Abstract
Field experiments were conducted during Kharif season of 2007 and 2008 at Punjab Agricultural University, Ludhiana to evolve suitable combination of pre and post-emergence herbicides for effective weed management in direct-seeded rice under unpuddled conditions. Results indicated that during 2007, integration of post-emergence application (30 Days after sowing) of bispyribac (25 and 30 g/ha) or azimsulfuron (20 g/ha) with pre-emergence application of pendimethalin 0.75 kg/ha, pretilachlor 0.5 kg/ha and thiobencarb 1.25 kg/ha provided effective control of weeds and produced significantly higher grain yields than unweeded (control) treatment. During 2008 also, integration of pre-emergence application of pendimethalin 0.75 kg/ ha or oxadiargyl 0.90 g/ha with post-emergence application of bispyribac 25 kg/ha, azimsulfuron 20 g/ha and 2,4-D 0.5 kg/ha resulted in significant reduction in dry matter of weeds and increased grain yield as compared to alone application of pendimethalin 0.75 kg/ha. Pre-emergence application of flufenacet 80 g/ ha and early post-emergence application of penoxsulam 30 and 35/g ha were found ineffective for controlling weeds.
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Claims 6
Claim · model-written summary
The 2007 pre-emergence and post-emergence herbicide integration effectively controlled weeds.
- Taxon
- direct-seeded ricet0
- Treatment
- integration of post-emergence application (30 Days after sowing) of bispyribac (25 and 30 g/ha) or azimsulfuron (20 g/ha) with pre-emergence application of pendimethalin 0.75 kg/ha, pretilachlor 0.5 kg/ha and thiobencarb 1.25 kg/hae0
- Interactor
- weedse0weed
- Outcome
- control of weedse0
- Direction
- effectivee0
Not reportedComparator
Verbatim
e0“integration of post-emergence application (30 Days after sowing) of bispyribac (25 and 30 g/ha) or azimsulfuron (20 g/ha) with pre-emergence application of pendimethalin 0.75 kg/ha, pretilachlor 0.5 kg/ha and thiobencarb 1.25 kg/ha provided effective control of weeds”
t0“direct-seeded rice”
Claim · model-written summary
The 2007 integrated herbicide program produced significantly higher rice grain yield than unweeded control.
- Taxon
- direct-seeded ricet0
- Treatment
- integration of post-emergence application (30 Days after sowing) of bispyribac (25 and 30 g/ha) or azimsulfuron (20 g/ha) with pre-emergence application of pendimethalin 0.75 kg/ha, pretilachlor 0.5 kg/ha and thiobencarb 1.25 kg/hae0
- Outcome
- grain yieldse0
- Direction
- highere0
- Comparator
- unweeded (control) treatmente0
Verbatim
e0“integration of post-emergence application (30 Days after sowing) of bispyribac (25 and 30 g/ha) or azimsulfuron (20 g/ha) with pre-emergence application of pendimethalin 0.75 kg/ha, pretilachlor 0.5 kg/ha and thiobencarb 1.25 kg/ha provided effective control of weeds and produced significantly higher grain yields than unweeded (control) treatment”
t0“direct-seeded rice”
Claim · model-written summary
The 2008 integrated herbicide program significantly reduced weed dry matter relative to pendimethalin alone.
- Taxon
- direct-seeded ricet0
- Treatment
- integration of pre-emergence application of pendimethalin 0.75 kg/ ha or oxadiargyl 0.90 g/ha with post-emergence application of bispyribac 25 kg/ha, azimsulfuron 20 g/ha and 2,4-D 0.5 kg/hae0
- Interactor
- weedse0weed
- Outcome
- dry matter of weedse0
- Direction
- reductione0
- Comparator
- alone application of pendimethalin 0.75 kg/hae0
Verbatim
e0“integration of pre-emergence application of pendimethalin 0.75 kg/ ha or oxadiargyl 0.90 g/ha with post-emergence application of bispyribac 25 kg/ha, azimsulfuron 20 g/ha and 2,4-D 0.5 kg/ha resulted in significant reduction in dry matter of weeds and increased grain yield as compared to alone application of pendimethalin 0.75 kg/ha”
t0“direct-seeded rice”
Claim · model-written summary
The 2008 integrated herbicide program increased grain yield relative to pendimethalin alone.
- Taxon
- direct-seeded ricet0
- Treatment
- integration of pre-emergence application of pendimethalin 0.75 kg/ ha or oxadiargyl 0.90 g/ha with post-emergence application of bispyribac 25 kg/ha, azimsulfuron 20 g/ha and 2,4-D 0.5 kg/hae0
- Outcome
- grain yielde0
- Direction
- increasede0
- Comparator
- alone application of pendimethalin 0.75 kg/hae0
Verbatim
e0“integration of pre-emergence application of pendimethalin 0.75 kg/ ha or oxadiargyl 0.90 g/ha with post-emergence application of bispyribac 25 kg/ha, azimsulfuron 20 g/ha and 2,4-D 0.5 kg/ha resulted in significant reduction in dry matter of weeds and increased grain yield as compared to alone application of pendimethalin 0.75 kg/ha”
t0“direct-seeded rice”
Claim · model-written summary
Flufenacet 80 g/ ha was ineffective for weed control.
- Taxon
- direct-seeded ricet0
- Treatment
- Pre-emergence application of flufenacet 80 g/ hae0
- Interactor
- weedse0weed
- Outcome
- controlling weedse0
- Direction
- ineffectivee0
Not reportedComparator
Verbatim
e0“Pre-emergence application of flufenacet 80 g/ ha and early post-emergence application of penoxsulam 30 and 35/g ha were found ineffective for controlling weeds”
t0“direct-seeded rice”
Claim · model-written summary
Penoxsulam 30 and 35/g ha was ineffective for weed control.
- Taxon
- direct-seeded ricet0
- Treatment
- early post-emergence application of penoxsulam 30 and 35/g hae0
- Interactor
- weedse0weed
- Outcome
- controlling weedse0
- Direction
- ineffectivee0
Not reportedComparator
Verbatim
e0“early post-emergence application of penoxsulam 30 and 35/g ha were found ineffective for controlling weeds”
t0“direct-seeded rice”
The same questions in other papers
Thiobencarb · yield · Oryza sativa (rice)Results differ
18 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
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See all 24 papers →2,4-D · weed · Oryza sativa (rice)Results differ
46 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
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See all 49 papers →Pretilachlor · yield · Oryza sativa (rice)Results differ
132 papers in the same direction as this paper · 3 in the opposite direction · 5 reporting no difference from an alternative
- positive
- positive
- positive
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See all 141 papers →Pretilachlor · weed · Oryza sativa (rice)Results differ
146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
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See all 150 papers →flufenacet · weed · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
Thiobencarb · weed · Oryza sativa (rice)Positive and negative results
21 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
19 papers more in this group
See all 23 papers →bispyribac · yield · Oryza sativa (rice)Positive and negative results
30 papers in the same direction as this paper · 3 reporting no difference from an alternative
- positive
- no effect
- no effect
30 papers more in this group
See all 34 papers →azimsulfuron · yield · Oryza sativa (rice)Positive and negative results
34 papers in the same direction as this paper · 2 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
36 papers more in this group
See all 40 papers →8 of 16 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.