Cations extraction of sandy-clay soils from cavado valley, portugal, using sodium salts solutions . Scientia Agricola, [S. l.], v. 59, n. 2, p. 365–371, 2002. DOI: 10.1590/S0103-90162002000200024. Disponível em: https://www.revistas.usp.br/sa/article/view/21738.. Acesso em: 18 may. 2024.