IWANTHIKA, G.; SERAN, T. H. Yield Response of Cowpea (Vigna unguiculata L.) to Poultry Waste Application With Different Rates of Potassium and Phosphorus Inorganic Fertilizers. International Journal of Environment, [S. l.], v. 12, n. 2, p. 71–82, 2023. DOI: 10.3126/ije.v12i2.65437. Disponível em: https://nepjol.info/index.php/IJE/article/view/65437. Acesso em: 19 oct. 2024.