Improving the Profitability, Sustainability and Efficiency of Nutrients Through Site Specific Fertilizer Recommendations in West Africa Agro-Ecosystems Volume 1 - Bationo, Andre; Bationo, Andre; Ngaradoum, Djimasbé; Ngaradoum, Djimasbé; Youl, Sansan; Youl, Sansan; Lompo, Francois; Lompo, Francois; Fening, Joseph Opoku; Fening, Joseph Opoku (Springer International Publishing : Imprint: Springer, 2018)