Decomposition pattern of 14C-labeled rice straw in aerobic and submerged rice soils of the Philippines

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Abstract

Decomposition of 14C-labeled rice straw in aerobic and submerged rice soils was studied in the field for 4 years in the Philippines. During the first year, 80–90% of 14C was lost. Mineralization of stabilized residues and metabolic products then followed a logarithmic function indicating halflives of about 2 years in all soils.

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