Weeds are often thought of as a nuisance, but in climate-smart agriculture they have a valuable role to play! Alongside the residue of crops and other plant materials, weeds are cut or pulled up and laid on top of the land as a form of mulch. Mulch is another type of ground cover that helps protect soil by minimising impacts of big raindrops and conserving moisture. Weeding is lighter work than digging, and whole families can help! Meanwhile, other organic materials like crop residues, leaves and grasses, and household food waste are made into a rich compost.
Farmers may also add animal manure to the compost. To make sure that all farmers have access to animal manure, Tiyeni organises a livestock pass-on programme of pigs or goats to first-time farmers. Animal offspring are passed on to other members of the community, contributing to Tiyeni’s legacy effect that ensures our work is self-sustaining in communities after our departure. Farmers’ interest in the successful breeding programmes brings village communities together and increases uptake of Tiyeni’s methods.
Mulch and compost add valuable organic matter to the soil that promote healthy soil microbiomes. They also enable farmers to transition away from synthetic fertilisers by providing the soil and plants with the necessary nutrients for healthy growth. Transitioning from synthetic fertiliser to mulch and compost also benefits farmers economically, as synthetic fertilisers are expensive. Plus, some of the methods that Tiyeni teaches to farmers can produce compost that is ready for use in as little as 21 days!