Effect of different planting patterns in okra (Abelmoschus esculentus) cowpea (Vigna unguiculata L. Walp ) intercropping on growth and yield of base and intercrop in sandy regosol
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Effect of different planting patterns in okra (Abelmoschus esculentus) cowpea (Vigna unguiculata L. Walp ) intercropping on growth and yield of base and intercrop in sandy regosol
