PESSI, Y.; YLÄNEN, M.; LESKELÄ, A.; SYVÄLAHTI, J. Autumn and winter application of nitrogen fertilizers on clay soils. Agricultural and Food Science, [S. l.], v. 43, n. 2, p. 76–85, 1971. DOI: 10.23986/afsci.71786. Disponível em: https://journal.fi/afs/article/view/71786. Acesso em: 11 may. 2024.