Nitrogen 15 abundance in protein fractions of beans fertilized with (15NH4)2SO4 . Scientia Agricola, [S. l.], v. 59, n. 4, p. 777–780, 2002. DOI: 10.1590/S0103-90162002000400023. Disponível em: https://www.revistas.usp.br/sa/article/view/21798.. Acesso em: 28 may. 2024.