@INPROCEEDINGS {OYEWOLE:2000, title = {On-farm testing of Mucuna and cowpea double cropping with maize in the Guinea savanna of Nigeria}, author = {Oyewole, B. and Carsky, R. }, booktitle = {Cover crops for natural resource management in West Africa = Plantes de couverture et gestion des ressources naturelles en Afrique occidentale: proceedings of a workshop organized by IITA and CIEPCA, Cotonou, Benin, 26-29 October 1999. Ibadan, Nigeria}, year = {2000}, pages = {138--147}, }