Abstract
A field experiment was conducted at Agriculture Research Farm, Bihar Agricultural University, Sabour, Bhagalpur, Bihar during kharif season of 2018-19 to study the effect of different herbicides on weed species, growth attributes and yields of direct seeded rice. The experiment comprised of 11 treatments based on weed management practices. The 11 treatments were lone application of pendimethalin and pyrazosulfuron as pre-emergence herbicides while others were as post-emergence at 20 days after sowing i.e. pyrazosulfuron @ 25 g/ha PE, pendimethalin @1000 g/ha PE, pyrazosulfuron @ 25 g /ha PE fb 2,4-DEE @ 750 g/ha POE, pyrazosulfuron @ 25 g /ha PE fb bispyriba-Na @ 25 g/ha POE, pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE, bispyribac-Na @ 25 g/ha POE, bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE, ethoxysulfuron @ 15 g/ha + pyrazosulfuron @ 20 g /ha POE, halosulfuron @ 67.5 g/ha + azimsulfuron @ 30 g/ha POE, hand weeding thrice and weed check. Among all the herbicidal treatments, the minimum weed density (5.13 m-2), dry weight (4.82 g m-2), highest grain yield (5.41 t/ha) and benefit cost ratio (1.9) were recorded with application of pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE.
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Claims 4
Claim · model-written summary
The specified pyrazosulfuron and bispyribac sequence gave the minimum weed density of 5.13 m-2.
- Taxon
- rice
Oryza sativat0 - Treatment
- pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POEe0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- minimume0
- Value
- 5.13 m-2e0
- Comparator
- all the herbicidal treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum weed density (5.13 m-2), dry weight (4.82 g m-2), highest grain yield (5.41 t/ha) and benefit cost ratio (1.9) were recorded with application of pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE”
e1“Among all the herbicidal treatments”
t0“direct- seeded rice”
Claim · model-written summary
The sequence gave the minimum weed dry weight of 4.82 g m-2.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POEe0
- Interactor
- weede0weed
- Outcome
- dry weighte0
- Direction
- minimume0
- Value
- 4.82 g m-2e0
- Comparator
- all the herbicidal treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum weed density (5.13 m-2), dry weight (4.82 g m-2), highest grain yield (5.41 t/ha) and benefit cost ratio (1.9) were recorded with application of pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE”
e1“Among all the herbicidal treatments”
t0“direct- seeded rice”
Claim · model-written summary
The sequence produced the highest grain yield, 5.41 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POEe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 5.41 t/hae0
- Comparator
- all the herbicidal treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain yield (5.41 t/ha) and benefit cost ratio (1.9) were recorded with application of pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE”
e1“Among all the herbicidal treatments”
t0“direct- seeded rice”
Claim · model-written summary
The sequence produced the highest benefit cost ratio, 1.9.
- Taxon
- riceOryza sativat0
- Treatment
- pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POEe0
- Outcome
- benefit cost ratioe0
- Direction
- higheste0
- Value
- 1.9e0
- Comparator
- all the herbicidal treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain yield (5.41 t/ha) and benefit cost ratio (1.9) were recorded with application of pyrazosulfuron @ 25 g/ha PE fb bispyribac-Na @ 20 g/ha + pyrazosulfuron @ 20 g/ha POE”
e1“Among all the herbicidal treatments”
t0“direct- seeded rice”
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