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

Table 6

Nutrient retranslocation (%) in senescent leaves during 1 to 3 years after planting.

Treatment

N

P

K

Ca

Mg

S

Control

56.9%

b

71.4%

a

81.3%

a

−17.5%

a

32.5%

a

31.1%

a

Mineral fertilizer

62.5%

a b

77.0%

a

69.7%

b

−27.0%

a

14.8%

b

33.6%

a

Wet sewage

62.0%

a b

70.1%

a

70.7%

b

−26.6%

a

29.7%

a

32.8%

a

Dry sewage

64.0%

a

70.2%

a

68.7%

b

−21.2%

a

31.4%

a

37.3%

a

Significant differences (𝑃<.05) among treatments indicated by different letters in the same column.