A COMPOSITE SOIL QUALITY INDEX INTEGRATING CHEMICAL FERTILITY AND PHYSICAL MATURITY INDICATORS FOR TROPICAL PEAT SOILS IN MAHAKAM TENGAH, EAST KALIMANTAN. Mulawarman Agricultural Proceedings, [S. l.], v. 1, n. 1, p. 21–30, 2026. Disponível em: https://e-journals2.unmul.ac.id/index.php/mulagriproc/article/view/5880. Acesso em: 24 sep. 2026.