Sapitu, Febianus, Rista Delyani, Zaenal Mutaqin, and Nober Padidi. “Respons Pertumbuhan Bibit Tanaman Kakao (Theobroma Cacao L.) Terhadap Pemberian Biochar Sekam Padi Dan Mikoriza Pada Tanah Ultisol”. AGRORADIX : Jurnal Ilmu Pertanian 8, no. 2 (July 2, 2025): 101-111. Accessed January 21, 2026. https://e-jurnal.unisda.ac.id/index.php/agro/article/view/9309.