This study aims to evaluate the effects of biofungicide and NPK-Mg fertilizer applications, as well as their interaction, on the growth of oil palm seedlings (Elaeis guineensis Jacq.) during the pre-nursery stage. The study was conducted at PT Kenawan Agro Sejahtera, Ogan Ilir, South Sumatra, from September to November 2025, with analysis performed at the Plant Physiology Laboratory of Sriwijay…