KAILA, A. Release of nonexchangeable potassium from Finnish mineral soils. Agricultural and Food Science, [S. l.], v. 39, n. 2, p. 107–118, 1967. DOI: 10.23986/afsci.71679. Disponível em: https://journal.fi/afs/article/view/71679. Acesso em: 17 may. 2024.