The costs of soil nutrient depletion in Ghana and Sub-Saharan Africa

Drechsel, P.; Gyiele, L. A. 2001. The costs of soil nutrient depletion in Ghana and Sub-Saharan Africa. Paper presented at the International Conference on Managing Soil Resources of the Tropics for Sustainable Agricultural Productivity, Tamale, Ghana, 26 February 2 March 2001. 7p.