PELTOVUORI, T. Phosphorus extractability in surface soil samples as affected by mixing with subsoil. Agricultural and Food Science, [S. l.], v. 11, n. 4, p. 371–379, 2002. DOI: 10.23986/afsci.5736. Disponível em: https://journal.fi/afs/article/view/5736. Acesso em: 17 may. 2024.