@INBOOK {BERKHOUT:2016, title = {Smallholder management of diverse soil nutrient resources in West Africa economics and policy implications}, author = {Berkhout, E. D. and Franke, A. C. * and Abdoulaye, T. }, editor = {Lal, R. and Stewart, B. A. }, year = {2016}, type = {In: Advances in Soil Science: soil-specific farming precision agriculture, edited by Lal R.; and Stewart, B.A.}, pages = {127--154}, chapter = {5}, publisher = {CRC Press}, address = {London, UK}, isbn = {978-1-4822-4533-2}, note = {WAHub; Limited Access}, }