2022. THE EFFECT OF GIVING BIOCHAR OF OIL PALM EMPTY FRUIT BUNCHES ON THE GROWTH OF PEPPER CUTTINGS IN THE ULTISOL SUBSOIL LAYER. Journal of Agro Plantation (JAP). 1, 2 (Oct. 2022), 62–73. DOI:https://doi.org/10.58466/jap.v1i2.1241.