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KMID : 0903519830260040248
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1983 Volume.26 No. 4 p.248 ~ p.254
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Degradation Pattern and Rate of Some Pesticides in Soils
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Abstract
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The effects of some soil conditions on the degradation rate and decomposing pattern of thiolix were investigated and the obtained results are summarized as follows:
Thiolix degraded more rapidly in flood soils than in noon-flooded, and in wet soils than in dry soils under non-flooded soils. The degradation rates in non-flooded soils increased with higher pesticide concentration.
Thiolix was more persistent in non-flooded soils under soil sterelization than under non-sterilization and degraded rapidly in glucose application.
The metabolites identified from the soils by TLC and GLC include Thiolix alcohol, Thiolix sulfate, Thiolix ether and a unknown metabolite.
Soil enzyme, acid phosphatase activity decreased at higher pesticide concentration, lower moisture contents of soil and the activity in glucose application was increased.
Soil enzyme, urease and dehydrogenase activity decreased at higher pesticide concentrations.
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