NextEnd INTEGRATED WEED MANAGEMENT IN RICE. Nursery Apply any one of the Pre-emergence herbicides viz., Butachlor 2 l/ha, Thiobencarb 2/ha, Pendimethalin.

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NextEnd INTEGRATED WEED MANAGEMENT IN RICE

Nursery Apply any one of the Pre-emergence herbicides viz., Butachlor 2 l/ha, Thiobencarb 2/ha, Pendimethalin 2.5 l/ha, Anilofos 1.25 l/ha on 8 th day after sowing to control weeds in the lowland nursery. Keep a thin film of water and allow it to disappear. Avoid drainage of water. This will control germinating weeds NextPreviousEnd

Transplanted Pre-emergence Use Butachlor 2.5 l/ha or Thiobencarb 2.5 l/ha or Fluchoralin 2 l/ha or Pendimethalin 3 l/ha or Anilofos 1.25 l/ha as pre-emergence application. Alternatively, pre-emergence application of herbicide mixture viz., Butachlor 1.2 l + 2,4-DEE 1.5 l/ha or Thiobencarb 1.2 l + 2,4-DEE 1.5 l/ha or Fluchoralin 1.0 l + 2,4-DEE 1.5 l/ha or Pendimethalin 1.5 l + 2,4-DEE 1.5 l/ha or Anilofos + 2,4-DEE ready mix at 1.25 l/ha followed by one hand weeding on days after transplanting will have a broad spectrum of weed control in transplanted rice. (Cont)… NextPreviousEnd

Any herbicide has to be mixed with 50 kg of sand on the day of application (3- 4 days after transplanting) and applied uniformly to the field in 2.5 cm depth of water. Water should not be drained for 2 days from the field or fresh irrigation should not be given. INTEGRATED WEED MANAGEMENT IN RICE NextPreviousEnd

Wherever there is possibility of heavy weed infestation, herbicides can also be applied with neem coated urea which could serve as carrier, three to four days after transplanting instead basal application of N at last puddling. NextPreviousEnd

If pre-emergence herbicides are not used, hand weed on 15 th day after transplanting. 2,4-D sodium salt (Fernoxone 80% WP) 1250 g dissolved in 625 l/ha of water is sprayed with a high volume sprayer, three weeks after transplanting or when the weeds are in 3-4 leaf stage. NextPreviousEnd Post-emergence

Hand weed a second time, days after transplanting,if necessary. In wet seeded rice apply Thiobencarb at 2.5 l/ha or Pretilachlor 0.9 l/ha on 4DAS/6DAS/8DAS followed by one hand weeding for effecrtive control of weeds OR Pre-emergence application of Pretilachlor + safener at 0.6 l/ha on 4DAS followed by one hand weeding on 40 DAS effectively control weeds. Wet seeded rice NextPreviousEnd Late hand weeding

Rainfed rice First weeding should be done between 15 th and 20 th day and second weeding may be done 45 days after first weeding. Or Use Thiobencarb 2.5 l/ha or Pendimethalin 3 l/ha 8 days after sowing if adequate moisture is available, followed by one hand weeding on 30 to 35 days after sowing. NextPreviousEnd

Direct seeded rice Thiobencarb/Butachlor at 2.5 l/ha as pre-emergence application one day after wetting / soaking can be applied and it should be followed by hand weeding on 30 th day. Sufficient soil moisture should be available for herbicidal use NextPreviousEnd

Semi dry rice Use Thiobencarb 3 l/ha or Pendimethalin 4 l/ha on 8 th day after sowing as sand mix if adequate moisture is available, followed by one hand weeding on days after sowing. Or Pre-emergence application of pretilachlor 0.6 l/ha followed by post emergence application of 2,4-D Na salt 1.25 kg/ha + one hand weeding on 45DAS. Previous