Putri Ad’ha N, Khairul Rizal, Yusmaidar Sepriani, Fitra Syawal Harahap. STUDY OF THE EFFECTIVENESS OF COMPOST FROM OIL PALM EMPTY FRUIT BUNCH (OPF) WASTE AS AN ALTERNATIVE SOURCE OF POTASSIUM (K) ON NUTRIENT ABSORPTION AND OIL PALM YIELD IN PANGKATAN PLANTATION OF PT. EVANS GROUP. IJSET [Internet]. 2026 Feb. 28 [cited 2026 Jun. 27];5(3):1729-34. Available from: https://ijset.org/index.php/ijset/article/view/1675