Density and diversity of diazotrophic bacteria isolated from Amazonian soils using N-free semi-solid media . Scientia Agricola, [S. l.], v. 68, n. 5, p. 518–525, 2011. DOI: 10.1590/S0103-90162011000500002. Disponível em: https://revistas.usp.br/sa/article/view/22701.. Acesso em: 17 jul. 2024.