@INBOOK {OGOKE:2001, title = {Maize yield following phosphorus-fertilized soybean in the Nigerian Guinea savanna}, author = {Ogoke, I. * and Carsky, R. and Togun, A. * and Dashiell, K. }, editor = {Badu-Apraku, B. and Fakorede, M. and Ouedraogo, M. and Carsky, R. }, year = {2001}, type = {Impacts, challenges and prospects of maize research and development in West and Central Africa: proceedings of a Regional Maize Workshop, 4-7 May 1999}, pages = {205--213}, publisher = {WECAMAN; International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria}, }