@PROCEEDINGS {KANG:1980j, title = {Evaluation of some major soils from southern Nigeria for cassava production}, author = {Kang, B. T. and Okeke, J. E. }, booktitle = {First Triennial Root Crops Symposium, Ibadan, 8-12 September}, year = {1980}, note = {RTB; Root and Tuber; Cassava}, }