PRATIWI, Gagad Restu; NURRAHMA, Arinal Haq Izzawati. Biochar and Humic Substances Roles for Nitrogen Transformation in Agriculture. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 13, n. 4, p. 1442–1452, 2024. DOI: 10.23960/jtep-l.v13i4.1442-1452. Disponível em: https://jtep.fp.unila.ac.id/index.php/JTP/article/view/9058. Acesso em: 10 jul. 2026.