N % P% K% S% Ca% Na% Mg % Cu mg/kg Fe mg/kg Zn mg/kg Mn mg/kg B mg/kg
  Lowest 1.4 0.1 0.7 0.1 0.3 0.016 0.1 3.8 78.4 12.9 27.1 13.4
Leaves (2005) Highest 3.8 0.2 2.0 0.4 3.0 0.4 0.7 10.9 293 34 535.2 115.5
  Mean 2.1 0.1 1.2 0.2 1.2 0.1 0.3 5.8 157.9 21.3 163.8 47.6
  Lowest 1.5 0.1 0.7 0.1 0.6 0.008 0.2 2.9 145.6 15.0 36.7 14
Leaves (2006) Highest 3 0.2 2.1 0.4 3.3 0.5 0.6 9.6 455.7 41.4 628.3 109.0
  Mean 2.2 0.1 1.1 0.2 1.5 0.1 0.4 5.1 287.2 21 182.0 54.0
  Lowest 0.8 0.1 0.4 0.3 1.1 0.032 0.2 2.3 316.4 15.4 66.1 26.0
Leaf Litter (2006) Highest 3.4 0.2 1.6 0.1 3.7 0.3 0.6 8.8 607.2 42.7 645.7 169.0
  Mean 1.4 0.1 0.7 0.2 1.7 0.1 0.3 3.8 388.5 21.1 190.6 63.3
Table 6: The lowest, highest and mean nutrient concentrations in 2 and 3 year-old trees.