@ARTICLE {UDENSI:2005, title = {Effect of level and source of shade on the biomass of speargrass in Nigeria}, author = {Udensi, U. and Chikoye, D. and Ogunyemi, S. }, journal = {African Crop Science Journal}, year = {2005}, volume = {13}, number = {2}, pages = {153--162}, issn = {1021-9730}, }