Abstract
Field experiment was conducted during winter seasons of 1995–96 and 1996–97 to evaluate efficacy of herbicides in zero-till wheat in rice-wheat cropping system. More weed emergence was recorded in conventional tillage (146 m−2) and reduced tillage (141 m−2) than in zero tillage system (103 m−2, at 30 days stage. P. minor was the dominant weed constituting 73, 57 and 58% of total weed density at 30 days stage in weedy conditions under conventional, reduced and zero tillage system, respectively. The maximum reduction in weed density and dry matter was obtained with application of diclofop methyl+isoproturon (0.84+0.75 kg ha−1) as tank mixture under zero tillage system. The highest average grain yield (3872 kg ha−1) was achieved under zero-till weed-free which was at par with conventional tillage weed-free situation. Tillage systems did not affect performance of isoproturon. Isoproturon alone or with 2, 4-D or diclofop methyl as tank mixture or diclofop methyl alone or tralkoxydim being at par with weed-free resulted in higher grain yield than the paraquat and weedy check under zero tillage system.
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Claims 10
Claim · model-written summary
Weed emergence was higher under conventional than zero tillage.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- conventional tillagee0
- Interactor
- weede0weed
- Outcome
- weed emergencee0
- Direction
- Moree0
- Value
- 146 m−2e0
- Qualifier
- 103 m−2e0
- Comparator
- zero tillage systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More weed emergence was recorded in conventional tillage (146 m−2) and reduced tillage (141 m−2) than in zero tillage system (103 m−2, at 30 days stage.”
t0“Zero-Till Wheat”
Claim · model-written summary
Weed emergence was higher under reduced than zero tillage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- reduced tillagee0
- Interactor
- weede0weed
- Outcome
- weed emergencee0
- Direction
- Moree0
- Value
- 141 m−2e0
- Qualifier
- 103 m−2e0
- Comparator
- zero tillage systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More weed emergence was recorded in conventional tillage (146 m−2) and reduced tillage (141 m−2) than in zero tillage system (103 m−2, at 30 days stage.”
t0“Zero-Till Wheat”
Claim · model-written summary
P. minor constituted 73% of weed density under conventional tillage.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- P. minore0weed
- Outcome
- P. minor was the dominant weede0
- Value
- 73e0
- Setting
- conventionale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. minor was the dominant weed constituting 73, 57 and 58% of total weed density at 30 days stage in weedy conditions under conventional, reduced and zero tillage system, respectively.”
t0“Zero-Till Wheat”
Claim · model-written summary
P. minor constituted 57% of weed density under reduced tillage.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- P. minore0weed
- Outcome
- total weed densitye0
- Value
- 57e0
- Setting
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. minor was the dominant weed constituting 73, 57 and 58% of total weed density at 30 days stage in weedy conditions under conventional, reduced and zero tillage system, respectively.”
t0“Zero-Till Wheat”
Claim · model-written summary
P. minor constituted 58% of weed density under zero tillage.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- P. minore0weed
- Outcome
- total weed densitye0
- Value
- 58%e0
- Setting
- zero tillage systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. minor was the dominant weed constituting 73, 57 and 58% of total weed density at 30 days stage in weedy conditions under conventional, reduced and zero tillage system, respectively.”
t0“Zero-Till Wheat”
Claim · model-written summary
Diclofop methyl plus isoproturon gave maximum weed-density reduction under zero tillage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- diclofop methyl+isoproturon (0.84+0.75 kg ha−1)e0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- maximum reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum reduction in weed density and dry matter was obtained with application of diclofop methyl+isoproturon (0.84+0.75 kg ha−1) as tank mixture under zero tillage system.”
t0“Zero-Till Wheat”
Claim · model-written summary
Diclofop methyl plus isoproturon gave maximum weed dry matter reduction under zero tillage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- diclofop methyl+isoproturon (0.84+0.75 kg ha−1)e0
- Interactor
- weede0weed
- Outcome
- dry mattere0
- Direction
- maximum reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum reduction in weed density and dry matter was obtained with application of diclofop methyl+isoproturon (0.84+0.75 kg ha−1) as tank mixture under zero tillage system.”
t0“Zero-Till Wheat”
Claim · model-written summary
Zero-till weed-free wheat had the highest average grain yield, at par with conventional weed-free.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- zero-till weed-freee0
- Outcome
- average grain yielde0
- Direction
- higheste0
- Value
- 3872 kg ha−1e0
- Comparator
- conventional tillage weed-freee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest average grain yield (3872 kg ha−1) was achieved under zero-till weed-free which was at par with conventional tillage weed-free situation.”
t0“Zero-Till Wheat”
Claim · model-written summary
Tillage systems did not affect isoproturon performance.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Tillage systemse0
- Outcome
- performance of isoproturone0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage systems did not affect performance of isoproturon.”
t0“Zero-Till Wheat”
Claim · model-written summary
Isoproturon-based and other listed herbicide treatments gave higher wheat yield than paraquat and weedy check under zero tillage.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Isoproturon alone or with 2, 4-D or diclofop methyl as tank mixture or diclofop methyl alone or tralkoxydime0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- paraquat and weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isoproturon alone or with 2, 4-D or diclofop methyl as tank mixture or diclofop methyl alone or tralkoxydim being at par with weed-free resulted in higher grain yield than the paraquat and weedy check under zero tillage system.”
t0“Zero-Till Wheat”
The same questions in other papers
isoproturon · yield · Triticum aestivum (wheat)Results differ
74 papers in the same direction as this paper · 7 in the opposite direction · 7 reporting no difference from an alternative
- positive
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See all 89 papers →2,4-D · yield · Triticum aestivum (wheat)Results differ
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- positive
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2 in the opposite direction
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tralkoxydim · yield · Triticum aestivum (wheat)Positive and negative results
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- no effect
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See all 57 papers →herbicide · yield · Triticum aestivum (wheat)Positive and negative results
465 papers in the same direction as this paper · 87 in the opposite direction · 10 reporting no difference from an alternative
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See all 563 papers →8 of 9 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.