Abstract
Field studies were conducted at Shiraz, Iran, during 2000 and 2001 to investigate the effect of separate and combined herbicide treatments on weed control and corn yield. Separate and combined herbicide treatments included 14 combinations applied at two rates. Herbicides reduced weed biomass compared with the weedy check. In both years, maximum reduction in weed biomass was observed with atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg ai/ha and minimum reduction in weed biomass was observed with rimsulfuron at 0.02 and 0.04 kg/ha. In 2000 and 2001, 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/ha, and alachlor plus 2,4-D plus MCPA at 1.92 + 0.54 + 0.46 kg/ha, and 2.44 + 0.36 + 0.31 kg/ha, controlled 80 to 100% of field bindweed and rimsulfuron at 0.02 and 0.04 kg/ha controlled 17 to 70% of field bindweed. All herbicide treatments controlled redroot pigweed 60 to 100%. In 2000, at 6 and 17 WAP, minimum biomass reduction of Chinese-lantern-plant was observed with 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/ha, and primisulfuron plus prosulfuron at 0.02 + 0.02 and 0.03 + 0.03 kg/ha. Rimsulfuron plus primisulfuron plus prosulfuron at 0.02 + 0.03 + 0.03 and 0.04 + 0.02 + 0.02 kg/ha reduced johnsongrass biomass 96 to 100% and the efficacy of rimsulfuron increased when tank mixed with primisulfuron plus prosulfuron. Results of both years showed that all herbicide treatments increased corn grain yield as compared with the weedy check. Maximum corn grain yield was obtained with combinations of atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg/ha.
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Claims 13
Claim · model-written summary
Herbicides reduced weed biomass relative to the weedy check.
- Treatment
- Herbicidese0
- Interactor
- weede0weed
- Outcome
- weed biomasse0
- Direction
- reducede0
- Comparator
- weedy checke0
- Setting
- Shiraz, Irane7
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“Herbicides reduced weed biomass compared with the weedy check”
Claim · model-written summary
Atrazine plus alachlor gave maximum weed biomass reduction.
- Treatment
- atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg ai/hae0
- Interactor
- weede0weed
- Outcome
- weed biomasse0
- Direction
- maximume0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“maximum reduction in weed biomass was observed with atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg ai/ha”
Claim · model-written summary
Rimsulfuron gave minimum weed biomass reduction.
- Treatment
- rimsulfuron at 0.02 and 0.04 kg/hae0
- Interactor
- weede0weed
- Outcome
- weed biomasse0
- Direction
- minimume0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“minimum reduction in weed biomass was observed with rimsulfuron at 0.02 and 0.04 kg/ha”
Claim · model-written summary
2,4-D plus MCPA controlled field bindweed by 80 to 100%.
- Treatment
- 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/hae0
- Interactor
- field bindweede0weed
- Outcome
- field bindweede0
- Direction
- controllede0
- Value
- 80 to 100%e0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/ha, and alachlor plus 2,4-D plus MCPA at 1.92 + 0.54 + 0.46 kg/ha, and 2.44 + 0.36 + 0.31 kg/ha, controlled 80 to 100% of field bindweed”
Claim · model-written summary
Alachlor plus 2,4-D plus MCPA controlled field bindweed by 80 to 100%.
- Treatment
- alachlor plus 2,4-D plus MCPA at 1.92 + 0.54 + 0.46 kg/ha, and 2.44 + 0.36 + 0.31 kg/hae0
- Interactor
- field bindweede0weed
- Outcome
- field bindweede0
- Direction
- controllede0
- Value
- 80 to 100%e0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“alachlor plus 2,4-D plus MCPA at 1.92 + 0.54 + 0.46 kg/ha, and 2.44 + 0.36 + 0.31 kg/ha, controlled 80 to 100% of field bindweed”
Claim · model-written summary
Rimsulfuron controlled field bindweed by 17 to 70%.
- Treatment
- rimsulfuron at 0.02 and 0.04 kg/hae0
- Interactor
- field bindweede0weed
- Outcome
- field bindweede0
- Direction
- controllede0
- Value
- 17 to 70%e0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“rimsulfuron at 0.02 and 0.04 kg/ha controlled 17 to 70% of field bindweed”
Claim · model-written summary
All herbicide treatments controlled redroot pigweed by 60 to 100%.
- Treatment
- All herbicide treatmentse0
- Interactor
- redroot pigweede0weed
- Outcome
- redroot pigweede0
- Direction
- controllede0
- Value
- 60 to 100%e0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“All herbicide treatments controlled redroot pigweed 60 to 100%”
Claim · model-written summary
2,4-D plus MCPA produced minimum Chinese-lantern-plant biomass reduction.
- Treatment
- 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/hae0
- Interactor
- Chinese-lantern-plante0weed
- Outcome
- Chinese-lantern-plante0
- Direction
- minimume0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“minimum biomass reduction of Chinese-lantern-plant was observed with 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/ha”
Claim · model-written summary
Primisulfuron plus prosulfuron produced minimum Chinese-lantern-plant biomass reduction.
- Treatment
- primisulfuron plus prosulfuron at 0.02 + 0.02 and 0.03 + 0.03 kg/hae0
- Interactor
- Chinese-lantern-plante0weed
- Outcome
- Chinese-lantern-plante0
- Direction
- minimume0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“minimum biomass reduction of Chinese-lantern-plant was observed with 2,4-D plus MCPA at 0.36 + 0.31 and 0.54 + 0.46 kg/ha, and primisulfuron plus prosulfuron at 0.02 + 0.02 and 0.03 + 0.03 kg/ha”
Claim · model-written summary
Rimsulfuron plus primisulfuron plus prosulfuron reduced johnsongrass biomass by 96 to 100%.
- Treatment
- Rimsulfuron plus primisulfuron plus prosulfuron at 0.02 + 0.03 + 0.03 and 0.04 + 0.02 + 0.02 kg/hae0
- Interactor
- johnsongrass
.jpg?width=60)
Sorghum halepensee0weed - Outcome
- johnsongrass biomasse0
- Direction
- reducede0
- Value
- 96 to 100%e0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“Rimsulfuron plus primisulfuron plus prosulfuron at 0.02 + 0.03 + 0.03 and 0.04 + 0.02 + 0.02 kg/ha reduced johnsongrass biomass 96 to 100%”
Claim · model-written summary
Tank mixing increased rimsulfuron efficacy.
- Treatment
- tank mixed with primisulfuron plus prosulfurone0
- Outcome
- efficacy of rimsulfurone0
- Direction
- increasede0
- Comparator
- rimsulfurone0
- Setting
- Shiraz, Irane7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“the efficacy of rimsulfuron increased when tank mixed with primisulfuron plus prosulfuron”
Claim · model-written summary
All herbicide treatments increased corn grain yield against the weedy check.
- Treatment
- all herbicide treatmentse0
- Outcome
- corn grain yielde0
- Direction
- increasede0
- Comparator
- weedy checke0
- Setting
- Shiraz, Irane7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“all herbicide treatments increased corn grain yield as compared with the weedy check”
Claim · model-written summary
Atrazine plus alachlor combinations produced maximum corn grain yield.
- Treatment
- combinations of atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg/hae0
- Outcome
- corn grain yielde0
- Direction
- Maximume0
- Setting
- Shiraz, Irane7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn (Zea mays)”
e7“Field studies were conducted at Shiraz, Iran, during 2000 and 2001”
e0“Maximum corn grain yield was obtained with combinations of atrazine plus alachlor at 1 + 2.44 and 1.5 + 1.92 kg/ha”
The same questions in other papers
atrazine · weed · Zea mays (maize)Results differ
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- positive
- negative
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See all 202 papers →atrazine · yield · Zea mays (maize)Results differ
204 papers in the same direction as this paper · 29 in the opposite direction · 6 reporting no difference from an alternative
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See all 240 papers →Prosulfuron · control · Zea mays (maize)Positive and negative results
1 in the opposite direction
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Primisulfuron · control · Zea mays (maize)Positive and negative results
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See all 13 papers →alachlor · yield · Zea mays (maize)Positive and negative results
19 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative
- negative
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See all 27 papers →rimsulfuron · Sorghum halepense · Zea mays (maize)Results agree
2 papers in the same direction as this paper
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rimsulfuron · weed · Zea mays (maize)Results agree
4 papers in the same direction as this paper
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See all 5 papers →Primisulfuron · Sorghum halepense · Zea mays (maize)Results agree
4 papers in the same direction as this paper
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See all 5 papers →8 of 11 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.