Calibration of cardy-ion meters to measure nutrient concentrations in soil solution an in plant sap . Scientia Agricola, [S. l.], v. 62, n. 1, p. 8–11, 2005. DOI: 10.1590/S0103-90162005000100002. Disponível em: https://www.revistas.usp.br/sa/article/view/22030.. Acesso em: 29 apr. 2024.