ALIYU UMARU JARENGOL. Biochar and Biochar-Compost Effects on Soil Quality and Maize (Zea mays L.) Performance in Mubi, Northern Guinea Savannah of Nigeria. Journal of Biotechnology and Agricultural Research, Nigeria, v. 13, n. 1, 2026. DOI: 10.70382/ajbar.v13i1.037. Disponível em: https://africanscholarpub.com/ajbar/article/view/1614.. Acesso em: 11 nov. 2026.