Research Article
Applying Sewage Sludge to Eucalyptus grandis Plantations: Effects on Biomass Production and Nutrient Cycling through Litterfall
Table 5
Average nutrient concentrations in leaf litter and total amounts of dry matter and nutrients returning to the soil via litterfall from 12 to 36 months after planting.
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Significant differences () among treatments indicated by different letters in the same column. Nutrient concentration is an arithmetic average obtained in the analysis performed during the study (12–36 months), nutrient returned value is the sum of all periods. |