Jonathan Odhong is a Kenyan national specializing in agricultural innovation outreach, scaling, and impact pathways within the SAS Africa Program. He has over 13 years of experience in agricultural research and development across 15 African countries, with a strong focus on facilitating stakeholder collaboration to scale validated technologies for inclusive agricultural transformation. Before joining CIMMYT, he worked with the International Institute of Tropical Agriculture (IITA) with postings in both Nigeria and Ghana. His research interests lie at the intersection of gender, equality, social inclusion, and agricultural innovation systems.
Kamaluddin Tijjani is a cropping systems agronomist conducting research across a diverse range of tropical crops. His research interests include cropping systems, soil health and fertility management, plant nutrition, and digital extension advisories. He joined CIMMYT in 2023 to support various aspects of cropping systems and soil health research in the Southern Africa region.
Prior to joining CIMMYT, Kamaluddin worked at the Center for Dryland Agriculture in Nigeria and later at the International Institute of Tropical Agriculture, also in Nigeria. He holds a Bachelor of Science in General Agriculture, a Master of Science in Agronomy, and a Doctorate in Agronomy (specializing in crops and cropping systems in drylands), all from Bayero University, Kano, Nigeria.
The Zambia Agriculture Research Institute (ZARI)recently conducted a comprehensive retraining program for trialists, led by Lloyd Mbulwe, Lead Breeder, with support from CIMMYT. The initiative was driven by a growing demand for enhanced capacity in field book management, DNA sampling, and quality control measures.
A group photo of the training participants (Photo: ZARI)
The well-attended training brought together triallists and assistant breeders from across the country, representing various research programs, including sorghum, finger millet, and pearl millet. The platform offered a valuable opportunity to harmonize data collection procedures, ensuring consistency and accuracy in research efforts collected.
The training covered the full spectra of trial management- from planting to harvest– alongside robust guidance on data collection. Participants also received instruction on data analysis and interpretation, enabling them to extract meaningful insights from their field data. A focused session on DNA leaf sample preparation for fingerprinting emphasized the importance of accuracy and integrity in genetic research. The training introduced key concepts in quality assurance and quality control (QAQC), essential for upholding rigorous scientific standards.
Participants in the field during a hands-on evaluation session of sorghum varieties (Photo: ZARI)
A key highlight of the training was the practical session on field book management. Participants had the opportunity to work with the field book, identifying challenges and opportunities associated with its use in the field. This hands-on experience enabled them to develop a deeper understanding of the field book’s capabilities and limitations, ultimately sharpening their field-based data skills enhancing their field-based data skills.
To complement the classroom and practical sessions, participants also visited the Plant Pathology Laboratory at ZARI Headquarters, where they gained insights into disease diagnosis, sample preparation, and QAQC procedures used in laboratory settings. The visit reinforced the importance of accurate field data and proper sample handling to support robust laboratory analysis and research outcomes.
Participants at the Plant Pathology Laboratory at ZARI Headquarters, , exploring ongoing research activities (Photo: ZARI)
The training aimed to equip triallists with the necessary skills and knowledge to collect high-quality data, manage DNA samples effectively, and apply QAQC measures to ensure the reliability of research outcomes.
By enhancing the capacity of triallists, ZARI aims to improve the overall quality of research outputs-ultimately contributing to the development of improved crop varieties and enhanced agricultural productivity in Zambia.
Digital champions participating in a training activity in Choma (Photo: Moono Mwiinga Sekeleti)
In Zambia’s Southern Province, CIMMYT’s Atubandike[1] initiative is reshaping agricultural extension – moving beyond traditional top-down, one-size-fits-all models that have historically favored the well-resourced farmers. Instead, Atubandike promotes a more inclusive, demand-driven model that centers the voices of all farmers, regardless of gender, age, literacy level, or economic status. This shift is driven by a ‘phygital’ platform that blends the strengths of in-person support with the efficiency of mobile technology.
At the heart of Atubandike’s phygital platform are 84 local digital champions (DCs), half of whom are women, and 42% are under the age of 35. Selected by their communities, these champions embody the demographic shift that represents the future of agriculture. They are not external experts; but trusted peers and neighbors who serve as vital links between digital agricultural platforms and the people who need them most: the farmers. Their credibility, rooted in shared experience and local knowledge, is what enables them to build trust and drive meaningful change.
Ireen Chibilika practicing how to deliver a talk during the communications aspect of the trainings in Choma (Photo: Moono Mwiinga Sekeleti)
While mobile technology holds immense potential to sustainably boost agricultural productivity[2], many farmers remain digitally excluded. Barriers such as low literacy, limited phone access and entrenched social norms continue to hinder widespread engagement with digital advisory services [3]. That’s where the DCs step in – not only to introduce new tools, but to help dismantle these barriers; ensuring that no one is left behind.
A foundation of trust
In October and November 2024, Digital Champions from 14 Zambian communities gathered for a two-day, in-person workshop. This training, which complemented previous digital skills sessions, focused on co-developing two pivotal strategies: (1) building trust with farmers through effective communication and (2) addressing the complex gender, diversity, and inclusion (GDI) challenges affecting the DCs as well as the farmers they support.
Why begin with trust? Because trust is foundational to meaningful engagement. For farmers to adopt new climate-smart agriculture (CSA) practices and digital platforms like Atubandike, they must have confidence-both in the messengers and the technology itself. This insight shaped the training design, which was grounded [4] in empirical studies and further contextualized through in-depth interviews with 36 farmers in November 2023. The resulting curriculum emphasized care, communication, and competence – not only to help DCs build trust as messengers, but also to support farmers in using their phones with confidence. By strengthening both interpersonal and digital trust, DCs play a critical role in closing the gap between farmers and the tools that can transform their livelihoods.
The training was designed and delivered through a dialogical approach encouraging open conversation and engagement by the participants throughout the learning process. Through role plays, group discussions, and real-life scenario analysis, DCs engaged deeply with the material, facilitated peer-to-peer learning, and developed a strong sense of ownership and confidence in applying their new skills.
The session explored what it means to connect meaningfully with farmers and as one female participant shared, “the interactive nature of the training, with role plays and real-life scenarios, have given me the confidence and desire to go on and apply what I have learned in the field.”
Trust-building exercises, such as active listening and respectful communication, fostered empathy. These practices not only enhanced the DC’s ability to effectively engage with farmers – they reinforced the values that form the bedrock of inclusive community engagement.
Challenging norms and building inclusion
Trust, however, is only part of the story. True inclusion requires confronting the systemic biases that have long shaped rural agricultural systems. In Zambia, deeply rooted cultural norms often determine who gets to speak, who leads and whose voice is heard. Women, youth and the elderly frequently face significant barriers to leadership roles and are often excluded from participating in community dialogues. and their opinions often pushed aside.
Participants demonstrating how gender roles can be challenged using a drama skit (Photo: Moono Mwiinga Sekeleti)
To address this, the Gender, Diversity, and Inclusion (GDI) curriculum tackled exclusion head-on. Rooted in insights from 13 community engagement meetings held in mid-2024, the course content reflected the lived realities of local communities. These were not abstract concepts-they were honest, community-led conversations about barriers people face and the solutions they envision.
One male Digital Champion reflected: “In our communities, farming tasks like milking, planting, and weeding are often tied to gender. But moving forward, we will encourage our fellow farmers to see these as shared responsibilities.”
Female DCs also shared their personal experiences of exclusion and resilience. “Being a woman, I have faced challenges in earning recognition as a leader,’ one participant shared. “But this training has given me confidence to lead in my community.” Another young mother brought her newborn to the training – an act that symbolized the very inclusion the program espouses. “You didn’t just teach about inclusion,” she said expressing her gratitude to CIMMYT. “You demonstrated it, making sure I had support for my child so that I could focus and learn.”
An extension officer assisting a mother with her child during the training in Choma (Photo: Moono Mwiinga Sekeleti)
As the training came to a close, the DCs moved beyond theory. Together, they co-created practical strategies to address cultural resistance, promote inclusive participation, and support marginalized farmers in accessing essential agricultural resources. Empowered by new skills and a strong sense of ownership, they left not only informed but ready to act.
From insight to impact
Some of the most meaningful learning moments came from lived experience. In one session, a DC recounted how a shift in approach – simply listening – changed her relationship with a skeptical farmer. “He told me that no one had really listened to him before. That act marked the moment we started working together.”
Breakthroughs emerged during the sessions on gender dynamics. Initially met with hesitation, the role-play exercises and open dialogue gradually opened space for reflection and growth. Male DCs began to recognize the value of women’s perspectives, while female participants found renewed confidence to speak up and voice their opinions. These seemingly small shifts in mindset marked important steps toward broader social change, grounded in empathy, understanding and mutual respect.
The training also brought logistical challenges, such as the high cost of reaching remote farmers, limited phone access, and the digital divine within some households. In response, the Atubandike program introduced practical solutions, including airtime and data allowances for DCs, encouraging people to share their phones or advising farmers to borrow handsets from trusted neighbors.
To sustain this momentum, CIMMYT launched regular one-on-one check-in calls with each DC. These touchpoints offer mentorship, reflection and tailored support as DCs continue to embed trust-building and inclusive practices into their everyday work.
Looking ahead: a story of empowerment
As the sessions concluded, a new energy and sense of purpose took hold. DCs left not only with new skills, but with a clear commitment to act. They pledged to attend and host regular community meetings, conduct home visits for farmers unable to attend meetings and use WhatsApp groups to foster ongoing peer learning and collaboration.
This is just the beginning. The next chapter is about turning plans into practice ensuring that the digital revolution in agriculture is truly inclusive and leaves no farmer behind.
The story of digital champions in Zambia is one of empowerment. It is not only about their growth as leaders, but also about the transformation they are catalyzing in their communities. As they challenge social norms, build trust, and amplify unheard voices, they are shaping a more inclusive and resilient agricultural future.
[1]Atubandike, meaning “let’s chat” in Tonga, a local language spoken in Zambia’s Southern Province.
[2] Fabregas, Raissa, Michael Kremer, and Frank Schilbach. 2019. “Realizing the Potential of Digital Development: The Case of Agricultural Advice.” Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.aay3038.
Aerial view of one of the long-term, on-station trials on conservation agriculture, CIMMYT (Photo: CIMMYT).
Long-term research rarely offers quick fixes. More often, it is a patient pursuit, marked by seasons of uncertainty, occasional setbacks, and gradual, hard-won insights. Yet, when carefully managed, its outcomes can redefine farming systems and adaptation strategies to long-term climate trends.
This is the story of CIMMYT‘s persistence, working alongside Zambia’s Ministry of Agriculture to maintain some of Southern Africa’s most critical long-term Conservation Agriculture (CA) experiments for over two decades.
Scattered across Zambia’s contrasting agro-ecological zones, from the high rainfall Northern province to the drought-prone Southern Province, and the tropical savanna climate in the Eastern province, the Misamfu Research Station, Monze Farmer Training Centre, and Msekera Research Station have hosted these long-term trials, with Monze being established in 2005, Msekera in 2011, and Misamfu in 2016. Through searing droughts, erratic rainfall, floods, pest outbreaks and changing policy landscapes, these stations have systematically tested CA principles over multiple seasons, focusing on crop productivity, economic viability, and soil health, pest and disease dynamics, soil moisture and climate resilience among other aspects, to adapt CA to local farming conditions. More importantly, they have adapted these principles to Zambia’s diverse socio-economic realities and contexts.
Testing CA under Zambia’s climate gradients
At the core of these trials is a simple, but essential question: “Can CA systems be adapted to Zambia’s smallholder farmer conditions to improve productivity, soil health, and resilience under climate variability?”
Each research station offers a unique window into answering this question. For instance, Monze Farmer Training Centre located in Zambia’s Southern Province, hosts one of the oldest CA trials in the region. In addition, originally set up with eight main treatments and 32 trial plots, it has since expanded to 48 plots consisting of 12 treatments, testing CA under no-tillage against conventional plough-based systems with maize, cotton and sun hemp rotations of varying sequences. The plots have accumulated invaluable data, owing to the detailed and precise monitoring of yields, soil moisture, infiltration rates, pest and disease dynamics, soil quality indicators, and soil organic matter, year after year.
Christian Thierfelder, CIMMYT’s Principal Cropping Systems Agronomist and founder of all long-term experiments reflects, “When we started, CA was a hot topic in Zambia. We wanted to know its benefits if you persist with these systems under Zambia’s conditions, not just for three or five years, but over decades”.
Two decades later, key findings from these trials reveal that rotations that include cotton and/or sun hemp consistently outperform others in maize yields due to the nitrogen-fixing and soil-improving effects of the legume and deep-rooting cotton. CA plots, especially those combining minimum tillage, residue retention, and rotations, also demonstrate better soil moisture retention and infiltration, even in drought years. In fact, one striking observation has been that during intense rainfall events, water infiltration under CA plots is dramatically higher than under conventional systems, reducing flooding, erosion, and surface run-off. CA plots absorb and retain more moisture, a significant advantage as rainfall patterns become more erratic.
However, the trials have also revealed complex trade-offs that researchers alike must accommodate. For example, while the maize-cotton-sun hemp rotation delivers exceptional yields, its economic viability hinges on market dynamics. When sun hemp seed and cotton commanded reasonable prices in the past, the system was highly profitable; in its absence, farmers risk sacrificing income for soil benefits alone. Another surprising insight comes from long-term soil organic carbon (SOC) trends. While CA systems reduce erosion and improve infiltration, the anticipated build-up of SOC has remained elusive, except at one long-term trial site outside Zambia at the Chitedze Research Station in Malawi. Thierfelder notes, “Declining rainfall, declining biomass, and declining soil carbon levels are interconnected. CA alone may not reverse these trends unless combined with complementary practices like manure application or agroforestry species.”
A snapshot of different trials being implemented at Monze FTC and Misamfu Research station, CIMMYT (Photo: CIMMYT).
Adapting CA for high-rainfall areas
Misamfu Research Station, in Zambia’s wetter Northern Province, has wrestled with another challenge: CA’s performance under high-rainfall conditions. Since 2016, Misamfu has hosted the long-term CA systems trial. Originally designed to conserve moisture, CA systems, especially when planted on the flat, struggle with too much moisture, leading to waterlogging, and here, not drought, is the problem. CA plots without drainage interventions have underperformed in very wet years. Yet, new innovations are emerging. Permanent raised-beds and permanent ridges, two promising CA systems developed under irrigated systems, are showing promise by improving drainage while retaining CA’s soil health benefits.
“In relatively dry years, CA systems shine,” explains Thierfelder, “but under waterlogged conditions, we now know that permanent raised beds or ridges could be the missing link.” “Over the long-term, CA systems planted on the flat are capable of buffering high rainfall effects, probably due to improved infiltration”, remarked Blessing Mhlanga, CIMMYT’s Cropping Systems Agronomist.
Capturing cumulative effects over time
Since 2011, the CA long-term experiment at Msekera Research Station in Eastern Zambia has revealed how CA performs beyond short-term seasonal gains. Unlike seasonal experiments, these trials capture the gradual, cumulative effects of CA on soil health, water use, weed and pest dynamics, and crop yields under real-world conditions. With ten treatments, including conventional tillage, ridge and furrow systems, and CA practices- such as direct seeding, residue retention, and crop rotations, the trials provide critical evidence. So far, results from Msekera show that no-tillage systems with crop residue retention, especially when combined with crop rotations, significantly improve soil moisture retention and structure, leading to more stable crop production over time.
Why long-term matters
Long-term trials are essential to fully understand the benefits and limitations of CA across a full spectrum of climate conditions. Such trials require consistent donor support, strong partnerships with research station managers, and effective field management. Unlike short-term experiments, long-term trials capture the cumulative effects of CA practices across diverse seasons, including droughts and floods.
These trials also show that CA is not a one-size-fits-all solution — its success hinges on continuous application over time. Since to date, rainfall patterns cannot be predicted precisely, deciding to adopt CA only in dry years is ineffective. Instead, long-term trials reveal how CA builds resilience and improves productivity year after year.
This body of work is more than just a collection of experiments. It is a living archive, many years of climate, crop, and soil interactions, yielding insights impossible to capture through short-term trials. “We learned, for example, that infiltration rates under CA improved noticeably within just two years,” says Thierfelder. “But understanding yield trends, soil fertility dynamics or the role of rotations takes decades.” Moreover, these trials have shown that CA is not a one-size-fits-all solution. Its benefits are context-specific, often requiring adaptive management depending on rainfall, soil type, and market conditions.
From plots to farmers’ fields
The value of this long-term work extends beyond research stations. Field days and exposure visits have allowed farmers and extension officers to engage directly with these trials, drawing lessons for their own fields. In some regions, farmers are already adapting lessons, adopting rotations, maintaining residues, experimenting with raised beds and permanent ridges, and tailoring CA to their realities. Importantly, the trials continue to evolve. While core treatments remain unchanged to preserve data integrity, small innovations, such as integrating manure or testing alternative rotations, are helping to sharpen recommendations for the next generation of CA practitioners.
An aerial view of a mother trial implementer in Zambia, SIFAZ (Photo: CIMMYT).
The road ahead
As climate variability intensifies, the value of long-term research becomes even more critical. These trials offer answers to one of agriculture’s most urgent questions: How can CA be fine-tuned to deliver resilience and productivity? This is not just a scientific quest; it is about securing the future of Zambia’s smallholders, helping them navigate a more uncertain climate future, and ensuring their fields remain productive for the next generations.
The destructive Fall armyworm in a farmer’s field (CIMMYT)
Farmers in southern Africa face a double tragedy: drought in one season or flooded fields in another. Shredded leaves, twisted tassels, and frizzled maize cobs reflect more than just a failed harvest; they signal a deepening threat to food security and livelihoods. Compounding this hardship is the growing threat of pests and diseases, many of which are fuelled by climate change. Chief among them is the fall armyworm (FAW) (Spodoptera frugiperda), an invasive pest that arrived in Africa nearly a decade ago and continues to undermine smallholder farmers’ resilience, devouring crops stalk by stalk.
Maize is central to food security in Zambia and Malawi, where it occupies up to 80% of cultivated land and accounts for over half of the daily calorie intake. In Zambia alone, more than 90% of smallholder households grow maize, underscoring its economic and political weight. Yet, in recent years, farmers have had to contend with losses not just from erratic rainfall and poor soils, but from pests and diseases that seem to multiply with each season.
A recent CIMMYT-led study across 1,100 farming households in Malawi and Zambia, as part of the Southern African Accelerated Innovation Delivery Initiative (AID-I) Rapid Delivery Hub, highlights the long-recognized challenge of FAW damage. The study confirms that FAW is not only persistent but also costly. During 2023/2024 season, 70% of surveyed farmers reported FAW damage to their maize fields. On average, FAW infestations resulted in a 13.5% to 30% reduction in maize yields, translating to more than 230 kg of lost grain per hectare. Other crops were also heavily affected, with the rosette virus reducing groundnut yields by 27% and soybean rust causing up to 25% losses in soybean fields.
The effects of FAW extend beyond crop harvests. It has also been shown to significantly undermine household income and food security. Although the 2023/2024 losses are slightly lower than earlier estimates, which ranged from 22% to 67% across Africa, they are still substantial enough to affect food security and livelihoods. Furthermore, the combined effects of FAW, rosette disease and rust had large income and food security impacts. Households facing the triple burden of these pests and diseases – FAW, groundnut rosette virus and soybean rust on their three most important crops are twice as likely to experience food insecurity as compared to experiencing just one of these threats.
In response, many farmers are turning to pesticides, improved seeds and crop rotation. However, as the data indicates, pesticides alone are far from being a comprehensive solution. They are often costly, frequently misapplied, and carry significant risks to both human and the environment. Moreover, FAW is increasingly developing resistance to commonly used pesticide formulations. Access to agricultural extension services remains limited: only 27% of surveyed farmers in Zambia and 54% in Malawi reportedly receiving such support. Without proper guidance on when and how to apply pesticides, their misuse can end up doing more harm than good.
These findings highlight a broader challenge: the urgent need for sustainable, science- and data-driven solutions that are practical for farmers. At the core of the response is a new generation of maize hybrids with tolerance to FAW. CIMMYT in collaboration with its partners using conventional breeding has developed new generation of hybrids with native genetic (non-transgenic) tolerance to FAW. The breeding process is complex, requiring years of field testing across diverse agroecological zones to ensure adaptability and performance.
In 2023, three FAW tolerant maize varieties developed by CIMMYT were officially released by the Zambia Agriculture Research Institute (ZARI) and sub-licensed to seed companies for commercialization. With support from AID-I and the CGIAR Sustainable Farming program, CIMMYT and partners are actively promoting these hybrids among smallholder farmers. The AID-I project has provided critical support to accelerate seed production of these hybrids. Zamseed and AfriSeed are leading efforts to bring these varieties to market.
Mebby Chipimo Munyemba, a proud farmer showcasing her FAW-tolerant maize field in Mazabuka, Zambia (CIMMYT)
Through the Sustainable Farming program, on-farm trials have been established across three agroecological gradients in Siavonga, Mazabuka, and Mbala districts to test the performance under farmer conditions and understand their impact on farmer outcomes. There are two treatments, which include growing the FAW-tolerant maize variety alone, and intercropping it with other legumes. Rather than assuming a one-size-fits-all solution, CIMMYT is using randomized control trials (RCTs) to assess the real-world performance of these varieties under varying conditions. The goal is not only to validate the science but to build a stronger case for scaling.
In Siavonga, where high temperatures and erratic rainfall create ideal conditions for FAW outbreaks, early results show promising benefits from using FAW-tolerant maize varieties. Preliminary foliar damage assessment indicates significantly reduced infestation levels compared to susceptible varieties. In contrast, the benefits in Mazabuka are less pronounced, while in Mbala – a cooler, higher-altitude location with lower pest pressure- no major gains have yet been observed. These location-specific findings are critical for informing hyperlocal, evidence-based policymaking. Equally important is building awareness and trust among farmers, ensuring they know these improved varieties exist and understand how to grow them applying good agronomic practices. Through AID-I, CIMMYT is working to close that gap, demonstrating the business case for investing in FAW tolerant maize seed to the private sector, and equipping farmers with knowledge that goes beyond what is in the bag.
For example, a survey carried out in Malawi, Tanzania and Zambia revealed that awareness of FAW-tolerant maize varieties remains low, with only 19% of farmers in Malawi, 34% in Tanzania and 39% in Zambia had heard of FAW-tolerant maize varieties. This underscores the urgent need to scale up awareness campaigns and initiatives to stimulate demand. Encouragingly, among the farmers who are aware of these varieties, the majority expressed a willingness to purchase them at prices comparable to those of other hybrid maize varieties. This indicates a strong business case for private sector investment in seed multiplication and distribution to meet potential demand and expand access to FAW-tolerant maize hybrids.
For many farmers in Southern Africa, the FAW remains a persistent threat. However, through science, strong partnerships, and a commitment to field-based evidence, the tide is turning, one trial, one variety, one growing season at a time.
Joe Akombaetwa shows the improved no-till multi-crop planter fitted with a T-bar and furrow kits (Photo: CIMMYT)
In Dumba Camp, a small farming community in Mazabuka District, Joe Akombaetwa is proving that even in the face of unreliable rains and poor soils, small shifts in how farmers work the land can make all the difference. A farmer since 1992, Joe has lived through the growing impacts of climate change, its frequent shocks to the rain-fed systems, and the high risks it brings to farming families in Zambia’s Southern Province. For the past five years, he has worked as one of the earliest mechanization service providers (SPs) under the European Union-funded Sustainable Intensification of Smallholder Farming Systems in Zambia (SIFAZ) project. As a SIFAZ service provider, Joe acquired a set of machinery, including a two-wheel tractor, a trailer, a multi-crop thresher, and a sheller in 2021. Since then, he has been offering paid mechanization services to farmers in his community. But more than a service provider, Joe is an innovator, a machinery fabricator, and a businessman, creating tailor-made climate-smart mechanization solutions with the support of the SIFAZ project, responding directly to the challenges faced by farmers in his community.
Grounding innovation in reality
Joe’s innovations aren’t conceived in a lab—they’re forged in the field, shaped by the lived realities of his fellow smallholder farmers. One of his earliest breakthroughs came when he collaborated with SIFAZ engineers to design a T-bar to modify the Chinese single-row, no-till multi-crop planters into a double-row planter for a two-wheel tractor, allowing simultaneous planting of two rows instead of just one.
The original single-row planters, while functional, were slow and inefficient. “We wanted to save time and get the work done faster,” Joe explains. “So, we created the T-bar so that two planters could work together in tandem.”
But the innovation didn’t stop there. Joe received feedback from the farmers on the issue of high side separation between the seed and fertilizer openers on the planter. This high side separation of about 120 mm might be useful to reduce seed burning in an irrigated system for which the planter was developed, but Joe and his client farmers in the rain-fed system noticed reduced early plant growth, evidently resulting from delayed nutrient access by young seedlings of the crops. Further, the furrow covered by the press wheels of the planter was not optimum (leaving some seeds uncovered with soil), leading to germination failures.
With his own hands and tools, together with the SIFAZ engineers, Joe redesigned the seed placement system by better aligning the seed and fertilizer openers (with 50 mm side separation) and developing a flexible seed-covering kit fitted before each press wheel on the planter. These modifications addressed what agronomists refer to as “placement efficiency”, but for Joe, it was simply about “getting the seed and fertilizer placed close to each other for the plants to access the fertilizer early and firmly cover the seeds for optimum emergence.” To further improve performance, he added a balancing bar to help stabilize the planter across uneven ground, making the machine more practical for Southern Province’s uneven terrains and varying soil textures.
Joe demonstrates his two-wheel tractor mini boom sprayer to the CIMMYT mechanization team (Photo: CIMMYT)
Bridging science with farmer-led solutions
Joe’s hands-on creativity is not new. Back in 2010, he was part of the team that co-developed an animal-drawn ripper, a widely adopted tool that aligns with Conservation Agriculture (CA) principles by reducing soil disturbance.
With a background in blacksmithing and metal fabrication from Kasisi, and early career exposure to seed certification at ACCI in Chilanga, Joe has long moved between formal agriculture and on-the-ground adaptation. Joe is aware of declining draft animals and the aging of the farmers in Zambia, which adds to the challenges faced by smallholder farmers. He sees a declining interest of rural youths in agriculture who do not want to walk behind the beasts or do labor-intensive manual work. Observing the ease with which large-scale commercial farmers operate rippers and boom sprayers, Joe wondered, “Why not adapt this to smallholder needs?”
Joe designed a double-row ripper and a mini boom sprayer for use with a two-wheel tractor. Compared to the traditional animal-drawn single-row rippers or the knapsack sprayers, the two-wheel tractor double-row ripper saves not only time, costs, and drudgery, but also makes farming interesting. “In just ten minutes, I can finish spraying a 16 m by 39 m field,” he says. It’s a leap in efficiency, and for farmers, who often juggle time, labor, and resource constraints, it’s a game-changer! Joe has sold a few rippers and boom sprayers to his neighboring farmers and different projects. The demand for the machinery is on the rise, which encourages him as a rural manufacturer.
Business with a purpose
Joe isn’t only an innovator; he’s also a sharp businessman. From ripping and planting to boom spraying and shelling maize, his mechanization services are in high demand among farmers in and around Dumba Camp. “Ripping has been the most profitable,” he notes. “Almost every farmer now wants it because of the sustainable farming practices introduced by SIFAZ.” He charges based on plot size and crop type, typically around ZMW 200–450 per hectare (approximately US$7–16) for services like no-till planting. But he also knows the realities farmers face. “Sometimes, I negotiate. I don’t want the price to scare away the farmers.” Demonstration days and field shows are his marketing lifeline. From the Cotton Development Trust-organized mechanization field days to local radio promotions, Joe has built a network of trust and visibility. He’s become a go-to name in the Dumba Camp and beyond.
Joe stands with his 80-year-old client, who, thanks to hiring the no-till soybean planting service, is able to keep his family farm running despite his children’s absence. (Photo: Md A Matin, CIMMYT)
Staying afloat in tough seasons
Last season, the El Niño-induced drought was a huge blow in farmers’ fields. Poor and uneven rainfall and economic strain slashed demand for mechanization services. But Joe stayed afloat by leaning on his farmer instincts. He didn’t sell off all his harvest, but instead, he stored 100 bags of maize and sold another 100 bags to have money for living. That food sovereignty, paired with diversified income from shelling and ripping, kept his business breathing through the drought.
A legacy in the making
Behind the machines and modifications is a father of five, two of whom are already following in his footsteps, bringing civil engineering skills into the family’s growing innovation portfolio. It’s a quiet generational shift powered by resilience, knowledge sharing, and an openness to adapt. Joe’s story reminds us that the future of farming isn’t only shaped by distant policies or global climate models, but also built, welded, and tested in the fields of Southern Zambia, where farmer-innovators like Joe bridge the gap between science and local adaptation.
Lydia Siankwede explaining her mother trial demonstration to agronomists, sharing insights and results (photo: CIMMYT)
An early morning walk across the fields in Zambia’s Southern province, one is met with maize fields infested with fall armyworm. In contrast to last season’s El Nino induced drought, and as we approached Lydia Siankwede’s field, one is met with her thriving maize and legume field, with its deep-green canopy signaling strong growth and optimal soil health in her crop.
Each morning, Lydia tends to her field with an inquisitive mind, clutching her protocol, which serves as a guide for daily tasks. The dew clings to her shoes as she inspects each plot, checking crop performance, scouting for pests, and noting observations in her trial protocol. Yet beneath this plant vigor, a silent threat lurks—fall armyworm, its larvae discreetly feeding on tender maize leaves.
Her field, which hosts a mother trial under the EU-funded Sustainable Intensification of Smallholder Farming Systems in Zambia (SIFAZ) program, is a patchwork of promising technologies. A mother trial is a farmer-managed, researcher-led experiment that serves as a central site for testing a variety of agricultural treatments under controlled conditions.
Mother trials are part of a mother-and-baby trial approach—a participatory research model designed to test and disseminate new farming technologies while involving farmers in the evaluation process. The approach involves mother trials and baby trials. Baby trials are farmer-managed trials conducted across multiple locations, usually in individual farmers’ fields. Each participant chooses a subset of treatments from the mother trial to test in their own field under specific local conditions. In these mother-and-baby trials, science meets farmer reality, and knowledge grows with every season.
Across the Southern Province, mother-and-baby trials are part of a broader research effort to develop crop intensification practices tailored to smallholder farming systems. In Kazungula Camp, where rainfall is low and erratic, the focus has been on integrating livestock and crop systems, rotating maize with fodder legumes like mucuna and lablab. In other communities, experiments are ongoing with integrating soybean into the maize-based cropping systems and intensifying them with pigeon pea and Gliricidia, both leguminous shrubs that provide fodder and enhance soil fertility. Each treatment is carefully monitored across experimental plots over several seasons to assess its effect on yields, soil health, pest pressure, and its longer-term impact in light of a changing climate.
Lydia, a hardworking farmer with 11 hectares of cultivable land, began her journey as a baby trial implementer, testing a single conservation agriculture (CA) practice in her own field. But her passion for learning and strong work ethic quickly set her apart. Within three years, she transitioned to managing a full-scale mother trial, giving her the opportunity to test a wider array and bundle of technologies across a larger plot. Today, Lydia experiments with crop rotations, intercropping, and fodder management—practices designed to boost productivity for humans, soil, and animals; build resilience; and reduce reliance on chemical inputs.
A maize–velvet bean (mucuna) rotation aimed at improving maize yield, soil fertility, and fodder production in Southern Zambia. (Photo: CIMMYT)
What do the agronomic results bring to the table?
Each season, unique by nature, has brought valuable lessons, with promising long-term results. Since 2021, more than 1,200 farmers in Kazungula Camp, including Lydia, have adopted CA-based crop rotations beyond the trials. While yield gains for maize and legumes are not always immediate, economic analyses consistently show that CA systems generate higher returns compared to conventional tillage systems with sole maize cropping. This proved especially important in years such as 2023/24, when rainfall barely reached 373 mm due to an unprecedented El Niño year. In Kazungula, trials on maize–mucuna strip cropping and maize–lablab rotations showed resilience, with farmers expressing strong interest in growing more fodder and advancing seed multiplication for these crops.
Her reality on-farm
For Lydia, these trials are more than research—they are a valuable tool for transformation. What impressed her most was the maize–lablab rotation. “It’s a game changer for me,” she says. “Lablab suppresses weeds, improves the soil, and even the leaves and pods are useful to eat as relish.” Although lablab is primarily cultivated as animal feed, Lydia’s family has started to enjoy lablab as part of their diet, reducing food costs and increasing nutrition.
In addition, the strip cropping of alternating four rows of narrowly planted maize with four legume rows has also impressed her, especially in terms of weed management. “Weeds are easier to manage, and although armyworm damage is present, it is not destructive,” she explains.
Her determination has grown with each season. Last year, Lydia harvested just 50 bags of maize from scattered parts of her trial field. But instead of pulling back, she leaned in. This season, with better planning and deeper knowledge, she expects to harvest up to 300 bags—enough to feed her household of seven and still have a surplus to sell.
Lydia’s story highlights how participatory research can empower farmers to lead change from the ground up. With access to the right knowledge, support, and tools, she is not merely surviving uncertain seasons—she is farming with purpose.
Milton Malama is a consultant specializing in community outreach and interventions at the International Maize and wheat Improvement Center (CIMMYT). Based in Zambia, he has eight years of experience working with international agricultural organizations as well as government.
Milton holds a BSc in Agricultural Economics from the university of Zambia and a Collaborative MSc in Agricultural and Applied Economics from Makerere University and the University of Pretoria. His career extends from academic roles in Uganda and applied research across multiple projects in Zambia. As a support staff at Makerere University, he taught courses on Agricultural Commodity Marketing and Small and Medium Business Enterprise Development. His research interests are water management, smallholder agriculture, economic valuation of natural resources, and rural development.
Cynthia Chibebe is the Qualitative Research Specialist-Consultant at CIMMYT, working on the Atubandike initiative in Zambia. She has over six years of experience in both qualitative and quantitative research.
Cynthia holds a BSc in Agricultural Economics from the University of Zambia. She has contributed to research projects with organizations such as March Associates, Palm Associates, American Institutes for Research, and ACDI/VOCA. She has co-authored a paper on food and nutrition security which reflects her commitment to generating evidence-based insights that support agricultural and development initiatives in Zambia and beyond.
Cleopatra Kawanga serves as the lead for the implementation of Atubandike digital advisory tool under AID-I project at CIMMYT based in Lusaka. In this role, she works on dynamic content creation for the Viamo 667 platform, an interactive service where farmers can access timely agricultural advice on diverse farming topics. Her primary focus is ensuring that farmers have continued access to relevant agricultural information. She is dedicated to promoting inclusive e-extension approach that bridges the information gap for farmers regardless of gender, age, or location to improve agricultural productivity.
Cleopatra holds a Bachelor of Science degree from the University of Zambia and a Master of Science degree from Sokoine University of Agriculture. Her career path is in food and nutrition security. She has over 6 years of experience in work that supports food and nutrition security among smallholder farmers in Zambia.
Brian Njoroge is a Policy Analysis and Project Sustainability Plan Associate for the International Maize and Wheat Improvement Center (CIMMYT) with 4 years of experience in policy research.
He is currently undertaking an MA. in Research and Public Policy and has attained a BA. in Political Science from the University of Nairobi, Kenya. Having served at the Kenya School of Government; a training and policy advisory institution in Kenya, Brian has undertaken policy analysis and business model development for both public and private sector.
Brian Mpande is a consultant specializing in quantitative research at the International Maize and Wheat Improvement Center (CIMMYT), he also plays a coordination role for the Atubandike program. Based in Zambia, he has over six years of experience in agricultural research.
Brian holds a BSc in Agricultural Economics from the University of Zambia and an MSc in Agricultural Economics from the University of Pretoria. His professional background covers both academic roles in South Africa and Zambia, as well as applied research in agriculture and health in Zambia. As a teaching assistant, he contributed to courses on Environmental Valuation and Policy as well as the Fundamentals of Macroeconomics. His research interests include climate-smart agriculture technology adoption, with a particular focus on conservation agriculture. He is also passionate about impact assessment and digital inclusion.
Established in August 2023 and convened by CIMMYT’s Dryland Crops Program (DCP), ADCIN is a collaborative network uniting over 200 scientists from more than 17 countries across sub-Saharan Africa. Its mission is to create a dynamic and sustainable community to develop and deliver improved varieties of dryland crops in the region. By leveraging the collective expertise of its multidisciplinary members, ADCIN strives to accelerate the access of enhanced crop varieties to smallholder farmers.
Through this partnership, ZARI has modernized its facilities and practices, creating a model for agricultural innovation in Eastern and Southern Africa. These advancements reflect a powerful vision of enhancing the capacity of breeding programs, improving crop resilience, and boosting food security for communities across the continent.
The Challenges of Transformation
Historically, ZARI faced significant challenges that limited its potential. As Lloyd Mbulwe, Acting Chief Agriculture Research Officer at ZARI, recalls:
“We faced research-related hurdles, from outdated lab facilities and inefficient irrigation systems to limited digital infrastructure and insufficient seed storage.”
These issues hindered not only ZARI’s ability to innovate but also its capacity for collaboration with regional and international partners.
With limited resources, ZARI was unable to meet the demand for high-quality, consistent research and innovation. Data collection was often manual, errors were common, and collaboration was difficult. The lack of modern infrastructure restricted the scope of experiments and the institute’s ability to respond to critical regional issues such as climate change and food insecurity.
A New Era of Modernization and Strategic Partnerships
In partnership with ADCIN, ZARI has received targeted funding and technical support, enabling transformative upgrades across its infrastructure that are redefining its research capabilities.
“The upgrades have reshaped our research capabilities,” Mbulwe explains. “With new equipment, enhanced data management systems, and a suitable greenhouse, we’re conducting better plant breeding experiments that directly address the region’s target product profiles.”
In July 2023, CIMMYT’s Dryland Crops Program conducted breeding program assessments of ZARI’s Golden Valley location, where the national institute’s sorghum and millets breeding programs are being conducted. Mark Nas, CIMMYT’s Sorghum and MilletsBreeder for Eastern and Southern Africa, describes ZARI’s program as, “a high-potential program composed of talented and dedicated researchers and technicians, but in need of significant infrastructure upgrades if they are to meaningfully contribute to the shared regional breeding pipelines.”
With a subaward granted to ZARI by the end of 2023, Mbulwe and his team quickly worked on implementing the suggested improvements from the program assessments. Key upgrades include a greenhouse facility for speed breeding and controlled drought research, allowing researchers to rapidly produce lines for regional trials, while evaluating regional materials for drought tolerance. Enhanced water storage and solar power installations now enable uninterrupted research, even during power outages, a frequent challenge in this region. Transitioning to Starlink internet has also strengthened ZARI’s capacity for regional and international collaboration, and real-time data delivery, bridging communication gaps and enabling seamless data sharing.
Boosting Capacity for Impact
The new facilities have transformed ZARI’s capacity for impactful research. Rapid generation advance techniques, where breeding populations are quickly advanced through successive selfing generations, allow ZARI researchers to conduct multiple plantings within a year—dramatically boosting progress in line development.
Additionally, the upgrades also enable off-season research through the ZAMGRO Project, which has expanded water storage capacity from 45 cubic meters to an impressive 3,600,000 cubic meters. With year-round breeding, farming and water management research are now possible, giving ZARI an edge in breeding programs.
Mbulwe shares how automated data collection systems and standardized procedures have further improved the precision and reproducibility of ZARI’s research. “Our teams are now equipped to produce high-quality data leading to actionable results,” he says. “These improvements ensure the quality of outcomes and make our processes more efficient.”
A Vision for the Future
Looking ahead, ZARI plans to scale its research impact by establishing a Center of Excellence for Climate-Smart Agriculture and establishing a biotechnology lab to advance genetic improvement. Expanding greenhouse and irrigation systems, as well as enhancing digital infrastructure for data management, are key priorities. ZARI also aims to strengthen public-private partnerships to bridge the gap between research and practical applications for farmers across Zambia and beyond.
Inspiration and Best Practices for Other NARES Institutions
ZARI’s success story serves as an inspirational blueprint for other National Agricultural Research and Extension Systems (NARES) institutions. Through strategic partnerships, targeted investments in infrastructure, and an emphasis on capacity building, ZARI has shown what is possible when organizations and their leaders commit to modernizing and adapting to the evolving challenges of agriculture.
From irrigation upgrades to energy-efficient, solar-powered facilities, ZARI’s best practices are setting the stage for similar projects in other regions. “We’ve demonstrated that modernization can make a profound difference in NARES breeding programs,” says Dr. Mbulwe. “It’s about leveraging every resource to upgrade our plant breeding capabilities to address the challenges that climate change and food security bring to our region.”
The Role of ADCIN in Agricultural Innovation
ADCIN has been instrumental in supporting this transformation. Through its technical assistance, funding, and strategic guidance, ADCIN has empowered ZARI and other NARES institutions to elevate research standards across Africa. By aligning investments with regional research priorities, ADCIN not only supports individual institutions but also strengthens agricultural networks on a continental scale. Harish Gandhi, Associate Director of CIMMYT’s Dryland Crops Program, states, “We are operating in a new and transformative model of working with our partners. We want our partners to be resourced to succeed.”
ADCIN’s efforts to enhance research capacity, foster collaboration, and improve governance have seen significant returns. “This partnership has made ZARI a stronger institution,” Mbulwe asserts. “Our research output, regional partnerships, and access to funding have all grown. ADCIN’s support reaffirms its commitment to advancing the excellence of regional breeding and other research in dryland crops across Africa.”
Take-Home Message
ZARI’s journey is a prime example of the power of strategic investment, collaboration, and a shared commitment to addressing climate and food security challenges by building the capacity of national programs through equitable subawards. As it continues to innovate, ZARI remains a symbol of progress for agricultural research across Sub-Saharan Africa. With support from ADCIN, ZARI’s advancements signal a brighter, more resilient future for African dryland crops agriculture—one rooted in science, collaboration, and the promise of food security for all.
Victor Munakabanze in his field sharing his scaling story with scientists and district agriculture officers (Photo: CIMMYT)
Each annual field tour offers a fresh perspective on the realities farmers face. It’s a window into how different agroecological conditions shape farming experiences and outcomes, revealing what works in farmers’ fields and what doesn’t under an increasingly unpredictable climate.
This year, in Zambia’s Southern Province, the story is promising, as good rains have set the foundation for a favorable crop—a stark contrast to the past season, marked by the El Niño-induced drought.
In the Choma district’s Simaubi camp, Conservation Agriculture (CA) trials paint a picture of resilience and adaptation. The area experiences a semi-arid climate with erratic rainfall averaging 600–800 mm annually, often prone to dry spells and drought years, such as the last, when only 350–400 mm were received. The soils are predominantly of sandy loam texture, with low organic matter and poor water retention capacity, making them susceptible to drought stress.
The area around Simaubi hosts seven mother trials, where a wide range of technologies are tested, and 168 baby trials, where a subset of favored technologies are adapted to farmers’ contexts. Each trial tests different maize-legumeintercropping and strip cropping systems against conventional tillage-based practices. As adoption steadily rises, more farmers are experiencing firsthand the benefits of sustainable intensification.
A Champion in the Making
Meet Victor Munakabanze, a farmer with decades of experience and a passion for learning. He began his CA journey as a baby trial implementer, experimenting with the four-row strip cropping system on a 10 m by 20 m plot, with four strips of ripped maize and four strips of ripped groundnuts. Starting in the 2020/21 season—despite a slow start—he persevered. Instead of giving up, he and his wife embarked on a learning journey that led them to scale up and champion CA technologies in their community.
Victor has been part of CA trials under the Sustainable Intensification of Smallholder Farming Systems in Zambia (SIFAZ) project in the Southern Province for five years and has seen the power of small steps in driving change. His initial trial plots sparked hope, showing him that improved yields were possible even under challenging conditions. Encouraged by these results, he expanded his CA practices to a 1.5-hectare plot during the 2024/2025 cropping season, investing in his farm using income from goat sales. He successfully integrated livestock within the cropping system, using goat manure to complement fertilizers—an approach that has not only improved soil fertility but also strengthened the farm’s sustainability.
From Experimentation to Expansion
Victor’s decision to adopt CA at scale was driven by tangible results. He found that intercropping maize and groundnuts in well-spaced rip lines could optimize overall yields better than conventional methods.
However, the transition wasn’t without challenges. In the first season, he started late and harvested little. The following year, delayed planting resulted in just four bags of maize from the 200 m². The El Niño event during the 2023/24 season wiped out his harvest completely. But through each setback, he refined his approach, improving his planting timing and weed management by incorporating herbicides when needed.
Now, his farm serves as a learning hub for fellow farmers from the surrounding community in Simaubi camp. They are drawn in by his success, curious about his planting techniques, and impressed by his ability to integrate crops and livestock. With 23 goats, a growing knowledge base, and a determination to share his experience, Victor embodies the spirit of farmer-led innovation. His story is proof that CA can be practiced beyond the trial plots—it is about ownership, adaptation, and scaling what works.
Inspiring Adoption, One Farmer at a Time
Victor’s journey highlights a crucial lesson: when farmers see the benefits of CA on a small scale, they are more likely to adopt and expand these practices on their own. His resilience, coupled with a keen eye for what works, has made him a role model in his community. From testing to real-world application, his success is growing evidence of the replicability of CA technologies. As adoption spreads, stories like Victor’s pave the way for a future where sustainable farming is not just an experiment—but a way of life.
