Soil fertility evaluation: a potential tool for predicting fertilizer requirement for crops in Nigeria
A. K. NAFIU1*, M. O. ABIODUN2, I. M. OKPARA3 and V. O. CHUDE1
1National Programme for Food Security, Federal Ministry of Agriculture, Abuja, Nigeria.
2Laboratory of Plant Nutrition, Department of Bioscience and Biotech, Kyushu University, Japan.
3Department of Soil Science, University of Nigeria, Nsukka, Enugu State, Nigeria.
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