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KMID : 0903519850280030124
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1985 Volume.28 No. 3 p.124 ~ p.130
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The Adsorption of N - methylcarbamate Insecticides on Soils
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Abstract
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Adsorption experiments of N-methylcarbamate insecticides on soils were carried out as a function of soil pH and soil organic matter content with wet-and dry-land soils that were either oxidized or non-oxidized. The results obtained may be summarized as follows:
The adsorption of N-methylcarbamate insecticides on soils was nearly reached to equilibrium after shaking for 12 hours.
The adsorption of N-methylcarbamate insecticides was higher tin sandy clay than sandy loam. The presence of organic matter in soil increased the adsorption of N-methylcarbamate insecticides on soils.
The mode of isothermal adsorption of N-methylcarbamate insecticides on soils was coincident with the Freundlich equation. Little effect of soil pH on the adsorption might be interpreted as that the adsorption was due to physical adsorption between N-methylcarbamate molecules and soil surface.
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