DRIS norms for evaluating the nutritional state of apple tree . Scientia Agricola, [S. l.], v. 64, n. 3, p. 282–287, 2007. DOI: 10.1590/S0103-90162007000300011. Disponível em: https://revistas.usp.br/sa/article/view/22249.. Acesso em: 26 jun. 2024.