Growth and yield of soybean varieties with biochar applicationAmalia Tetrani Sakya, Muji Rahayu, Samanhudi, Gani Cahyo Handoyo and Muhammad Dio Nugroho Anindra PutraE3S Web Conf., 467 (2023) 01020DOI: https://doi.org/10.1051/e3sconf/202346701020