Bispyribac-sodium, Ethoxysulfuron, Herbicide mixure, Transplanted rice, Weed, Yield

Different herbicides alone and in combination were tested for the control of complex weed flora in transplanted rice during Kharif season 2013 at Crop Research Centre (CRC) of G.B Pant University of Agriculture and Technology, Pantnagar, District, Udham Singh Nagar (Uttarakhand). The experiment was laid out in randomized block design with three replications to evaluate twelve treatments. The major weeds were Echinochloa colona, E. crusgalli, Ischaemum rugosum, Caesulia axillaris, Ammania baccifera, Alternanthera sessilis and Cyperus iria. Combination of post-emergence application of bispyribac-sodium at 25 g/ha + ethoxysulfuron at 18.75 g /ha was most effective in controlling weed species and yielded maximum grain yield (6.51 t/ha) among the herbicidal treatments after weed free (6.74 t/ha).