RT Journal T1 INTEGRATED WEEDS MANAGEMENT IN DRY-SEEDED BASMATI RICE A1 T. H. Awan A1 M. U. Saleem A1 S. Hussain A1 S. Ahmed A1 H. H. Ali JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 29 IS 5 SP 1299 OP 1307 YR 2019 FD 2019/10/01 DO DOI NA AB

The simultaneous emergence of rice and weed seedlings under alternate wetting and drying field conditions favors high weed infestation in dry-seeded rice (DSR) systems. Due to high weed pressure in DSR, a single weed management approach often provides sub-optimal weed control. Therefore, weed management in DSR systems demands an integrated approach. Field experiments for weed management in dry-seeded rice were conducted at   Rice Research Institute, Kala Shah Kaku, Lahore, during 2010 and 2011. Weed control treatments i.e. bispyribac sodium, ethoxysulfuron, bispyribac sodium + hand weeding, ethoxysulfuron + hand weeding, single hand weeding, and double hand weeding were compared with the weedy check in a randomized complete block design. Results revealed that maximum weeds control (97.2%) was achieved in the double hand weeded plots and in the plots treated with bispyribac sodium + hand weeding (94.5%) during the first year. However, during the second-year maximum weed control (98.3%) was obtained in bispyribac sodium + hand weeded plots, which was at par with double hand weeding (93.5%) and ethoxysulfuron + hand weeding (93.0%). Bispyribac sodium + hand weeded plots produced a maximum number of tillers m-2 (338 and 297), the longest panicles (27 and 28.2 cm) with the maximum number of grains/panicle (116.3 and 121.8) during both years. The highest paddy yield (3.2-4.0 t ha-1) was also obtained from the plots where bispyribac sodium + hand weeding was performed, whereas, lowest paddy yield (0.9-1.1 t ha-1) was achieved in the nontreated plots. Results from the study concluded that integration of hand weeding with a post-emergence application of bispyribac sodium is the best weed management option in DSR for controlling weeds as well as higher paddy grain yield.

K1 Bispyribac sodium; ethoxysulfuron; herbicides; hand weeding; weed control efficiency; yield and yield components PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2019-JAPS-510