PIETOLA, L.; TANNI, R.; ELONEN, P. Responses of yield and N use of spring sown crops to N fertilization, with special reference to the use of plant growth regulators. Agricultural and Food Science, [S. l.], v. 8, n. 4-5, p. 423–440, 1999. DOI: 10.23986/afsci.5639. Disponível em: https://journal.fi/afs/article/view/5639. Acesso em: 19 apr. 2024.