Abdulmajid Ahmed Nalule, Mansur Abdul Mohammed. Effects of biochar on some soil fertility parameters in Malumfashi local government area, Katsina State, Nigeria. JOBASR [Internet]. 2026 Jun. 17 [cited 2026 Jul. 8];4(3):175-84. Available from: https://jobasrfudutsinma.com/index.php/ojs-files/article/view/469