Spatial Information Application for Optimization of Fertilizer Use in Africa.
Charles S. Wortmann, Keim 369, University of Nebraska - Lincoln, Lincoln, NE, Alex Verlinden, CABI-AfSIS, Nairobi, Kenya, Markus G Walsh, AfSIS, Columbia University, Nairobi, Kenya and Lydia Wairegi, CABI, Nairobi, Kenya