Abstract
Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass. The goal of this research was to develop effective herbicide programs for glyphosate-resistant johnsongrass in glufosinate-resistant soybean. Control of the resistant johnsongrass was greater with glufosinate at 590 and 740 g ai ha −1 than at 450 g ha −1 . Sequential glufosinate applications were more effective than a single application, irrespective of rate. A PRE application of flumioxazin at 71 g ai ha −1 immediately after planting provided no more than 26% johnsongrass control 6 wk after soybean emergence (WAE). The addition of clethodim at 136 g ai ha −1 to sequential applications of glufosinate at 450 g ha −1 improved control over sequentially applied glufosinate alone. Herbicide programs containing imazethapyr or imazamox in combination with glufosinate followed by clethodim plus glufosinate controlled johnsongrass at least 94% at 10 WAE and provided three distinct mechanisms of action, a highly effective resistance management strategy. Results from this research indicate that a high level of glyphosate-resistant johnsongrass control can be achieved through the use of several herbicide options in glufosinate-resistant soybean.
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Claims 6
Claim · model-written summary
Glufosinate at 590 and 740 g ai ha −1 gave greater control of the resistant johnsongrass than 450 g ha −1.
- Taxon
- soybean
Glycine maxe0 - Material
- glyphosate-resistant johnsongrasse0
- Treatment
- glufosinate at 590 and 740 g ai ha −1e1
- Interactor
- johnsongrass
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Sorghum halepensee0weed - Outcome
- Control of the resistant johnsongrasse1
- Direction
- greatere1
- Comparator
- 450 g ha −1e1
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e1“Control of the resistant johnsongrass was greater with glufosinate at 590 and 740 g ai ha −1 than at 450 g ha −1”
Claim · model-written summary
Sequential glufosinate applications were more effective than a single application, irrespective of rate.
- Taxon
- soybeanGlycine maxe0
- Material
- glyphosate-resistant johnsongrasse0
- Treatment
- Sequential glufosinate applicationse2
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- more effectivee2
- Direction
- more effectivee2
- Qualifier
- irrespective of ratee2
- Comparator
- a single applicatione2
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e2“Sequential glufosinate applications were more effective than a single application, irrespective of rate”
Claim · model-written summary
A PRE application of flumioxazin at 71 g ai ha −1 provided no more than 26% johnsongrass control at 6 wk after soybean emergence.
- Taxon
- soybeanGlycine maxe0
- Material
- glyphosate-resistant johnsongrasse0
- Treatment
- A PRE application of flumioxazin at 71 g ai ha −1e3
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- johnsongrass controle3
- Value
- no more than 26%e3
- Qualifier
- 6 wk after soybean emergence (WAE)e3
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e3“A PRE application of flumioxazin at 71 g ai ha −1 immediately after planting provided no more than 26% johnsongrass control 6 wk after soybean emergence (WAE)”
Claim · model-written summary
Adding clethodim at 136 g ai ha −1 to sequential glufosinate at 450 g ha −1 improved control over sequential glufosinate alone.
- Taxon
- soybeanGlycine maxe0
- Material
- glyphosate-resistant johnsongrasse0
- Treatment
- The addition of clethodim at 136 g ai ha −1 to sequential applications of glufosinate at 450 g ha −1e4
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- controle4
- Direction
- improvede4
- Comparator
- sequentially applied glufosinate alonee4
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e4“The addition of clethodim at 136 g ai ha −1 to sequential applications of glufosinate at 450 g ha −1 improved control over sequentially applied glufosinate alone”
Claim · model-written summary
Herbicide programs with imazethapyr or imazamox plus glufosinate followed by clethodim plus glufosinate controlled johnsongrass by at least 94% at 10 WAE.
- Taxon
- soybeanGlycine maxe0
- Material
- glyphosate-resistant johnsongrasse0
- Treatment
- Herbicide programs containing imazethapyr or imazamox in combination with glufosinate followed by clethodim plus glufosinatee5
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- controlled johnsongrasse5
- Value
- at least 94%e5
- Qualifier
- at 10 WAEe5
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e5“Herbicide programs containing imazethapyr or imazamox in combination with glufosinate followed by clethodim plus glufosinate controlled johnsongrass at least 94% at 10 WAE and provided three distinct mechanisms of action, a highly effective resistance management strategy”
Claim · model-written summary
The imazethapyr or imazamox herbicide programs provided three distinct mechanisms of action, a highly effective resistance management strategy.
- Taxon
- soybeanGlycine maxe0
- Material
- glyphosate-resistant johnsongrasse0
- Treatment
- Herbicide programs containing imazethapyr or imazamox in combination with glufosinate followed by clethodim plus glufosinatee5
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- three distinct mechanisms of actione5
- Qualifier
- a highly effective resistance management strategye5
- Setting
- West Memphis, ARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three field experiments were conducted in 2010 and 2012 in a soybean production field near West Memphis, AR, containing glyphosate-resistant johnsongrass”
e5“Herbicide programs containing imazethapyr or imazamox in combination with glufosinate followed by clethodim plus glufosinate controlled johnsongrass at least 94% at 10 WAE and provided three distinct mechanisms of action, a highly effective resistance management strategy”
The same questions in other papers
clethodim · Sorghum halepense · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
glufosinate · Sorghum halepense · Glycine max (soybean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.