Abstract
The environmental behavior of 720 g/L 2,4-D: -dimethylammonium AS under wheat field conditions was studied in detail. The dissipation behaviors of 2,4-D: -dimethylammonium in wheat and soil were fitted to first-order kinetic equation (C = C (0) e (-lambdat )). But different experimental points and years have different initial deposits and half-lives (T (1/2)). After applying 720 g/L 2,4-D: -dimethylammonium AS at recommended dosage and 1.5-fold recommended dosage during 3-4 leaf stage, the residues of 2,4-D: -dimethylammonium in wheat plant, wheat grain and soil were all lower than 0.02 mg/kg. The obtained results suggested that, it is safety for application at the recommended dosage during 3-4 leaf stage to control weeds in wheat field.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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2,4-Dichlorophenoxyacetic Acid / analysis*
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2,4-Dichlorophenoxyacetic Acid / chemistry
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2,4-Dichlorophenoxyacetic Acid / metabolism
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Agriculture / methods
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China
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Cities
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Dimethylamines / analysis*
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Dimethylamines / chemistry
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Dimethylamines / metabolism
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Environmental Monitoring
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Food Contamination / analysis
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Herbicides / analysis*
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Herbicides / chemistry
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Herbicides / metabolism
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Kinetics
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Pesticide Residues / analysis*
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Pesticide Residues / chemistry
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Pesticide Residues / metabolism
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Soil / analysis*
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Soil Pollutants / analysis*
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Soil Pollutants / chemistry
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Soil Pollutants / metabolism
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Triticum / chemistry
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Triticum / metabolism*
Substances
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Dimethylamines
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Herbicides
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Pesticide Residues
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Soil
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Soil Pollutants
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2,4-D amine
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2,4-Dichlorophenoxyacetic Acid