“Response on Growth of Oil Palm Seedling (Main Nursery) by Adding Several Amandement, Fertilizer and Sulphate Reduction Bacteria on Acid Sulphate Soils”. Jurnal Online Pertanian Tropik 5, no. 3 (December 3, 2019): 344–354. Accessed February 5, 2026. https://idjpcr.usu.ac.id/jpt/article/view/3062.