Results 161 to 170 of about 1,602 (208)

Insights into the degradation of chlorimuron-ethyl by Stenotrophomonas maltophilia D310-3

Chemosphere, 2016
In this study, the effects of cultivation conditions on the degradation of chlorimuron-ethyl by Stenotrophomonas maltophilia D310-3, which exhibits a high chlorimuron-ethyl-degrading capability, were investigated. To improve the biodegradation efficiency, the cultivation conditions were optimized using response surface methodology (RSM) based on Box ...
Hailian Zang, Chunyan Li
exaly   +3 more sources

Application Rate and Timing of Acifluorfen, Bentazon, Chlorimuron, and Imazaquin

Weed Technology, 1992
Data from field studies at Fayetteville, AR, were used to predict the herbicide rate needed to provide 70, 80, or 90% control of a weed based upon weed age. Reduced herbicide rates generally needed to be applied within 6 to 12 d after emergence to control weeds 90%.
Charles A. King, Lawrence R. Oliver
openaire   +2 more sources

Isolation and characterization of Sporobolomyces sp. LF1 capable of degrading chlorimuron-ethyl

Journal of Environmental Sciences, 2009
A yeast strain which was capable of degrading sulfonylurea herbicide chlorimuron-ethyl named as LF1 was isolated from a chlorimuron-ethyl contaminated soil near the warehouse of the factory producing chlorimuron-ethyl in Shenyang City, Northeast China.
Xiaoli Zhang, Huiwen Zhang
exaly   +3 more sources

Photolysis of chlorimuron‐ethyl

Toxicological & Environmental Chemistry, 1997
To examine the photostability of the herbicide chlorimuron‐ethyl (ethyl‐2‐[[[[(4‐methoxy‐6‐chloro‐pyrimidin‐2‐yl)amino]carbonyl]amino]sulfonyl]benzoate) in the field, model experiment with organic solvent was performed. Photolysis of chlorimuron‐ethyl in methanol solution resulted in the formation of seven major and five minor photoproducts, isolated ...
Partha P. Choudhury, P. Dureja
openaire   +1 more source

Effects of Tillage on Chlorimuron Persistence

Weed Science, 1996
Field studies were conducted in Mississippi on a Marietta loam during 1988, 1989, and 1990, and in Tennessee on a Statler loam during 1988 and 1989, to determine effect of tillage on chlorimuron persistence. A corn shoot bioassay was conducted to determine bioavailable chlorimuron in the soil.
Todd A. Baughman, David R. Shaw, G. Neil Rhodes, Thomas C. Mueller   +3 more
openaire   +1 more source

Photolysis of chlorimuron‐ethyl in benzene

Toxicological & Environmental Chemistry, 1997
Chlorirauron‐ethyl, a sulfonylurea herbicide was irradiated by ultra violet light from a medium pressure Hg lamp (>290 nm) in benzene solution using a quartz apparatus. Three major and six minor products were identified by spectroscopic methods. These products are formed by cleavage of sulfonylurea bridge, rearrangement, dechlorination etc. The rate of
Partha P. Choudhury, P. Dureja
openaire   +1 more source

Chlorimuron ethyl metabolism in corn

Pesticide Biochemistry and Physiology, 1991
Abstract [14C]Chlorimuron ethyl was readily absorbed by the roots of young intact corn seedlings and through the cut ends of excised leaves, but it was not readily absorbed by intact leaves. Under the conditions employed, [14C]chlorimuron ethyl was metabolized at a moderate rate in both intact roots and excised leaves (ca.
Gerald L. Lamoureux, Donald G. Rusness, Fred S. Tanaka   +2 more
openaire   +1 more source

Reaction of chlorimuron‐ethyl with diazomethane

Toxicological & Environmental Chemistry, 1996
Methylation of chlorimuron‐ethyl with etheral solution of diazomethane gave ethyl‐2‐[[[[(4‐chloro‐6‐methoxy‐2‐pyrimidinyl) N‐methylamino] carbonyl] N‐methylamino] sulfonyl] benzoate (dimethyl derivative of chlorimuron‐ethyl) as the major product along with 4‐chloro‐6‐methoxy‐2‐N‐methylamino pyrimidine, 2‐aminomethyl sulfonyl benzoic acid, ethyl‐2‐[(N ...
Partha P. Choudhury, Prem Dureja
openaire   +1 more source

Dissipation of Chlorimuron in Southern Soils

Weed Science, 1994
Chlorimuron dissipation as determined by bioavailability in nine soils across the Southern United States was characterized by rapid initial loss followed by a slower dissipation rate following field application of the herbicide in soybean. The rate of bioavailable dissipation varied by year and soil The calculated time for 50% dissipation of ...
William K. Vencill, Philip A. Banks
openaire   +1 more source

Studies on photodegradation of chlorimuron-ethyl in soil

Pesticide Science, 1997
Photolysis of chlorimuron-ethyl was studied on a soil surface under sunlight and UV light. Eight photoproducts were isolated and characterised by spectroscopic methods. Major photoproducts are formed by cleavage of the sulfonylurea bridge and minor products are formed via dechlorination, hydrolysis and cyclisation.
Partha P. Choudhury, Prem Dureja
openaire   +1 more source