Use rotary weeder from 15 DAT at 10 days interval. It will save labor for weeding, aerates the soil and root zone, prolongs the root activity, and will also improve the grain filling by efficient translocation and ultimately the grain yield. Cultural practices such as dual cropping of rice-azolla and rice-green manure reduce the weed infestation to a greater extent. Summer ploughing and cultivation of irrigated dry crops in post-rainy periods will reduce the weed infestation. Pre-emergence herbicides Use Butachlor 1.25kg/ha or Anilophos 0.4kg/ha as pre-emergence application. Alternatively, pre-emergence application of herbicide mixture viz., Butachlor 0.6kg + 2,4 DEE 0.75kg per hectare, or Anilophos+ 2, 4 DEE ‘ready-mix’ at 0.4kg/ha followed by one hand weeding on 30 - 35 DAT will have a broad spectrum of weed control. Any herbicide has to be mixed with 50kg of dry sand on the day of application (3 - 4 DAT) and applied uniformly to the field with thin-film water on the 3rd DAT. Water should not be drained for the next 2 days from the field (or) fresh irrigation must not be given. Pre-emergence application of pretilachor at 1.0 kg a.i. ha-1 on 3 DAT + weeding with Twin row rotary weeder at 40 DAT PE Pyrazosulfuron ethyl 10 % WP @ 150 g ha-1 on 3 DAT + hand weeding (HW) on 45 DAT. PE butachlor 0.75 kg a.i. ha-1 + bensulfuron methyl 50 g ha-1 on 3 DAT + HW on 45 DAT PE Oxadiazon 87.5 g a.i. ha-1 to be followed by Postemergence (POE) 2,4-D 1 kg a.i. ha-1   along with hand weeding on 35 DAT. PE butachlor 0.75 kg per hectare + bensulfuron methyl 50 g ha-1 on 3 DAT must be followed by mechanical weeding on 45 DAT is effective for broad-spectrum weed control. Crop growth and yield were enhanced by butachlor 1.2 + 2, 4-DEE 1.5 lit ha-1 with 100% inorganic nitrogen. Conventional tillage of one dry ploughing and two passes of cage wheel puddling combined with the pre-emergence application of butachlor at 1.25 kg ha-1 under lowland situation. 50kg of dry sand + Butachlor 1.25 kg per hectare It must be noted that, if pre-emergence herbicide application is not done, hand weeding has to be done on 15th DAT. 2,4-D sodium salt (Fernoxone 80% WP) 1.25 kg/ha dissolved in 625 litres with a high volume sprayer, three weeks after transplanting or when the weeds are in 3 - 4 leaf stage. Early post-emergence application of Bispyripac sodium 50 g a.i. ha-1 (2-3 leaf stage of weeds) + Hand weeding on 45 DAT