Abstract
Field experiments were conducted during Rabi (winter season) 2018–19 and 2019–20 to study the effect of sequential application of herbicides on productivity and profitability of transplanted rice. Pre-emergence (PE) application of pretilachlor 750 g/ha fb ready-mix post-emergence (PoE) application of triafamone + ethoxysulfuron 60 g/ha recorded significantly higher grain yield which was found to be at par with two hand weedings. Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check. Tank-mix application of fenoxaprop-p-ethyl 60 g/ha with ethoxysulfuron 18.75 g/ha or chlorimuron + metsulfuron 4 g/ha after pretilachlor 750 g/ha showed phytotoxicity at 5 days after application (DAA) of herbicide, which got recovered at 30 DAA.
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Claims 9
Claim · model-written summary
Sequential pretilachlor followed by triafamone and ethoxysulfuron gave significantly higher grain yield, statistically at par with two hand weedings.
Verbatim
e0“Pre-emergence (PE) application of pretilachlor 750 g/ha fb ready-mix post-emergence (PoE) application of triafamone + ethoxysulfuron 60 g/ha recorded significantly higher grain yield which was found to be at par with two hand weedings”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides minimized total weed biomass to 5 g/m2 compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides minimized weed index to 4% compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides enhanced weed control efficiency to 96% compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides enhanced grain yield to 5.4 t/ha compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides enhanced net returns to 47.0 xlO3 ?Vha compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
The sequential herbicides enhanced benefit cost ratio to 1.9 compared with weedy check.
Verbatim
e0“Sequential application of pretilachlor 750 g/ha fb triafamone + ethoxysulfuron 60 g/ha proved to be more effective in minimising total weed biomass (5 g/m2), weed index (4%) and enhancing weed control efficiency (96%), grain yield (5.4 t/ha), net returns (47.0 xlO3 ?Vha) and benefit cost ratio (1.9) than weedy check”
t0“transplanted rice”
Claim · model-written summary
Fenoxaprop-p-ethyl plus ethoxysulfuron after pretilachlor caused transient phytotoxicity at day 5, with recovery by day 30.
- Taxon
- transplanted ricet0
- Treatment
- fenoxaprop-p-ethyl 60 g/ha with ethoxysulfuron 18.75 g/hae0
- Outcome
- phytotoxicitye0
- Qualifier
- at 5 days after application (DAA) of herbicide, which got recovered at 30 DAAe0
Not reportedComparatorDirection
Verbatim
e0“Tank-mix application of fenoxaprop-p-ethyl 60 g/ha with ethoxysulfuron 18.75 g/ha or chlorimuron + metsulfuron 4 g/ha after pretilachlor 750 g/ha showed phytotoxicity at 5 days after application (DAA) of herbicide, which got recovered at 30 DAA”
t0“transplanted rice”
Claim · model-written summary
Chlorimuron plus metsulfuron after pretilachlor caused transient phytotoxicity at day 5, with recovery by day 30.
- Taxon
- transplanted ricet0
- Treatment
- chlorimuron + metsulfuron 4 g/ha after pretilachlor 750 g/hae0
- Outcome
- phytotoxicitye0
- Qualifier
- at 5 days after application (DAA) of herbicide, which got recovered at 30 DAAe0
Not reportedComparatorDirection
Verbatim
e0“Tank-mix application of fenoxaprop-p-ethyl 60 g/ha with ethoxysulfuron 18.75 g/ha or chlorimuron + metsulfuron 4 g/ha after pretilachlor 750 g/ha showed phytotoxicity at 5 days after application (DAA) of herbicide, which got recovered at 30 DAA”
t0“transplanted rice”
The same questions in other 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
- negative
- 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
- positive
- negative
- negative
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See all 150 papers →chlorimuron · crop injury · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
Ethoxysulfuron · crop injury · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- no effect
Pretilachlor · crop injury · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
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See all 10 papers →Ethoxysulfuron · yield · Oryza sativa (rice)Positive and negative results
32 papers in the same direction as this paper · 1 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
33 papers more in this group
See all 37 papers →Ethoxysulfuron · weed · Oryza sativa (rice)Positive and negative results
35 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- positive
34 papers more in this group
See all 38 papers →metsulfuron methyl · crop injury · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- negative
8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.