HERMAN, W.; RESIGIA, E.; SYAHRIAL, S. FORMULASI BIOCHAR DAN KOMPOS TITONIA TERHADAP KETERSEDIAAN HARA TANAH ORDO ULTISOL. Journal Galung Tropika, [S. l.], v. 7, n. 1, p. 56–63, 2018. DOI: 10.31850/jgt.v7i1.307. Disponível em: https://mail.jurnalpertanianumpar.com/jgt/article/view/307. Acesso em: 7 nov. 2026.