Iwar Barus, Guna Darman, Syahrullah, Ambo Upe and Tenri Sau (2024) “Biochar from Raw Materials Arundo Spp; Effect on Corn Plant Growth and Production”, Jurnal Online Pertanian Tropik, 10(2), pp. 45–50. doi: 10.32734/jopt.v10i2.15181.