Abstract
A field experiment was conducted at Norman E. Borlaug Crop Research Centre, G. B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand) during kharif seasons of 2011and 2012 to study the effect of crop establishment methods and weed management practices on weed dynamics and productivity of rice. The results revealed that the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice. This treatment produced the highest number of panicles/m2 and rice grain yield (4145 and 3879 kg/ha). Among the weed management practices, application of bispyribac sodium 20 g/ha at 15 DAS/DAT followed by (fb) one HW at 35 DAS/DAT being on par to the application of penoxsulam 22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT recorded the minimum population and dry matter of total weeds and recorded the highest weed control efficiency. This treatment produced the significantly higher number of panicles/m2, grains/panicle and grain yield. Crop establishment methods and weed management practices interacted significantly and significantly higher grain yield was recorded with transplanted rice in combination with the application of bispyribac sodium 20 g/ha at 15 DAS/DAT fb one HW at 35 DAS/DAT or penoxsulam22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT.
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Claims 8
Claim · model-written summary
Transplanted rice had the lowest density and dry matter of total weeds at 60 days after sowing or transplanting.
- Taxon
- rice
Oryza sativae1 - Treatment
- transplanted ricee1
- Interactor
- total weedse1weed
- Outcome
- density and dry matter of total weedse1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
Claim · model-written summary
Transplanted rice produced the highest number of panicles per m2.
- Taxon
- riceOryza sativae2
- Treatment
- transplanted ricee1
- Outcome
- number of panicles/m2e2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
e2“This treatment produced the highest number of panicles/m2 and rice grain yield (4145 and 3879 kg/ha)”
Claim · model-written summary
Transplanted rice produced the highest grain yield, 4145 and 3879 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- transplanted ricee1
- Outcome
- rice grain yielde2
- Direction
- higheste2
- Value
- 4145 and 3879 kg/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
e2“This treatment produced the highest number of panicles/m2 and rice grain yield (4145 and 3879 kg/ha)”
Claim · model-written summary
Bispyribac sodium 20 g/ha at 15 DAS/DAT followed by one HW at 35 DAS/DAT, on par with penoxsulam, gave the minimum population and dry matter of total weeds.
- Taxon
- riceOryza sativae1
- Treatment
- bispyribac sodium 20 g/ha at 15 DAS/DATe3
- Interactor
- total weedse3weed
- Outcome
- population and dry matter of total weedse3
- Direction
- minimume3
- Comparator
- penoxsulam 22.5 g/ha at 2-3 leaf stage of weedse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
e3“application of bispyribac sodium 20 g/ha at 15 DAS/DAT followed by (fb) one HW at 35 DAS/DAT being on par to the application of penoxsulam 22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT recorded the minimum population and dry matter of total weeds and recorded the highest weed control efficiency”
Claim · model-written summary
Bispyribac sodium 20 g/ha at 15 DAS/DAT followed by one HW at 35 DAS/DAT gave the highest weed control efficiency.
- Taxon
- riceOryza sativae1
- Treatment
- bispyribac sodium 20 g/ha at 15 DAS/DATe3
- Interactor
- weedse3weed
- Outcome
- weed control efficiencye3
- Direction
- higheste3
- Comparator
- penoxsulam 22.5 g/ha at 2-3 leaf stage of weedse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
e3“application of bispyribac sodium 20 g/ha at 15 DAS/DAT followed by (fb) one HW at 35 DAS/DAT being on par to the application of penoxsulam 22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT recorded the minimum population and dry matter of total weeds and recorded the highest weed control efficiency”
Claim · model-written summary
Transplanted rice in the treatment combinations had significantly higher numbers of panicles/m2 and grains/panicle and significantly higher grain yield.
- Taxon
- riceOryza sativae1
- Outcome
- number of panicles/m2, grains/panicle and grain yielde4
- Direction
- significantly highere4
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the lowest density and dry matter of total weeds at 60 days after sowing/days after transplanting was obtained with transplanted rice”
e4“This treatment produced the significantly higher number of panicles/m2, grains/panicle and grain yield”
Claim · model-written summary
Transplanted rice with bispyribac sodium 20 g/ha at 15 DAS/DAT fb one HW at 35 DAS/DAT gave significantly higher grain yield.
- Taxon
- riceOryza sativae5
- Treatment
- transplanted rice in combination with the application of bispyribac sodium 20 g/ha at 15 DAS/DAT fb one HW at 35 DAS/DATe5
- Outcome
- grain yielde5
- Direction
- significantly highere5
- Qualifier
- interacted significantlye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“significantly higher grain yield was recorded with transplanted rice in combination with the application of bispyribac sodium 20 g/ha at 15 DAS/DAT fb one HW at 35 DAS/DAT or penoxsulam22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT”
e6“Crop establishment methods and weed management practices interacted significantly”
Claim · model-written summary
Transplanted rice with penoxsulam 22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT gave significantly higher grain yield.
- Taxon
- riceOryza sativae5
- Treatment
- penoxsulam22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DATe5
- Outcome
- grain yielde5
- Direction
- significantly highere5
- Qualifier
- transplanted rice in combination withe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“significantly higher grain yield was recorded with transplanted rice in combination with the application of bispyribac sodium 20 g/ha at 15 DAS/DAT fb one HW at 35 DAS/DAT or penoxsulam22.5 g/ha at 2-3 leaf stage of weeds fb one HW at 35 DAS/DAT”
e6“Crop establishment methods and weed management practices interacted significantly”
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