2.5 tonnes

The project aims to increase maize-legume productivity and reduce production risk by 30 percent for 650, 000 farming households by 2023. Farmers have also been supported by the project through agriculture knowledge exchange forums known as innovation platforms, to take part in variety selection trials for maize and legume seeds. Thus, drought-tolerant maize lines and legume and fodder varieties more resilient to climate change and suited to the SIMLESA conservation practices have been selected and scaled out, says Goshime Muluneh, a researcher at the Ethiopian Institute of Agricultural Research, Ethiopia’s SIMLESA partner organisation. “The main purpose of including farmers in the variety selection trials was to understand what they needed from the seeds,” says Muluneh. “We were then able to screen and produce seed varieties according to the farmers’ selected criteria.” Ferdinand Makhanu, a smallholder from Kenya, says because of skills learnt during CA techniques demonstration in 2010 held by the Kenya Agriculture and Livestock Research Organisation on his neighbour’s farm, he adopted spraying herbicide on his 0.8 hectare farm instead of ploughing, dug holes only in seed-planting spots to reduce soil disturbance and retained crop residues to facilitate soil nutrient retention.

With traditional farming practices, Makhanu says, his harvest was limited to six bags of maize, and less than one bag of beans. The CA- based techniques have increased his harvest to 30-35 bags of maize per acre, and he predicts yields increase as crop residues improves the organic matter in the soil. He no longer hires farm labour to plough, thus cutting labour costs by about 60 per cent. His diversified productions include more nutritive legume crops such as pigeon peas, lablab, velvet beans, soybean and cowpeas.

Through the project, over 40 new farmer-selected maize varieties have been released, which have been found to yield 30-40 percent more than traditional seeds under drought conditions, and 20-25 per cent more under optimum conditions, says Mulugetta Mekuria, SIMLESA project leader and a senior scientist and regional representative at International Maize and Wheat Improvement Center, Zimbabwe.

“In Kenya, farmers are working closely with scientists to identify higher-yielding and stress-tolerant varieties for high- and low- potential agro-ecological zones,” says Charles Nkonge, country coordinator for SIMLESA-Kenya.

“Farmers have achieved maize and bean yields of 4.5 and 2.5 tonnes per hectare respectively, compared to 1.6 and 0.6 tonnes per hectare before the project.” In Ethiopia, data gathered from 900 farming households shows that the adoption of CA has increased net maize income by up to 35 percent. Incomes increased further when such practices were combined with complementary inputs including improved seed varieties. Goshime Muluneh, a farmer from Ethiopia, says scaling up conservation agriculture is the next crucial step.

“The government needs to implement CA practices. If it does not promote conservation agricultural practices, farmers simply won’t get the benefits,” Muluneh explains.

According to Richard Munang, coordinator of UN Environment Programme Africa Regional Climate Change Programme, SIMLE

SA project is an intervention maximising Africa’s farm-level productivity. “It not only builds climate resilience by safeguarding soil health, but it is compatible with the approaches used by smallholder farmers in Africa who produce up to 80 percent of the food on the continent,” he tells “Industrialising Africa’s CA will potentially cut postharvest losses accounting for up to US$48 billion each year, and potentially reverse the

Inclusion of farmers in the variety selection trials is important as end-user feedback is always a critical aspect in ensuring research and development that responds to potential user priorities. To reap maximum benefits, policymakers across various complementary ministries should prioritise harmonising their policies to scale up CA from farm-level production to the entire value chain to build sustainable agro-industries, Munang says. Jonathan Muriuki, Kenya country representative of the World Agroforestry Center, says conservation agriculture has been proven to increase productivity in pilot projects across the world. But CA presents challenges to farmers mainly from weed management and competition for biomass required to be used for soil cover and livestock feed at the same time. Muriuki says continuing scientific investigations are geared towards overcoming these challenges

“Use of conservation agriculture as well as intercropping of cereals and legumes, even enhanced by inclusion of trees, is a winner for current and future generations,” Muriuki says. Farmers are the main investors in agriculture and expend their land, labour and management skills in agricultural production while informed by specific objectives.

In principle, there are gains in labour savings as well as productivity increases but the main challenge to smallholder farmers is a change of mindsets to adopt reduced till approaches, especially those involving judicious use of herbicides and access to the specialised equipment necessary for production efficiency.

“Use of conservation agriculture as well as intercropping of cereals and legumes, even enhanced by inclusion of trees, is a winner for current and future generations,” Muriuki says. Farmers are the main investors in agriculture and expend their land, labour and management skills in agricultural production while informed by specific objectives. - SCIDEVNET