Results 211 to 220 of about 8,443 (253)
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HPLC–Residue Analysis of the Herbicide Pyridate in Cereals
International Journal of Environmental Analytical Chemistry, 1983For many reasons residue analysis of plant protecting chemicals is becoming of increasing importance. The demand of modern trace analysis techniques is to detect significantly and sensitively values down to levels in the ppb range or even less. Aggravating circumstances are the complex multicomponent sample matrices out of whom the residue analysis has
W, Lindner, H, Ruckendorfer
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Effects of Corn Residue and Herbicide Placement on Herbicide Runoff Losses
Transactions of the ASAE, 1982ABSTRACT RAINFALL simulation was used to determine the ef-fects of corn residue on the soil surface, and her-bicide placement relative to it, on herbicide runoff losses. The herbicides propachlor, atrazine, and alachlor were applied above or below residue to plots with 0, 375, 750, and 1500 kg/ha corn residue. A 2-h rain of 127 mm was simulated.
null J. L. Baker +2 more
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Analysis of herbicide residues in sugar beet and sugar
Food / Nahrung, 1988AbstractA simple quantitative TLC method for the determination of the residues of herbicide inhibiting photosynthesis was compared with capillary GLC for the analysis of atrazine, chloridazone, lenacil, phenmedipham and desmedipham in sugar beet and sugar. No significant differences in the determination limit and precision of the two methods were found.
J, Tekel +3 more
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Phenoxy Herbicide Residues and Their Persistence
1967Abstract : The report reviews the use and persistance of phenoxy herbicides such as 2-4-D, 2-4-5-T, MCPA.
K. W. Dockter +3 more
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Residual effect and interval of herbicide application on soybean
Journal of Environmental Science and Health, Part BIn the burndown of Conyza spp., non selective herbicides are recurrent in soybean pre-sowing, and it is necessary to respect the time interval between the application of these products and the sowing of the crop, known as the plant back. Therefore, the objective of this study was to evaluate soybean phytotoxicity resulting from the application of ...
Milena Baretta Franceschetti +8 more
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The detection and determination of residues of the herbicide nitrofen in vegetables
The Analyst, 1974A method for residue analysis, based on electron-capture gas chromatography following clean-up on a sulphuric acid-Celite column, is presented. The limit of detection is 10 ng g–1. Recoveries have been investigated for different kinds of vegetables. The extraction efficiency of acetonitrile versus dichloromethane was checked in a separate experiment ...
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