@ARTICLE {KANG:1981, title = {Effect of mound size and fertilizer on white guinea yam (Dioscorea rotundata) in southern Nigeria}, author = {Kang, B. and Wilson, J. E. }, journal = {Plant and Soil}, year = {1981}, volume = {61}, pages = {319--327}, note = {RTB; Root and Tuber; Yam}, }