@ARTICLE {EZUMAH:1987c,
title = {Maize-cowpea intercropping as affected by nitrogen fertilization},
author = {Ezumah, H. C. and Nam, N. K. and Walker, P. },
journal = {Agronomy Journal},
year = {1987},
volume = {79},
number = {2},
pages = {275--280},
issn = {0002-1962},
note = {CRP Maize; Maize; CRP Grain Legumes; Cowpea},
doi = {10.2134/agronj1987.00021962007900020020x},
}