2024. The Effect of Application Compost and Biochar from Salak Leaf Sheaths on Carbon Status and Growth of Corn Plants (Zea mays L.) in Ultisol Soil. Jurnal Online Pertanian Tropik. 11, 1 (Mar. 2024), 19–28. DOI:https://doi.org/10.32734/jopt.v11i1.15629.