Assessment of post-emergence weed management in direct-seeded rice Singh V. Pratap*, Singh S.P., Bisht Neema, Kumar A., Satyawali Kavita, Paliwal Arunima Department of Agronomy, College of Agriculture, Govind Ballabh Pant University of Agriculture & Technology Pantnagar, U.S. Nagar, Uttarakhand, 263 145 *Corresponding author: vpratapsingh@rediffmail.com
Online published on 27 December, 2017. Abstract 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. Top Keywords Cyhalofop-butyl, Herbicide, Herbicide efficiency index, Weed control efficiency, Yield. Top |