International Sugar Journal

Carbon dioxide enrichment effects on the decomposition of sugarcane residues* [Full subscriber]

Abstract The aim of this study was to determine the decomposition dynamics of sugarcane residue under conditions of enriched atmospheric CO2 concentration using a FACE facility (Free-Air Carbon Dioxide Enrichment). The experiment, conducted in Jaguariúna, São Paulo State, Brazil, using the ClimapestFACE facility, received two treatments: elevated CO2 (550 ± 100 μmol mol-1) and ambient CO2 (400 μmol mol-1), for a single amount (5 t ha-1) of straw (cane trash), in a randomized-block design with six replications. Decomposition was determined by using litter bags with sampling at 0, 14, 36, 60, 90, 119, 179, 291 and 362 days after commencement…

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