EFFECT OF NPK AND POUTRY MANURE ON POPULATION OF RHIZOBIA BACTERIA, GROWTH AND YIELD OF COWPEA
ABSTRACT The attendant low yield of cowpea among smallholder farmers has increased the need for site specific fertilizer recommendation and integration of biological materials to increase the yield of the crop. The effectiveness of applied fertilizer is constrained by the use of the in appropriate rate and improper timing of ...
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