Non-Responsiveness of Maize and Soybean Crops to Inorganic Fertilizers: Assessing Probabilities and Understanding Biophysical Causes Across African Agro-Ecosystems.
Dries Roobroeck, Natural Resource Management Unit, International Institute of Tropical Agriculture (CGIAR), Nairobi, Kenya, Generose Nziguheba, P.O.Box 30772-001000, International Institute of Tropical Agriculture-Nigeria, Nairobi, KENYA, Bernard Vanlauwe, PO Box 30722, International Institute of Tropical Agriculture, Nairobi, Nairobi, KENYA and Cheryl A. Palm, Agricultural and Biological Engineering, University of Florida, Gainesville, FL, UNITED STATES