ORTIZ, Fábio Rogério; BRITO, Osmar Rodrigues; BORKERT, Clóvis Manuel. EXTRACTING SOLUTIONS FOR QUANTIFICATION OF ZINC, COPPER AND MANGANESE IN A SANDY SOIL. Scientia Agraria, [S. l.], v. 8, n. 1, p. 95–98, 2007. DOI: 10.5380/rsa.v8i1.8348. Disponível em: https://revistas.ufpr.br/agraria/article/view/8348. Acesso em: 4 jan. 2026.