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vpratapsingh@rediffmail.com
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Department of Agronomy, College of Agriculture, Govind Ballabh Pant University of Agriculture & Technology Pantnagar, U.S. Nagar, Uttarakhand 263 145
Cyhalofop-butyl, Herbicide, Herbicide efficiency index, Weed control efficiency, Yield
The present study was carried out at G.B. Pant University of Agriculture and Technology, Pantnagar during rainy seasons 2014 and 2015 to determine the efficacy of post-emergence application of cyhalofop-butyl in managing weeds in direct-seeded rice. Eight treatments, viz. cyhalofop-butyl 10% EC at 65, 75, 80 and 90 g/ha, cyhalofop-butyl 10% EC at 75 and 80 g/ha, hand weeding twice at 20 and 40 DAS and untreated control were laid out in a randomized block design with three replications. Application of cyhalofop-butyl controlled grassy weeds better than the non-grassy weeds and recorded maximum weed control efficiency, higher yield attributes and yield. Application of cyhalofop-butyl in rice did not show any phytotoxic effect on succeeding wheat.