The technology was developed in collaboration with farmers in the Teso farming system of Uganda. It comprises of the development of appropriate animal-drawn implements, primarily for weeding but also for ridging (sweet potatoes), line planting and lifting (groundnuts). These implements are now being manufactured locally. Impact assessments showed that adoption of the technologies and techniques increases gross margins (2005), contributes to increased yields and reduces drudgery, which is of particular importance to women and children who were previously responsible for providing most of the weeding labour.