@ARTICLE {OSUNDE:2003, title = {Residual benefits of promiscuous soybean to maize (Zea mays L.) grown on farmers' fields around Minna in the southern Guinea savanna zone of Nigeria}, author = {Osunde, A. O. * and Bala, A. * and Gwam, M. * and Tsado, P. * and Sanginga, N. and Okogun, J. }, journal = {Agriculture, Ecosystems and Environment}, year = {2003}, month = {December}, volume = {100}, number = {2-3}, pages = {209--220}, issn = {0167-8809}, }