TRIPURA, PRADIP, VERMA, RAJHANS and KUMAR , SUNIL 2016. "EFFECT OF POTASSIUM HUMATE AND BIO-INOCULANTS ON COWPEA [Vigna unguiculata L. WALP] INFLUENCE OF SOIL FERTILITY, ENZYMATIC ACTIVITY AND MICROBIAL POPULATION IN SOIL ." International Journal of Agriculture Sciences 8(53):2638-2641.