Results 211 to 220 of about 5,067 (261)

Herbicide Residues in the Environment

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Thierry Dagnac, Roger Jeannot
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Herbicidal Residues on Crested Wheatgrass

Weed Science, 1968
The effects of residues of 16 herbicides used to control downy brome (Bromus tectorum L.) were studied in the greenhouse. Crested wheatgrass (Agropyron desertorum (Fisch. ex Link) Schult.) was planted in soils collected from field plots sprayed 1 to 4 years previously.
G. J. Klomp, A. G. Hull
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A novel detection scheme for herbicidal residues

Environmental Toxicology and Chemistry, 1995
Abstract It is relatively simple to determine the growth rate of a microorganism culture, minute-by-minute, by monitoring the CO2 content of an air stream that has passed through the culture at a constant rate. Any change in the growth rate caused by the addition of a toxicant is readily detectable.
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Analysis of herbicide residues in cereals, fruits and vegetables

Journal of Chromatography A, 2000
The determination of herbicide residues in cereals, fruits and vegetables by chromatographic methods is reviewed. The principal chemical groups of herbicides, like phenoxyacids, benzonitriles, ureas, triazines, dinitroanilines, chloroacetamides, carbamates, uracils, glyphosate and bipyridylium compounds, are considered.
Tadeo Lluch, José Luis, Sánchez-Brunete, C., Pérez Martín, Rosa Ana, Fernández, M. Dolores   +3 more
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Influence of ageing of residues on the availability of herbicides for leaching

Environmental Pollution, 2005
Losses by leaching of chlorotoluron, isoproturon and triasulfuron from small intact columns of a structured clay loam and an unstructured sandy loam soil were measured in five separate field experiments. In general, losses of all three herbicides were greater from the clay loam than from the sandy loam soil and the order between herbicides was always ...
A, Walker, M S, Rodriguez-Cruz, M J, Mitchell   +2 more
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Detoxification of Herbicide Residues in Soil

Weed Science, 1985
Much of the success of modern agriculture is due to pesticide technology. Because weeds pose the greatest threat to crop yields, the largest class of pesticides used today is herbicides. Herbicides include products whose active ingredients represent a wide range of chemical families; yet most constitute a minimal potential hazard to man and the ...
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Status of Herbicide Residues in Haryana

2018
We reviewed the status of major herbicides used by the farmers in different cropping sequences of Haryana state by standardization of methodologies following suitable protocols for residues estimation in major environmental components like soil, underground water and crop products.
Anil Duhan, S. S. Punia, Dharam Bir Yadav   +2 more
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HPLC–Residue Analysis of the Herbicide Pyridate in Cereals

International Journal of Environmental Analytical Chemistry, 1983
For 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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Chromatographic determination of herbicide residues in various matrices

Biomedical Chromatography, 2004
AbstractThe newest results in the use of various extraction techniques and chromatographic methods such as gas–liquid and high‐performance liquid chromatography used for the assessment of herbicide residues in various matrices have been compiled and critically evaluated.
Tibor, Cserháti, Esther, Forgács, Zdenek, Deyl, Ivan, Miksik, Adam, Eckhardt   +4 more
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Effects of Corn Residue and Herbicide Placement on Herbicide Runoff Losses

Transactions of the ASAE, 1982
ABSTRACT 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, null J. M. Laflen, null R. O. Hartwig   +2 more
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