Fig. 3From: Acorn size is more important than nursery fertilization for outplanting performance of Quercus variabilis container seedlingsEffects of nursery fertilization and acorn size on plant N (a), P (b), and K (c) concentration (mean ± SE; n = 5) of Quercus variabilis seedlings after the first growing season in the nursery. The number inside each column refers to the mean plant content of N, P, or K (mg). Bars and numbers marked with different letters differ statistically according to Duncan’s test (α = 0.05)Back to article page