(Journal of Agronomy, 2008) Yusuf, A. A.; Abaidoo, R. C.; Iwuafor, E.N.O.; Olufajo, O. O.
This study was designed to evaluate N2-fixation and N balance of improved cowpea and soybean genotypes in the NGS of Nigeria. Field experiments were conducted in 2003 and 2004 to assess .........