@ARTICLE {GICHURU:1991,
title = {Residual effects of natural bush, Cajanus cajan, and Tephrosia candida on the productivity of an acid soil in southeastern Nigeria},
author = {Gichuru, M. },
journal = {Plant and Soil},
year = {1991},
volume = {134},
number = {1},
pages = {31--36},
issn = {0032-079X},
note = {(Also published as Pages 417-422 in Plant-soil interactions at low pH, edited by R.J. Wright, V.C. Baligar, and R.P. Murrmann, Kluwer Academic Publishers, Dordrecht, the Netherlands.)},
}