Growth and yields of some peanut varieties with application of palm fiber biochar Samanhudi, Muji Rahayu, Amalia Tetrani Sakya, Gani Cahyo Handoyo and Bramantyo Bagus Priambodo E3S Web Conf., 467 (2023) 01018 Published online: 20 December 2023 DOI: 10.1051/e3sconf/202346701018