Alfalfa yield and quality as function of nitrogen fertilization and symbiosis with Sinorhizobium meliloti . Scientia Agricola, [S. l.], v. 61, n. 4, p. 433–438, 2004. DOI: 10.1590/S0103-90162004000400013. Disponível em: https://www.revistas.usp.br/sa/article/view/21935.. Acesso em: 31 oct. 2024.