SITUMEANG, Y. P. Utilization of biochar, compost and phonska in improving corn results on dry land. International research journal of engineering, IT and scientific research, [S. l.], v. 3, n. 3, p. 45–57, 2017. Disponível em: https://sloap.org/journals/index.php/irjeis/article/view/563. Acesso em: 16 nov. 2024.