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A field experiment was conducted during kharif, 2013-14 at Student Farm, College of Agriculture, Rajendranagar, Hyderabad, Acharya N. G. Ranga Agricultural University to find out the effect of different weed management practices in sunflower. Weed spectrum of the experimental field consisted of three groups of weeds like prominent weed species observed in experimental site were grasses viz., Cynodon dactylon and Dactyloctenium aegyptium, sedges viz., Cyperus rotundus and broadleaved weeds viz., Celosia argentea, Digera arvensis, Trianthema portulacastrum, Commelina benghalensis, and Parthenium hysterophorus. At 60DAS significantly lower weed density, weed dry matter and higher weed control efficiency were recorded with weed free (HW from 15DAS to harvest at 15 days interval) treatment. Hand weeding twice at 20 and 40DAS and application of oxyfluorfen @ 150 g a.i ha-1 as PE with one hand weeding at 25DAS treatments were on par each other. Higher weed density, weed dry matter and lower weed control efficiency recorded with weedy check.
Key words: Sunflower, Oxyfloufen, Pendimethalin, Quizalofop-p-ethyl, Fenoxaprop-p-ethyl, Paraquat, Hand weeding, Net returns.