@INPROCEEDINGS {F. Salako:2000, title = {Conservation of a tropical alfisol using legume cover crop intercropping and residue mulch}, author = {Salako, F. K. and Kirchhof, G. and Tian, G. }, booktitle = {Proceedings of the 5th Conference of the International Soil Tillage Research Organization (ISTRO), Fort Worth, Texas, USA, 2-7 July}, year = {2000}, note = {CD-ROM}, }