Evaluation of nitrogen fixation and soil microorganisms in soybean under conventional and minimal cultivation regimes . Scientia Agricola, [S. l.], v. 50, n. 2, p. 212–219, 1993. DOI: 10.1590/S0103-90161993000200007. Disponível em: https://www.revistas.usp.br/sa/article/view/20109.. Acesso em: 21 may. 2024.