Residual effects of biochar and application of biofilm biofertilizer on Alfisols physical properties and rice yieldSudadi, Ongko Cahyono, Vita Ratri Cahyani, Slamet Minardi, Siti Maro’ah, Ristiya Adi Wiratama and Indah Puspita NingrumBIO Web Conf., 227 (2026) 05003DOI: https://doi.org/10.1051/bioconf/202622705003