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《Journal of Anhui Agricultural University》 2005-04
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Effects of Selected Pesticides on Photodegradation of Trifluralin on Solid Phase

YUE Yong-de~1,TAO Qing-hui~2,LIU Gen-feng~3,TANG Feng~2,LIU Jian-xing~2,HUA Ri-mao~2(1.International Center for Bamboo & Rattan,Beijing 100102; 2.College of Resources & Environment,Anhui Agricultural University,Hefei 230036;3.Chinese Society of Forestry,Beijing 100091)  
The photodegradation of trifluralin was investigated on solid phase,under high pressure mercury lamp or sunlight irradiation.The half-lives of trifluralin adsorbed on glass,silica gel,quartz sand and bentonite under HPML were 24.78 min,98.51 min,106.41 min and 220.42 min,respectively.The effects of selected pesticides on photolysis of trifluralin on solid phase were also studied.The result showed that the photolytic rate of trifluralin was accelerated by pyrethroids or butachlor at the dosage ratio of 1∶1 on silica gel under sunlight,while it was delayed by pyrethroids or butachlor at the dosage ratio of 10∶1.Photostabilization was observed when trifluralin mixed with deltamethrin or bifenthrin at the dosage ratio of 5∶1.The photodegradation of trifluralin was delayed by allethrin on quartz sand or fenvalerate on bentonite.
【Fund】: 国家自然科学基金(30370948)资助
【CateGory Index】: X592;
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