Anwar S, Murtilaksono K, Nugroho B, Rahutomo S. Potassium Use Efficiency of Natural Zeolite-Based Potassium Fertilizer in Oil Palm Seedlings (Elaeis guineensis Jacq.) Using Peat Soil Media. J. Penelitian Kelapa Sawit [Internet]. 2023Nov.29 [cited 2024Dec.21];31(3):139-52. Available from: https://jurnalkelapasawit.iopri.org/index.php/jpks/article/view/246