Abstract
A field experiment was conducted in a randomized block design during the rainy (kharif) season of 2012 at Pantnagar, Uttarakhand, to evaluate the effect of different weed-control treatments on productivity, nutrient deple- tion by weeds as well as uptake by rice (Oryza sativa L.). Weed-management practices significantly influenced yield, nutrient uptake by rice and depletion by weeds. Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds. This treatment also registered the maximum total N, P and K uptake by rice (116.3, 35.6, and 108.7 kg/ha) and significantly higher grain (5.73 t/ha) as well as straw (8.39 t/ha) yields over pre-emergence application of pretilachlor , pretilachlor + no irrigation up to 1 week and cono weeding fb 1 hand-weeding, but remained at par with the other treatments. Application of penoxsulam at both the doses (22.5 and 25 g/ha) was at par with bispyribac-Na 20 g/ha in terms of grain and straw yields.
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Claims 11
Claim · model-written summary
Weed-management practices significantly influenced rice yield, nutrient uptake, and weed nutrient depletion.
- Taxon
- rice
Oryza sativae0 - Treatment
- Weed-management practicese0
- Interactor
- weedse0weed
- Outcome
- yield, nutrient uptake by rice and depletion by weedse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed-management practices significantly influenced yield, nutrient uptake by rice and depletion by weeds.”
Claim · model-written summary
Pretilachlor plus temporary irrigation withholding followed by bispyribac reduced N removal by weeds.
- Taxon
- riceOryza sativat0
- Treatment
- Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha)e0
- Interactor
- weedse0weed
- Outcome
- N, P and K removal by the weedse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“rice (Oryza sativa)”
t1“rice (Oryza sativa)”
Claim · model-written summary
The combined herbicide and irrigation treatment significantly reduced P removal by weeds.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlore1
- Interactor
- weedse0weed
- Outcome
- N, P and K removal by the weedse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant reduction in N, P and K removal by the weeds”
e1“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
t1“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
Claim · model-written summary
The combined herbicide and irrigation treatment significantly reduced K removal by weeds.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlore1
- Interactor
- weedse0weed
- Outcome
- N, P and K removal by the weedse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant reduction in N, P and K removal by the weeds”
e1“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
t1“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
Claim · model-written summary
The combined treatment gave maximum rice N uptake of 116.3 kg/ha.
- Taxon
- riceOryza sativae0
- Treatment
- pretilachlore1
- Outcome
- N, P and K uptake by ricee0
- Direction
- maximume0
- Value
- 116.3e0
- Qualifier
- kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total N, P and K uptake by rice (116.3, 35.6, and 108.7 kg/ha)”
e1“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
t1“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
Claim · model-written summary
The combined treatment gave maximum rice P uptake of 35.6 kg/ha.
- Taxon
- riceOryza sativae0
- Treatment
- pretilachlore1
- Outcome
- N, P and K uptake by ricee0
- Direction
- maximume0
- Value
- 35.6e0
- Qualifier
- kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total N, P and K uptake by rice (116.3, 35.6, and 108.7 kg/ha)”
e1“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
t1“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
Claim · model-written summary
The combined treatment gave maximum rice K uptake of 108.7 kg/ha.
- Taxon
- riceOryza sativae0
- Treatment
- pretilachlore1
- Outcome
- N, P and K uptake by ricee0
- Direction
- maximume0
- Value
- 108.7e0
- Qualifier
- kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total N, P and K uptake by rice (116.3, 35.6, and 108.7 kg/ha)”
e1“Pre-emergence application of pretilachlor 750 g/ha + no irri- gation up to 1 week followed by (fb) early post-emergence application of bispyribac-Na (20 g/ha) provided broad- spectrum weed-control, resulting in significant reduction in N, P and K removal by the weeds.”
t0“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
t1“Effect of weed management practices on productivity, nutrient depletion by weeds and uptake by transplanted rice (Oryza sativa)”
Claim · model-written summary
The combined treatment produced significantly higher rice grain yield of 5.73 t/ha than specified comparison treatments.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlore0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- 5.73 t/hae0
- Comparator
- cono weeding fb 1 hand-weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher grain (5.73 t/ha) as well as straw (8.39 t/ha) yields over pre-emergence application of pretilachlor , pretilachlor + no irrigation up to 1 week and cono weeding fb 1 hand-weeding”
t0“rice (Oryza sativa)”
t1“rice (Oryza sativa)”
Claim · model-written summary
The combined treatment produced significantly higher rice straw yield of 8.39 t/ha than specified comparison treatments.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlore0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- 8.39 t/hae0
- Comparator
- cono weeding fb 1 hand-weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly higher grain (5.73 t/ha) as well as straw (8.39 t/ha) yields over pre-emergence application of pretilachlor , pretilachlor + no irrigation up to 1 week and cono weeding fb 1 hand-weeding”
t0“rice (Oryza sativa)”
t1“rice (Oryza sativa)”
Claim · model-written summary
Penoxsulam at 22.5 g/ha was comparable to bispyribac-Na 20 g/ha for grain and straw yields.
- Taxon
- riceOryza sativat0
- Treatment
- penoxsulame0
- Outcome
- grain and straw yieldse0
- Direction
- at pare0
- Qualifier
- 22.5e0
- Comparator
- bispyribac-Na 20 g/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“penoxsulam at both the doses (22.5 and 25 g/ha) was at par with bispyribac-Na 20 g/ha in terms of grain and straw yields.”
t0“rice (Oryza sativa)”
t1“rice (Oryza sativa)”
Claim · model-written summary
Penoxsulam at 25 g/ha was comparable to bispyribac-Na 20 g/ha for grain and straw yields.
- Taxon
- riceOryza sativat0
- Treatment
- penoxsulame0
- Outcome
- grain and straw yieldse0
- Direction
- at pare0
- Qualifier
- 25 g/hae0
- Comparator
- bispyribac-Na 20 g/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“penoxsulam at both the doses (22.5 and 25 g/ha) was at par with bispyribac-Na 20 g/ha in terms of grain and straw yields.”
t0“rice (Oryza sativa)”
t1“rice (Oryza sativa)”
The same questions in other papers
Penoxsulam · yield · Oryza sativa (rice)Results differ
11 papers in the same direction as this paper · 75 in the opposite direction
- positive
- positive
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See all 87 papers →Pretilachlor · yield · Oryza sativa (rice)Results differ
132 papers in the same direction as this paper · 3 in the opposite direction · 5 reporting no difference from an alternative
- negative
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- no effect
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See all 141 papers →Pretilachlor · weed · Oryza sativa (rice)Results differ
146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
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See all 150 papers →Pretilachlor · nutrient: content · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
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See all 9 papers →herbicide · weed · Oryza sativa (rice)Positive and negative results
578 papers in the same direction as this paper · 17 in the opposite direction · 7 reporting no difference from an alternative
- positive
- positive
- negative
599 papers more in this group
See all 603 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.