KARBEKA, Martasiana; LEMA, Agnes; PADALEGI, Jublina. MICROSTRUCTURAL CHARACTERIZATION OF BIOCHAR–CHITOSAN COMPOSITES LOADED WITH NITROGEN AND Fe FOR SLOW-RELEASE FERTILIZER APPLICATIONS. Walisongo Journal of Chemistry, [S. l.], v. 9, n. 1, p. 67–75, 2026. DOI: 10.21580/wjc.v9i1.31598. Disponível em: https://journal.walisongo.ac.id/index.php/wjc/article/view/31598. Acesso em: 28 jul. 2026.