Applying Sewage Sludge to Eucalyptus grandis Plantations: Effects on Biomass Production and Nutrient Cycling through Litterfall

Table 2

Chemical analysis of wet and dry sewage sludge applied in the experiment.

Determinations	Wet sludge	Dry sludge
pH (0.01 M CaCl2)	7.3	6.5
Bulk density	1.03 g cm^−3	0.97 g cm^−3
Moisture	77%	7.4%
Organic matter	546 g kg^−1	530.2 g kg^−1
Nitrogen (N)	32 g kg^-1	35 g kg^−1
C/N	9.4	8.5
Phosphorus (P)	14 g kg^−1	17 g kg^−1
Potassium (K)	2.2 g kg^−1	2.2 g kg^−1
Calcium (Ca)	25 g kg^−1	24 g kg^−1
Magnesium (Mg)	4.9 g kg^−1	3.9 g kg^−1
Sulfur (S)	6.6 g kg^−1	6.8 g kg^−1
Copper (Cu)	0.6 g kg^−1	0.7 g kg^−1
Manganese (Mn)	0.19 g kg^−1	0.3 g kg^−1
Zinc (Zn)	2.4 g kg^−1	3.2 g kg^−1
Iron (Fe)	39 g kg^−1	45 g kg^−1
Boron (B)	0.009 g kg^−1	0.002 g kg^−1
Sodium (Na)	0.6 g kg^−1	0.9 g kg^−1