Bala, A. G. .; Hassan, M. R. .; Tanko, R. J. .; Amodu, J. T. .; Bello, S. S. .; Ishiaku, Y. M. .; Mijinyawa, M. A. . PROFITABILITY ANALYSIS OF TWO FORAGE COWPEA VARIETIES AS INFLUENCED BY IRRIGATION INTERVALS AND PHOSPHORUS APPLICATION RATES IN ZARIA-NIGERIA. NJAP 2024, 35-39.