Adaptation of tropical forage species to acid soils : the influence of varying phosphorus supply and soil type on plant growth
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
Leaf Phosphate Status, Photosynthesis, and Carbon Partitioning in Sugar Beet (IV. Changes with Time Following Increased Supply of Phosphate to Low-Phosphate Plants)
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