Results 171 to 180 of about 2,397 (201)
Response of Soybean to Combinations of Clomazone, Metribuzin, Linuron, Alachlor, and Atrazine
Weed Technology, 1992 Field observations in 1986 indicated that increased injury to soybean could occur from clomazone plus metribuzin and clomazone plus linuron compared with metribuzin or linuron alone. Field experiments to measure this response were conducted in 1988, 1989,
Karen A. Renner
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Microbial Transformations of Clomazone
Journal of Agricultural and Food Chemistry, 1996Common soil fungi and bacteria were screened for their abilities to biotransform the herbicide clomazone (2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone) into metabolites. Preparative-scale incubations were conducted with Aspergillus niger (UI-X172) and Cunninghamella echinulata (NRRL-3655) to obtain metabolites in sufficient quantities for ...
Song Yu Liu +2 more
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Burned Rice Straw Reduces the Availability of Clomazone to Barnyardgrass
Science of the Total Environment, 2008Field burning of crop residue is a common post-harvest practice to dispose of these agricultural by-products and for land clearing. Burned crop residues may effectively adsorb pesticides and thus influence their bioavailability in agricultural soils. The adsorption of clomazone by a soil amended with a burned rice straw (BRS) was measured.
Chao Xu, Weiping Liu
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Environmental Fate and Toxicology of Clomazone
2013Clomazone, an isoxazolane herbicide, was first registered for use in 1986 for pest grasses and broad leaf weeds. Although the exact mode of action is still unclear, it is well documented that clomazone causes bleaching of foliar structures; the clomazone metabolite 5-ketoclomazone is regarded to cause the bleaching and to be the ultimate plant toxicant.
April R, Van Scoy, Ronald S, Tjeerdema
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Metabolism of clomazone herbicide in soybean
Journal of Agricultural and Food Chemistry, 1992The metabolism of 2-[(2-chlorophenyl) methyl]-4,4-dimethyl-3-isoxazolidinone (clomazone) was studied in soybean plants grown in the greenhouse using 14C-radiolabeled clomazone at 1.1 and 2.2 kg of ai/ha. Isolation and identification of clomazone metabolites from soybean plants at 30 and 60 days after treatment indicated that the major metabolic ...
Shaaban F. ElNaggar +4 more
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Adsorption of Clomazone on Soils, Sediments, and Clays
Weed Science, 1989Regression analysis of clomazone adsorption on 19 soils and sediments yielded a positive correlation and linear relationship between distribution adsorption constants (Kd) and soil organic carbon content. The agreement of the experimental mean Kocwith Kocvalues predicted from the octanol-water partition coefficient and water solubility of clomazone ...
Rex A Liebl
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Clomazone Dissipation in Two Tennessee Soils
Weed Science, 1996Clomazone dissipation in soil was examined in field and laboratory experiments. Field studies suggested a potential for injury to rotational crops such as wheat. Field half-lives were 5 to 29 d (average of 9 field studies was 19 d) for the Etowah clay loam (fine-loamy, siliceous, thermic typic Paleudult) and Lily loam (fine-loamy, siliceous, thermic ...
K. Bruce Kirksey +4 more
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Bioaccumulation and Elimination of the Herbicide Clomazone in the Earthworms Eisenia fetida
Bulletin of Environmental Contamination and Toxicology, 2015Acute toxicity, bioaccumulation, and elimination of herbicide clomazone in the earthworm Eisenia fetida were investigated in the different exposure systems. The LC50 values of clomazone on earthworms were 5.6 μg cm(-2) in the contact filter paper test (48 h), 174.9 mg kg(-1) (7 days) and 123.4 mg kg(-1) (14 days) in artificial soil test, respectively ...
Qing X Li, Xiaoping Diao, Jia Cao
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Biochemical effects of clomazone herbicide on piava (Leporinus obtusidens)
Chemosphere, 2008This study aims to verify the effects of the clomazone concentration used in rice fields on acetylcholinesterase (AChE), thiobarbituric acid reactive substances (TBARS), protein carbonyl and catalase activity in tissues of piava (Leporinus obtusidens).
Denise dos Santos, Miron +6 more
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Crop Response to Fallow Applications of Atrazine and Clomazone
Weed Technology, 1993The response of oat, foxtail millet, proso millet, and sunflower to atrazine and clomazone applied the previous fall was investigated two years in field studies near Akron, CO and Sidney, NE. Foxtail millet biomass, and proso millet and sunflower grain yields were not reduced when these crops were seeded into soil that had been treated the previous ...
Drew J. Lyon, Randy L. Anderson
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