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

Table 1

Soil analysis of the experimental area before planting.

			Exchangeable cations
Depth (cm)	P^(1)	pH	K	Ca	Mg	CEC	S-SO4^2−	B^(2)	Cu^(2)	Fe^(2)	Mn^(2)	Zn^(2)
	Mg g^−1	CaCl2	mmolc kg^−1				mg kg^−1
0–5	3	4.0	0.2	1.7	1.3	27	24	0.08	0.27	35	0.9	0.27
5–10	2	4.0	0.2	1.0	0.7	21	30	0.07	0.20	25	0.4	0.13
10–20	2	4.0	0.2	0.8	0.7	17	34	0.06	0.23	18	0.2	0.10
20–50	2	3.8	0.0	0.8	0.4	14	9.6	0.05	0.22	14	0.2	0.12

⁽¹⁾Resin extraction; ⁽²⁾extractable amounts [23].