Fig. 4. Mean plant total N, P, K, Ca, and Mg content (mmol) on each of five harvest dates for (a) black cherry, (b) northern red oak, and (c) red maple seedlings grown in pots containing A horizon soil from two forest sites, Twin Creeks and Cove Mountain. Means within a species x site combination marked with the same letter are not different based on Tukey's HSD test (P = 0.05). Note differences in the content scale for each species

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