@ARTICLE {HULUGALLE: 1994b, title = {Changes in surface soil properties of a no-tilled tropical Alfisol due to intercropping maize, cassava and egusi melon}, author = {Hulugalle, N. and Ezumah, H. C. and Leyman, T. }, journal = {Field Crops Research}, year = {1994}, volume = {36}, pages = {191--200}, note = {RTB; Root and Tuber; Cassava}, }