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Effect of K supply on micronutrient and Na concentrations in leaves, stem, and roots of two medical cannabis cultivars, RM and DQ. Zn (A), Mn (B), Fe (C), Cu (D), Na (E), and Cl (F). Presented data are averages ± SE (n = 5). Asterisks represent significant differences between organs at each K level, by Tukey HSD test at α = 0.05.
