SALONEN, M.; KÄHÄRI, J. The nitrogen effect of peat addition in clay soil. Agricultural and Food Science, [S. l.], v. 50, n. 2, p. 78–84, 1978. DOI: 10.23986/afsci.71961. Disponível em: https://journal.fi/afs/article/view/71961. Acesso em: 24 jul. 2024.