Abstract
The field experiment was conducted during kharif season 2013 and 2014 at C S Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh to assess the performance of four rice establishment techniques and four weed control measures on weed dynamics, weed control efficiency, productivity and profitability of rice. Weed dynamics were higher in direct seeded rice (DSR) as compared to transplanted rice (TPR). The highest total weed density (214-282 plants/m2) and total weed biomass (40.5-52.2 g/m2) were recorded in DSR while the lowest in TPR. The efficacy of Sesbania brown manuring was significantly higher in both DSR and TPR. Compared with the weedy plots, two hand weeding at 20 DAS/DAT and 45 DAS/DAT followed by Bispyribac sodium 25 g/ha + (Chlorimuron + metsulfuron) 4 g/ha followed by one hand weeding at 45 DAS/DAT provided significant weed control. In both seasons, weed control efficacy was better in DSR and TPR. Across the weed control measures, the mean weed control efficiency ranged from 59.8 -98.6% and 64.2-98.5% at 30 DAS and maturity stage, respectively. TPR produced the maximum rice grain yields. On an average of both years, weed control treatments produced 21 to 43% higher rice grain yield than the weedy plots.
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Claims 10
Claim · model-written summary
Weed dynamics were higher in direct seeded rice than in transplanted rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- direct seeded rice (DSR)e0
- Interactor
- weede0weed
- Outcome
- Weed dynamicse0
- Direction
- highere0
- Comparator
- transplanted rice (TPR)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e0“Weed dynamics were higher in direct seeded rice (DSR) as compared to transplanted rice (TPR)”
Claim · model-written summary
Total weed density was highest in direct seeded rice and lowest in transplanted rice.
- Taxon
- riceOryza sativat0
- Treatment
- DSRe1
- Interactor
- weede1weed
- Outcome
- total weed densitye1
- Direction
- higheste1
- Value
- 214-282 plants/m2e1
- Comparator
- TPRe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e1“The highest total weed density (214-282 plants/m2) and total weed biomass (40.5-52.2 g/m2) were recorded in DSR while the lowest in TPR”
Claim · model-written summary
Total weed biomass was highest in direct seeded rice and lowest in transplanted rice.
- Taxon
- riceOryza sativat0
- Treatment
- DSRe1
- Interactor
- weede1weed
- Outcome
- total weed biomasse1
- Direction
- higheste1
- Value
- 40.5-52.2 g/m2e1
- Comparator
- TPRe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e1“The highest total weed density (214-282 plants/m2) and total weed biomass (40.5-52.2 g/m2) were recorded in DSR while the lowest in TPR”
Claim · model-written summary
Sesbania brown manuring gave significantly higher weed control efficacy in both direct seeded and transplanted rice.
- Taxon
- riceOryza sativat0
- Treatment
- Sesbania brown manuringe2
- Outcome
- efficacye2
- Direction
- highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e2“The efficacy of Sesbania brown manuring was significantly higher in both DSR and TPR”
Claim · model-written summary
Two hand weedings followed by Bispyribac sodium plus Chlorimuron and metsulfuron and one more hand weeding provided significant weed control compared with weedy plots.
- Taxon
- riceOryza sativat0
- Treatment
- Bispyribac sodium 25 g/ha + (Chlorimuron + metsulfuron) 4 g/hae3
- Outcome
- weed controle3
- Comparator
- weedy plotse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e3“Compared with the weedy plots, two hand weeding at 20 DAS/DAT and 45 DAS/DAT followed by Bispyribac sodium 25 g/ha + (Chlorimuron + metsulfuron) 4 g/ha followed by one hand weeding at 45 DAS/DAT provided significant weed control”
Claim · model-written summary
Weed control efficacy was better in direct seeded and transplanted rice in both seasons.
- Taxon
- riceOryza sativat0
- Treatment
- DSR and TPRe4
- Outcome
- weed control efficacye4
- Direction
- bettere4
- Setting
- both seasonse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e4“In both seasons, weed control efficacy was better in DSR and TPR”
Claim · model-written summary
Mean weed control efficiency ranged from 59.8 -98.6% at 30 DAS.
- Taxon
- riceOryza sativat0
- Outcome
- mean weed control efficiencye5
- Value
- 59.8 -98.6%e5
- Qualifier
- 30 DASe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e5“Across the weed control measures, the mean weed control efficiency ranged from 59.8 -98.6% and 64.2-98.5% at 30 DAS and maturity stage, respectively”
Claim · model-written summary
Mean weed control efficiency ranged from 64.2-98.5% at maturity stage.
- Taxon
- riceOryza sativat0
- Organ / stage
- maturity stagee5
- Outcome
- mean weed control efficiencye5
- Value
- 64.2-98.5%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e5“Across the weed control measures, the mean weed control efficiency ranged from 59.8 -98.6% and 64.2-98.5% at 30 DAS and maturity stage, respectively”
Claim · model-written summary
Transplanted rice produced the maximum rice grain yields.
- Taxon
- riceOryza sativat0
- Treatment
- TPRe6
- Outcome
- rice grain yieldse6
- Direction
- maximume6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e6“TPR produced the maximum rice grain yields”
Claim · model-written summary
Weed control treatments produced 21 to 43% higher rice grain yield than weedy plots.
- Taxon
- riceOryza sativat0
- Treatment
- weed control treatmentse7
- Outcome
- rice grain yielde7
- Direction
- highere7
- Value
- 21 to 43%e7
- Comparator
- weedy plotse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e7“On an average of both years, weed control treatments produced 21 to 43% higher rice grain yield than the weedy plots”
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See all 802 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.