Evaluation of harvest residues of Cyhalofop-butyl in paddy soil.
Cyhalofop-butyl is a recently registered herbicide from the aryloxyphenoxy propionate group in India to control a wide range of grass weed species at various growth stages in rice crop. Field experiment with rice variety Pusa Sugandh 5 was conducted at IARI, New Delhi. Rice crop was sprayed thrice with cyhalofopa-butyl at 40, 60 and 80 g ha(-1) at the 10, 20 and 30 DAS. Harvest soil samples were extracted and analysed for cyhalofop-butyl and cyhalofop acid residues by HPLC using CH(3)OH:H(2)O (80:20) mobile phase at a flow rate of 1 mL min(-1) at 240 nm wavelength using PDA detector. In harvest soil the residues were below the detectable limits.
Division of Agronomy, Indian Agricultural Research Institute, New Delhi, 110012, India.
Bipin
B
Kumar
Rajvir
R
Sharma
Shashi Bala
SB
Singh
D002073:Butanes / Q000032:analysis* / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D018556:Crops, Agricultural; D006540:Herbicides / Q000032:analysis / Q000737:chemistry; D007194:India; D009570:Nitriles / Q000032:analysis* / Q000378:metabolism; D012275:Oryza; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000032:analysis* / Q000737:chemistry
D002073:Butanes; D006540:Herbicides; D009570:Nitriles; D010573:Pesticide Residues; D012987:Soil; C501583:cyhalofop-butyl