Abstract
Three field studies were conducted at Lewiston Woodville, NC, in 2001 and 2002 to evaluate crop tolerance, weed control, grain yield, and net returns in glyphosate-resistant corn with various herbicide systems. Crop injury, weed control, and grain yield were not influenced by glyphosate formulation. Atrazine preemergence (PRE) and atrazine plus metolachlor PRE, averaged over postemergence (POST) systems, controlled Texas panicum at least 80 and 87%, respectively. Sequential glyphosate applications (early postemergence [EPOST] followed by [fb] POST) provided at least 99% control of Texas panicum compared with at least 86 and 88% control with glyphosate EPOST and glyphosate plus halosulfuron EPOST, respectively. Atrazine plus metolachlor PRE fb any glyphosate system controlled large crabgrass and goosegrass 89 to 100% and 94 to 100%, respectively. Sequential glyphosate treatments controlled large crabgrass and goosegrass at least 99 and 95%, respectively. Regardless of PRE system, glyphosate plus halosulfuron EPOST and sequential applications of glyphosate controlled common ragweed and common lambsquarters at least 99%, whereas glyphosate EPOST alone provided at least 88 and 96% control, respectively. Glyphosate plus halosulfuron EPOST and glyphosate sequentially controlled yellow nutsedge similarly and more consistently than glyphosate EPOST. Regardless of PRE treatment, sequential glyphosate applications provided at least 98% control of entireleaf and pitted morningglory, whereas glyphosate EPOST controlled at least 64 and 62%, respectively. Glyphosate EPOST and the sequential glyphosate EPOST fb POST systems yielded similarly at all three locations. Net returns were highest at all three locations with the glyphosate sequential system, with similar net returns obtained with glyphosate EPOST and glyphosate plus halosulfuron EPOST at two and one locations, respectively.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 20
Claim · model-written summary
Glyphosate formulation did not influence corn injury, weed control or grain yield.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- glyphosate formulatione0
- Outcome
- Crop injury, weed control, and grain yielde0
- Direction
- not influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop injury, weed control, and grain yield were not influenced by glyphosate formulation.”
t0“corn”
Claim · model-written summary
Atrazine PRE controlled Texas panicum at least 80%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Atrazine preemergence (PRE)e0
- Interactor
- Texas panicume0weed
- Outcome
- controlled Texas panicume0
- Direction
- controllede0
- Value
- 80e0
- Comparator
- postemergence (POST) systemse0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atrazine preemergence (PRE) and atrazine plus metolachlor PRE, averaged over postemergence (POST) systems, controlled Texas panicum at least 80 and 87%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Atrazine plus metolachlor PRE controlled Texas panicum at least 87%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- atrazine plus metolachlor PREe0
- Interactor
- Texas panicume0weed
- Outcome
- controlled Texas panicume0
- Direction
- controllede0
- Value
- 87%e0
- Comparator
- postemergence (POST) systemse0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atrazine preemergence (PRE) and atrazine plus metolachlor PRE, averaged over postemergence (POST) systems, controlled Texas panicum at least 80 and 87%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Sequential glyphosate controlled Texas panicum at least 99%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Sequential glyphosate applicationse0
- Interactor
- Texas panicume0weed
- Outcome
- control of Texas panicume0
- Direction
- controle0
- Value
- 99%e0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sequential glyphosate applications (early postemergence [EPOST] followed by [fb] POST) provided at least 99% control of Texas panicum compared with at least 86 and 88% control with glyphosate EPOST and glyphosate plus halosulfuron EPOST, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST controlled Texas panicum at least 86%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate EPOSTe0
- Outcome
- controle0
- Direction
- controle0
- Value
- 86e0
- Comparator
- glyphosate plus halosulfuron EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at least 86 and 88% control with glyphosate EPOST and glyphosate plus halosulfuron EPOST, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate plus halosulfuron EPOST controlled Texas panicum at least 88%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate plus halosulfuron EPOSTe0
- Outcome
- controle0
- Direction
- controle0
- Value
- 88%e0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at least 86 and 88% control with glyphosate EPOST and glyphosate plus halosulfuron EPOST, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Atrazine plus metolachlor PRE followed by glyphosate controlled large crabgrass 89 to 100%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Atrazine plus metolachlor PRE fb any glyphosate systeme0
- Interactor
- large crabgrasse0weed
- Outcome
- controlled large crabgrasse0
- Direction
- controllede0
- Value
- 89 to 100%e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atrazine plus metolachlor PRE fb any glyphosate system controlled large crabgrass and goosegrass 89 to 100% and 94 to 100%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Atrazine plus metolachlor PRE followed by glyphosate controlled goosegrass 94 to 100%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Atrazine plus metolachlor PRE fb any glyphosate systeme0
- Interactor
- goosegrasse0weed
- Outcome
- goosegrasse0
- Direction
- controllede0
- Value
- 94 to 100%e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atrazine plus metolachlor PRE fb any glyphosate system controlled large crabgrass and goosegrass 89 to 100% and 94 to 100%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Sequential glyphosate controlled large crabgrass at least 99%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Sequential glyphosate treatmentse0
- Interactor
- large crabgrasse0weed
- Outcome
- controlled large crabgrasse0
- Direction
- controllede0
- Value
- 99e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sequential glyphosate treatments controlled large crabgrass and goosegrass at least 99 and 95%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Sequential glyphosate controlled goosegrass at least 95%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Sequential glyphosate treatmentse0
- Interactor
- goosegrasse0weed
- Outcome
- goosegrasse0
- Direction
- controllede0
- Value
- 95%e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sequential glyphosate treatments controlled large crabgrass and goosegrass at least 99 and 95%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate plus halosulfuron EPOST and sequential glyphosate controlled ragweed and lambsquarters at least 99%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate plus halosulfuron EPOST and sequential applications of glyphosatee0
- Interactor
- common ragweed
Ambrosia artemisiifoliae0weed - Outcome
- controlled common ragweed and common lambsquarterse0
- Direction
- controllede0
- Value
- 99%e0
- Comparator
- glyphosate EPOST alonee0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of PRE system, glyphosate plus halosulfuron EPOST and sequential applications of glyphosate controlled common ragweed and common lambsquarters at least 99%, whereas glyphosate EPOST alone provided at least 88 and 96% control, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST alone controlled common ragweed at least 88%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate EPOST alonee0
- Outcome
- controle0
- Direction
- controle0
- Value
- 88e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate EPOST alone provided at least 88 and 96% control, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST alone controlled common lambsquarters at least 96%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate EPOST alonee0
- Outcome
- controle0
- Direction
- controle0
- Value
- 96%e0
- Setting
- Lewiston Woodville, NCt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate EPOST alone provided at least 88 and 96% control, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate plus halosulfuron EPOST and sequential glyphosate controlled yellow nutsedge similarly and more consistently than glyphosate EPOST.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Glyphosate plus halosulfuron EPOST and glyphosate sequentiallye0
- Interactor
- yellow nutsedgee0weed
- Outcome
- controlled yellow nutsedgee0
- Direction
- more consistentlye0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate plus halosulfuron EPOST and glyphosate sequentially controlled yellow nutsedge similarly and more consistently than glyphosate EPOST.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Sequential glyphosate controlled entireleaf and pitted morningglory at least 98%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- sequential glyphosate applicationse0
- Interactor
- entireleafe0weed
- Outcome
- control of entireleaf and pitted morningglorye0
- Direction
- controle0
- Value
- 98%e0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of PRE treatment, sequential glyphosate applications provided at least 98% control of entireleaf and pitted morningglory, whereas glyphosate EPOST controlled at least 64 and 62%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST controlled entireleaf morningglory at least 64%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate EPOSTe0
- Outcome
- controllede0
- Direction
- controllede0
- Value
- 64e0
- Comparator
- sequential glyphosate applicationse0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of PRE treatment, sequential glyphosate applications provided at least 98% control of entireleaf and pitted morningglory, whereas glyphosate EPOST controlled at least 64 and 62%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST controlled pitted morningglory at least 62%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate EPOSTe0
- Outcome
- controllede0
- Direction
- controllede0
- Value
- 62%e0
- Comparator
- sequential glyphosate applicationse0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of PRE treatment, sequential glyphosate applications provided at least 98% control of entireleaf and pitted morningglory, whereas glyphosate EPOST controlled at least 64 and 62%, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST and sequential glyphosate yielded similarly at all three locations.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- sequential glyphosate EPOST fb POST systemse0
- Outcome
- yieldede0
- Direction
- similarlye0
- Comparator
- Glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate EPOST and the sequential glyphosate EPOST fb POST systems yielded similarly at all three locations.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Sequential glyphosate produced the highest net returns at all three locations.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate sequential systeme0
- Outcome
- Net returnse0
- Direction
- higheste0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net returns were highest at all three locations with the glyphosate sequential system, with similar net returns obtained with glyphosate EPOST and glyphosate plus halosulfuron EPOST at two and one locations, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
Claim · model-written summary
Glyphosate EPOST and glyphosate plus halosulfuron EPOST gave similar net returns at two and one locations, respectively.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- glyphosate plus halosulfuron EPOSTe0
- Outcome
- net returnse0
- Direction
- similare0
- Comparator
- glyphosate EPOSTe0
- Setting
- Lewiston Woodville, NCt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“similar net returns obtained with glyphosate EPOST and glyphosate plus halosulfuron EPOST at two and one locations, respectively.”
t0“corn”
t1“Lewiston Woodville, NC”
The same questions in other papers
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- no effect
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68 papers in the same direction as this paper · 15 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
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See all 86 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.