Department of Agronomy, G. B. Pant University of Agriculture & Technology, Pantnagar-263 145 (Uttaranchal), India.
1 Sardar Vallabh Bhai Patel University of Agri. & Tech., Meerut (U. P.), India.
The field experiment was conducted during the kharif seasons of 1996 and 1997. Cyperus rotundus, Cynodon dactylon, Trianthema monogyna, Cyperus iria and Panicum spp. were the dominant weeds. Out of 10 weed control treatments, when averaged over both the years, the maximum colton yield of 1140 kg ha−1 was obtained in hand weeding 30 and 60 DAS and was at par with pendimethalin 1 kg ha−1 fb hand weeding 30 DAS and alachlor 2 kg ha−1 fb hand weeding 30 DAS. Minimum cotton yield of 798 kg ha−1 was obtained in weedy check.
