Aliyu, A., D. K. . Madukwe, I. N. . Meka, and K. A. . Ojeniyi. “Effect of Triple Superphosphate (TSP) Fertilizer Rates on Cowpea Growth and Yield under Irrigation: A Case of Lowland Area, Sokoto State, Nigeria”. Journal of Current Opinion in Crop Science, vol. 7, no. 1, Mar. 2026, pp. 20-33, doi:10.62773/jcocs.v7i1.372.