Comparative Study of Charcoal and Vermicast in Azotobacter Inoculum Preparation. International Journal of Phytopharmacy, [S. l.], v. 4, n. 3, p. 83–85, 2014. DOI: 10.7439/ijpp.v4i3.86. Disponível em: https://ssjournals.co.in/index.php/ijpp/article/view/1186. Acesso em: 31 mar. 2026.