Hummingbird Journal of Environmental Design & Construction Management (HUJECM) Vol. 19 (4) December, 2019. ISSN: 2278-8892 Published by: Hummingbird Publications and Research International, Centre for Trans-Saharan Studies, University of Maiduguri, UNIMAID, Maiduguri, Borno State, Nigeria. E-MAIL: hummingbirdpublications@gmail.com PHONE: +234-802-5604-997 Indigenous Knowledge of Integrated Soil Fertility Management in Kafanchan and […]