Abstract
A field experiment was conducted during the summer of 2023 at Tamil Nadu Agricultural University, Coimbatore, to evaluate the effects of various pre- and post-emergence herbicide combinations on weed dynamics and productivity in wet direct-seeded rice. The experiment employed a randomized block design with ten treatments replicated three times. The study assessed various weed management practices, including pre-emergence herbicides followed by post-emergence herbicides, pre-emergence herbicides followed by hand weeding, post-emergence herbicides followed by hand weeding, and the farmer's practice of two hand weedings. Key observations included weed flora, density, dry weight and crop parameters such as plant height, leaf area index, total dry matter production and yield attributes. The study found that, Echinochloa colona and Leptochloa chinensis were the dominant grasses, Cyperus difformis was the dominant sedge and Eclipta prostrata was the prominent broad-leaved weed. The pre-emergence application of pretilachlor + pyrazosulfuron ethyl effectively controlled grasses, sedges and broadleaf weeds, particularly at 20 DAS. The ready-mix formulation of pendimethalin followed by triafamone + ethoxysulfuron was most effective at 40 DAS and harvest, significantly reducing weed density and improving yield parameters.
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Claims 6
Claim · model-written summary
Echinochloa colona and Leptochloa chinensis were dominant grasses.
- Taxon
- rice
Oryza sativat0 - Interactor
- Echinochloa colona
Echinochloa colonae0weed - Outcome
- dominant grassese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Echinochloa colona and Leptochloa chinensis were the dominant grasses”
t0“rice ecosystem”
Claim · model-written summary
Cyperus difformis was the dominant sedge.
- Taxon
- riceOryza sativat0
- Interactor
- Cyperus difformis
Cyperus difformise0weed - Outcome
- dominant sedgee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyperus difformis was the dominant sedge”
t0“rice ecosystem”
Claim · model-written summary
Eclipta prostrata was the prominent broad-leaved weed.
- Taxon
- riceOryza sativat0
- Interactor
- Eclipta prostrata
Eclipta prostratae0weed - Outcome
- prominent broad-leaved weede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eclipta prostrata was the prominent broad-leaved weed”
t0“rice ecosystem”
Claim · model-written summary
Pretilachlor plus pyrazosulfuron ethyl controlled grasses, sedges and broadleaf weeds at 20 DAS.
- Taxon
- riceOryza sativat0
- Treatment
- pre-emergence application of pretilachlor + pyrazosulfuron ethyle0
- Outcome
- grasses, sedges and broadleaf weedse0
- Direction
- controllede0
- Qualifier
- 20 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-emergence application of pretilachlor + pyrazosulfuron ethyl effectively controlled grasses, sedges and broadleaf weeds, particularly at 20 DAS”
t0“rice ecosystem”
Claim · model-written summary
Pendimethalin followed by triafamone plus ethoxysulfuron reduced weed density at 40 DAS and harvest.
- Taxon
- riceOryza sativat0
- Treatment
- pendimethalin followed by triafamone + ethoxysulfurone0
- Outcome
- weed densitye0
- Direction
- reducinge0
- Qualifier
- 40 DAS and harveste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ready-mix formulation of pendimethalin followed by triafamone + ethoxysulfuron was most effective at 40 DAS and harvest, significantly reducing weed density and improving yield parameters”
t0“rice ecosystem”
Claim · model-written summary
Pendimethalin followed by triafamone plus ethoxysulfuron improved yield parameters.
- Taxon
- riceOryza sativat0
- Treatment
- pendimethalin followed by triafamone + ethoxysulfurone0
- Outcome
- yield parameterse0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ready-mix formulation of pendimethalin followed by triafamone + ethoxysulfuron was most effective at 40 DAS and harvest, significantly reducing weed density and improving yield parameters”
t0“rice ecosystem”
The same questions in other papers
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- negative
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16 papers in the same direction as this paper
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See all 17 papers →triafamone · weed · Oryza sativa (rice)Results agree
17 papers in the same direction as this paper
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See all 18 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.