THE EFFECTIVENESS OF NATURAL PLANT GROWTH REGULATORS (PGRS) FROM BEAN SPROUTS EXTRACT AND NPK 15-15-6-4 ON THE GROWTH OF OIL PALM SEEDLINGS (Elaeis guineensis Jacq.): EFEKTIVITAS ZPT ALAMI EKSTRAK TOGE DAN NPK 15-15-6-4 TERHADAP PERTUMBUHAN BIBIT KELAPASAWIT (Elaeis guineensis Jacq.). ROCE [Internet]. 2026 Aug. 8 [cited 2026 Aug. 9];3(2). Available from: https://jurnal.rocewisdomaceh.com/index.php/roce/article/view/185