Observations on Palm Bunch ash Effects on Cowpea Growth and Characteristics of a Ghana Acid Soil . Journal of Science and Technology, [S. l.], v. 13, n. 3, 2016. DOI: 10.4314/just.v13i3.995. Disponível em: https://journal.knust.edu.gh/index.php/just/article/view/995. Acesso em: 11 jun. 2026.