@ARTICLE {CHIKOYE:2004c, title = {Suppression of speargrass (Imperata cylindrica) in maize using sweetpotato and two leguminous cover crops}, author = {Chikoye, D. and Ekeleme, F. and Gbehounou, G. }, journal = {Nigerian Journal of Weed Science}, year = {2004}, volume = {17}, pages = {35--42}, note = {RTB; Root and Tuber; Sweetpotato}, }