ALIYU, A.; MADUKWE, D. K. .; MEKA, I. N. .; OJENIYI, K. A. . 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, [S. l.], v. 7, n. 1, p. 20–33, 2026. DOI: 10.62773/jcocs.v7i1.372. Disponível em: https://jcocs.com/index.php/ej/article/view/372. Acesso em: 30 apr. 2026.