Scaling-up and-out fertilizer microdosing and Warrantage or inventory credit system to improve food security and farmers income in West Africa - Tabo, Ramadjita; Bationo, B. André; Amadou, B.; Lompo, F.; Gandah, M.; Hassane, O.; Fatondji, D.; Sako, K.; Ndjeunga, J.; Koala, Saidou (African Network for Soil Biology and Fertility, 2007)