KAILA, A. Fixation of potassium in Finnish soils. Agricultural and Food Science, [S. l.], v. 37, n. 2, p. 116–126, 1965. DOI: 10.23986/afsci.71631. Disponível em: https://journal.fi/afs/article/view/71631. Acesso em: 15 apr. 2025.