Enhancing the contribution of the legumes to the N-fertility of soils of the semi-arid zone of Nigeria
D. A. Machido1, O. O. Olufajo2 and S. E. Yakubu1 and S. S. Yusufu3
1Department of Microbiology, Ahmadu Bello University, Zaria, Kaduna State, Nigeria.
2Department of Agronomy, Ahmadu Bello University, Zaria, Kaduna State, Nigeria.
3Center for Biotechnology, Ahmadu Bello University, Zaria, Kaduna State, Nigeria.
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