The role of research institutions in seed-related disaster relief: Seeds of Hope experiences in Rwanda
Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone
Rhizobial populations in soils from natural Acacia senegal and Acacia nilotica forests in Mauritania and the Senegal river valley
Resource flows and nutrient balances for crop and animal production in smallholder farming systems in Eastern Uganda
Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status