Abstract
The efficacy of bensulfuron-methyl alone or as tank mixture with pretilachlor was evaluated in conjunction with recommended herbicides pretilachlor and pyrazosulfuron-ethyl for controlling sedges and broad leaf weeds in wet direct- sown summer rice during the dry season of 2006 and 2007 at Cuttack. The major weed flora constituting in weedy plots were Echinochloa colona (8.7%), Cyperus difformis (26.1%), Fimbristylis miliacea (14.5%), Sphenochlea zeylanica (27.5%) and Marsilea quadrifolia (23.2%) at 30 days after sowing (DAS). Bensulfuron-methyl either alone at 60 g ha−1 or as tank mixture with pretilachlor (50+450 g ha−1) applied at 20 DAS were found to be equally effective in controlling weeds (weed control efficiency 90.0 and 92.2%, respectively) and produced comparable grain yield of 5.48 and 5.53 t ha−1, respectively. Both these herbicide treatments were at par with recommended practice of hand weeding twice at 20 and 40 DAS in terms of weed control efficiency (WCE) and grain yield. Bensulfuron-methyl at 30 to 60 g ha−1 applied alone or as tank mixture with pretilachlor at 450 g ha−1 was found superior in reducing the total weed density and dry matter production with WCE of 80–92.2% in comparison to the recommended herbicides pretilachlor and pyrazosulfuron-ethyl with WCE of 74 and 75.8% respectively. There was more than 49% reduction in the grain yield of rice due to competition with weeds in weedy plots.
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Claims 12
Claim · model-written summary
Weedy plots contained Echinochloa colona at 8.7%.
- Taxon
- rice
Oryza sativat0 - Interactor
- Echinochloa colona
Echinochloa colonae0weed - Outcome
- Echinochloa colonae0
- Value
- 8.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Echinochloa colona (8.7%)”
t0“rice”
Claim · model-written summary
Weedy plots contained Cyperus difformis at 26.1%.
- Taxon
- riceOryza sativat0
- Interactor
- Cyperus difformis
Cyperus difformise0weed - Outcome
- Cyperus difformise0
- Value
- 26.1%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyperus difformis (26.1%)”
t0“rice”
Claim · model-written summary
Weedy plots contained Fimbristylis miliacea at 14.5%.
- Taxon
- riceOryza sativat0
- Interactor
- Fimbristylis miliacea
Fimbristylis quinquangularise0weed - Outcome
- Fimbristylis miliaceae0
- Value
- 14.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fimbristylis miliacea (14.5%)”
t0“rice”
Claim · model-written summary
Weedy plots contained Sphenochlea zeylanica at 27.5%.
- Taxon
- riceOryza sativat0
- Interactor
- Sphenochlea zeylanicae0weed
- Outcome
- Sphenochlea zeylanicae0
- Value
- 27.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sphenochlea zeylanica (27.5%)”
t0“rice”
Claim · model-written summary
Weedy plots contained Marsilea quadrifolia at 23.2%.
- Taxon
- riceOryza sativat0
- Interactor
- Marsilea quadrifolia
Marsilea quadrifoliae0weed - Outcome
- Marsilea quadrifoliae0
- Value
- 23.2%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marsilea quadrifolia (23.2%)”
t0“rice”
Claim · model-written summary
Bensulfuron-methyl alone achieved 90.0% weed control efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- Bensulfuron-methyl either alone at 60 g ha−1e0
- Outcome
- weed control efficiencye0
- Direction
- effectivee0
- Value
- 90.0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bensulfuron-methyl either alone at 60 g ha−1 or as tank mixture with pretilachlor (50+450 g ha−1) applied at 20 DAS were found to be equally effective in controlling weeds (weed control efficiency 90.0 and 92.2%, respectively)”
t0“rice”
Claim · model-written summary
The bensulfuron-methyl and pretilachlor mixture achieved 92.2% weed control efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- tank mixture with pretilachlor (50+450 g ha−1)e0
- Outcome
- weed control efficiencye0
- Direction
- effectivee0
- Value
- 92.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tank mixture with pretilachlor (50+450 g ha−1) applied at 20 DAS were found to be equally effective in controlling weeds (weed control efficiency 90.0 and 92.2%, respectively)”
t0“rice”
Claim · model-written summary
Bensulfuron-methyl alone produced 5.48 t ha−1 grain yield.
- Taxon
- riceOryza sativat0
- Outcome
- grain yielde0
- Direction
- comparablee0
- Value
- 5.48e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“produced comparable grain yield of 5.48 and 5.53 t ha−1, respectively”
t0“rice”
Claim · model-written summary
The mixture produced 5.53 t ha−1 grain yield.
- Taxon
- riceOryza sativat0
- Outcome
- grain yielde0
- Direction
- comparablee0
- Value
- 5.53 t ha−1e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“produced comparable grain yield of 5.48 and 5.53 t ha−1, respectively”
t0“rice”
Claim · model-written summary
Both herbicide treatments were at par with twice hand weeding for weed control and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- Both these herbicide treatmentse0
- Outcome
- weed control efficiency (WCE) and grain yielde0
- Direction
- at pare0
- Comparator
- hand weeding twice at 20 and 40 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both these herbicide treatments were at par with recommended practice of hand weeding twice at 20 and 40 DAS in terms of weed control efficiency (WCE) and grain yield”
t0“rice”
Claim · model-written summary
Bensulfuron-methyl treatments reduced total weed density and dry matter production more than recommended herbicides.
- Taxon
- riceOryza sativat0
- Treatment
- Bensulfuron-methyl at 30 to 60 g ha−1 applied alone or as tank mixture with pretilachlor at 450 g ha−1e0
- Outcome
- total weed density and dry matter productione0
- Direction
- reducinge0
- Value
- 80–92.2%e0
- Comparator
- recommended herbicides pretilachlor and pyrazosulfuron-ethyle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bensulfuron-methyl at 30 to 60 g ha−1 applied alone or as tank mixture with pretilachlor at 450 g ha−1 was found superior in reducing the total weed density and dry matter production with WCE of 80–92.2% in comparison to the recommended herbicides pretilachlor and pyrazosulfuron-ethyl with WCE of 74 and 75.8% respectively”
t0“rice”
Claim · model-written summary
Weed competition reduced rice grain yield by more than 49% in weedy plots.
- Taxon
- riceOryza sativae0
- Interactor
- weedse0weed
- Outcome
- grain yield of ricee0
- Direction
- reductione0
- Value
- more than 49%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was more than 49% reduction in the grain yield of rice due to competition with weeds in weedy plots”
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23 papers in the same direction as this paper · 579 reporting no difference from an alternative
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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.