THE EFFECT OF GIVING BIOCHAR OF OIL PALM EMPTY FRUIT BUNCHES ON THE GROWTH OF PEPPER CUTTINGS IN THE ULTISOL SUBSOIL LAYER. JAP [Internet]. 2022 Oct. 26 [cited 2025 Dec. 16];1(2):62-73. Available from: https://jurnal.politap.ac.id/index.php/jap/article/view/1241