legumes and manure recycling. Legumes can only fix atmospheric nitrogen if symbiosis with soil bacteria functions correctly, which requires absorption of different mineral elements by the plant. Ken Giller of Wageningen University highlights that the ability of legumes to capture nitrogen from the air through their symbiosis with rhizobium bacteria is a fantastic opportunity for smallholder farmers, “but the amounts on nitrogen fixed are very small unless other nutrients such as phosphorus are supplied through fertilizers”.
  3. Phosphorus and potassium are often the main limiting factors of the functioning of plants and living organisms, including symbiotic bacteria: if there is not enough phosphorus and potassium in soils, then there is no nitrogen fixation. These nutrient elements, phosphorus, potassium and micro-elements, need to be provided by fertilizers, since they cannot be provided by legumes, which draw these elements directly from the soil. In the case of manure, this is simply a transfer from grazing areas to cultivated areas, which gradually reduces fertility in grazing areas.
  4. If used appropriately, mineral fertilizers have little impact on the environment. The greenhouse gas emissions linked to nitrogen fertilizer use can be controlled through a balanced and efficient application. In addition, mineral fertilizers can be produced more efficiently in order to reduce the impact of their production on greenhouse gas emissions, keeping in mind that this impact is low, at around 1% of total anthropogenic emissions.
  5. Further reducing mineral fertilizer use in SSA would hamper productivity gains and would contribute directly to increasing food insecurity and indirectly to agricultural expansion and deforestation. Producing for a population that will double by 2050 is likely to require the use of more agricultural land. An extensive strategy thus harms biodiversity and contributes to increasing greenhouse gas emissions, contrary to an agroecological intensification strategy combined with efficient and moderate mineral fertilizer use.

“If we take account of biophysical production factors, such as climate and soil, and shortages of land and agricultural workers, it will be impossible to reach a satisfactory production level by fertilizing soils only with manure and using legumes”, says Leonard Rusinamhodzi, an agricultural researcher at the Ghana International Institute of Tropical Agriculture.

However, “agroecological principles linked directly to improving soil fertility, such as recycling of mineral and organic elements, crop efficiency and diversity, with for example agroforestry practices and cereal-legume intercropping, remain essential to improve soil health. Soil fertility is based on its organic matter content, provided by plant growth that determines the biomass that is returned to the soil in the form of roots and plant residues. Efficient mineral fertilizer use starts a virtuous circle. These nutrients are crucial for the sustainability of agricultural productivity”, says Gatien Falconnier.

The researchers therefore argue for a nuanced position that recognizes the need to increase mineral fertilizer use in sub-Saharan Africa, in a moderate manner based on efficient practices, in conjunction with the use of agroecological practices and appropriate policy support. This balanced approach is aimed at ensuring long-term food security while preserving ecosystems and preventing soil degradation.

Référence
Falconnier, G. N., Cardinael, R., Corbeels, M., Baudron, F., Chivenge, P., Couëdel, A., Ripoche, A., Affholder, F., Naudin, K., Benaillon, E., Rusinamhodzi, L., Leroux, L., Vanlauwe, B., & Giller, K. E. (2023).

The input reduction principle of agroecology is wrong when it comes to mineral fertilizer use in sub-Saharan Africa. Outlook on Agriculture, 0(0). https://doi.org/10.1177/00307270231199795

*CIRAD, CIMMYT, International Institute of Tropical Agriculture (IITA), Wageningen University and the African Plant Nutrition Institute (APNI)

Contact: presse@cirad.fr

Scientists: 

Gatien Falconnier
gatien.falconnier@cirad.fr

Pauline Chivenge
P.CHIVENGE@apni.net

Leonard Rusinamhodzi
L.Rusinamhodzi@cgiar.org

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