Phosphorus benefits from grain-legume crops to subsequent maize grown on acid soils of southern Cameroon
Patterns of participation in farmers' research groups: lessons from the highlands of Southwestern Uganda
Mineral nutrient uptake and removal by cowpea, soybean and maize cultivars in West Africa, and implications for carbon cycle effects on soil acidification
Indicators of soil quality: a South-South development of a methdological guide for linking local and technical knowledge
Farmer evaluation of improved soybean varieties being screened in five locations in Kenya : Implications for research and development
