Oksana, Riska Dian Oktari and Arya Wirandanu (2025) “Differences in Soil Nutrient Levels in Oil Palm Plantations (Elaeis guineensis Jacq.) Planting Age 6 and 8 Years : -”, JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA), 7(2), pp. 632 -. doi: 10.36378/juatika.v7i2.4677.