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Updated: Jul 20, 2026

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures
Published on: October 29, 2016
Cotton strip assay detects soil microbial degradation differences among crop rotation and tillage experiments on
Gunasekhar Nachimuthu1, Andy Hundt1, Blake Palmer1
1NSW DPI, Australian Cotton Research Institute, Narrabri, NSW 2390, Australia.
Abstract:
The cotton strip assay (CSA) is a simple and inexpensive method of evaluating management effects on soil microbial decomposition. The average loss of tensile strength of cotton strips buried 3 to 35 days in soils from two long-term tillage and crop-rotation experiments was of the order: cotton-wheat rotation > minimum-tillage cotton monoculture > maximum-tillage cotton monoculture. The study suggests CSA can be an effective indicator to delineate microbial activity, soil organic carbon or crop biomass as influenced by agricultural practices in cotton fields.
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