@ARTICLE {RANDALL:2006, title = {Mineral nutrient uptake and removal by cowpea, soybean and maize in West Africa, and implications for carbon cycle effects on soil acidification}, author = {Randall, P. and Abaidoo, R. and Hocking, P. and Sanginga, N. }, journal = {Experimental Agriculture}, year = {2006}, volume = {42}, number = {4}, pages = {475--494}, issn = {0014-4797}, }