Evaluation of different sources of boron associated with the intake of fulvics in the lettuce crop . Research, Society and Development, [S. l.], v. 11, n. 16, p. e126111638101, 2022. DOI: 10.33448/rsd-v11i16.38101. Disponível em: https://rsdjournal.org/rsd/article/view/38101. Acesso em: 5 dec. 2025.