Aliyu Umaru Jarengol 2026. 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. 13, 1 (Sep. 2026). DOI:https://doi.org/10.70382/ajbar.v13i1.037.