@ARTICLE {KANG:1981g,
title = {Fertilizer management for no-tillage crop production. WAWSS/WSS symposium on no tillage crop production in the tropics, August 3-7, WARDA, Monrovia, Liberia},
author = {Kang, B. and Messan, A. D. },
year = {1981},
month = {August},
}