Abstract
The field study was conducted during kharif 2010 at N.E. Borlaug Crop Research Centre of G.B. PantUniversity of Agriculture and Technology, Pantnagar to evaluate the efficacy of different herbicides for direct seeded puddled rice. Nine weed control treatments were laid out in randomized block design with four replications. Results revealed that the major weed species in experimental site were Echinochloa colona L., Echinochloa crusgalli L., Cyperus rotundus L., Cyperus difformis L. Caesulia axillaris L. and Commelina benghalensis L. Grasses constituted the highest percentage (59.17) of weed population followed by broad leaves (23.85). Among the herbicides, lowest weed population was observed with the application of penoxsulam 25 g/ha at 30 and 90 DAS. The highest grain yield (4.56 t/ha) was recorded in weed free check treatment followed by two hand weeding treatment (4.09 t/ha) which was statistically at par with penoxsulam 25 g/ha, bispyribac sodium 25 g/ha and pyrazosulfuron ethyl 20 g/ha. All the weed control treatments caused significant reduction in uptake of nutrients by weeds over weedy check.
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Claims 6
Claim · model-written summary
Penoxsulam 25 g/ha gave the lowest weed population at 30 and 90 DAS in direct-seeded rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- penoxsulam 25 g/hae4
- Interactor
- weede4weed
- Outcome
- weed populatione4
- Direction
- loweste4
- Qualifier
- at 30 and 90 DASe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e4“Among the herbicides, lowest weed population was observed with the application of penoxsulam 25 g/ha at 30 and 90 DAS”
Claim · model-written summary
The weed free check treatment gave the highest grain yield, 4.56 t/ha, in rice.
- Taxon
- riceOryza sativae0
- Treatment
- weed free check treatmente2
- Outcome
- grain yielde2
- Direction
- higheste2
- Value
- 4.56 t/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e2“The highest grain yield (4.56 t/ha) was recorded in weed free check treatment followed by two hand weeding treatment (4.09 t/ha) which was statistically at par with penoxsulam 25 g/ha, bispyribac sodium 25 g/ha and pyrazosulfuron ethyl 20 g/ha”
Claim · model-written summary
Two hand weeding gave 4.09 t/ha grain yield, statistically at par with penoxsulam, bispyribac sodium and pyrazosulfuron ethyl.
- Taxon
- riceOryza sativae0
- Treatment
- two hand weedinge2
- Outcome
- grain yielde2
- Direction
- statistically at pare2
- Value
- 4.09 t/hae2
- Comparator
- penoxsulam 25 g/ha, bispyribac sodium 25 g/ha and pyrazosulfuron ethyl 20 g/hae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e2“The highest grain yield (4.56 t/ha) was recorded in weed free check treatment followed by two hand weeding treatment (4.09 t/ha) which was statistically at par with penoxsulam 25 g/ha, bispyribac sodium 25 g/ha and pyrazosulfuron ethyl 20 g/ha”
Claim · model-written summary
All weed control treatments significantly reduced nutrient uptake by weeds compared with the weedy check.
- Taxon
- riceOryza sativae0
- Treatment
- weed control treatmentse3
- Interactor
- weedse3weed
- Outcome
- uptake of nutrients by weedse3
- Direction
- reductione3
- Comparator
- weedy checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e3“All the weed control treatments caused significant reduction in uptake of nutrients by weeds over weedy check”
Claim · model-written summary
Grasses made up the highest share of the weed population, 59.17%.
- Taxon
- riceOryza sativae0
- Outcome
- weed populatione5
- Value
- 59.17e5
- Qualifier
- Grasses constituted the highest percentagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e5“Grasses constituted the highest percentage (59.17) of weed population followed by broad leaves (23.85)”
Claim · model-written summary
The major weed species in the rice field included Echinochloa colona and Cyperus rotundus.
- Taxon
- riceOryza sativae0
- Interactor
- Echinochloa colona
Echinochloa colonae6weed - Second interactor
- Cyperus rotundus
Cyperus rotunduse6weed - Outcome
- major weed speciese6
- Qualifier
- Commelina benghalensis L.e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the efficacy of different herbicides for direct seeded puddled rice”
e6“Results revealed that the major weed species in experimental site were Echinochloa colona L., Echinochloa crusgalli L., Cyperus rotundus L., Cyperus difformis L. Caesulia axillaris L. and Commelina benghalensis L.”
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