Adaptive attributes of tropical forage species to acid soils I. Differences in plant growth, nutrient acquisition and nutrient utilization among C4 grasses and C3 legumes
Soil degradation and crop productivity research for conservation technology development in Andean hillside farming : Project No.91.7860-01.112
The Pan-Africa Bean Research Alliance (PABRA) : Strengthening collaborative bean research in Sub-Saharan Africa, 1996 -2000
Improved legume-based feeding systems for smallholder dual-purpose cattle production in tropical Latin America : Project proposal