@ARTICLE {HULUGALLE:1991,
title = {Effect of cassava-based cropping systems on physicochemical properties of soil and earthworm casts in a tropical Alfisol},
author = {Hulugalle, N. and Ezumah, H. C. },
journal = {Agriculture, Ecosystems and Environment},
year = {1991},
volume = {35},
number = {1},
pages = {55--63},
issn = {0167-8809},
note = {RTB; Root and Tuber; Cassava},
}