Widowati W, Wilujeng R, Nurhidayati N, Indrayatie ER. Improvement of N, P, and K availability of post-brick mining soil to increase maize yield by applying different types of biochar . J. Degrade. Min. Land Manage. [Internet]. 2024 Jan. 1 [cited 2025 Jun. 21];11(2):5319-27. Available from: https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/12599