@PROCEEDINGS {KANG:1975d,
title = {Interaction of fertilizer use on cowpea (Vigna unguiculata(L.) walp) and Soybean (Glycine max. (L.) Merrill) Nodulation and Nitrogen fixation in the lowland tropics},
author = {Kang, B. T. and Nangju, D. and Ayanaba, A. },
booktitle = {Presented at the Conference on Biological Nitrogen Fixation in Farming System of the Humids Tropics},
year = {1975},
}