Abstract
A new, prepackaged mixture of saflufenacil + dimethenamid-P has been introduced for PRE control of grass and broadleaf weeds in corn. Field experiments with this new herbicide combination were conducted in 2008 and 2009 at four locations in southern Ontario, Canada. The objective of this study was to determine the dose of saflufenacil + dimethenamid-P required for overall weed control and species-specific weed control, as well as the dose required for early season weed control when followed with glyphosate at the six- to eight-leaf corn stage. Based on weed dry weight, the GR 95 across locations ranged from 126 to 675 g ha −1 . The 95% growth reduction (GR 95 ) for common ragweed, common lambsquarters, pigweed, and wild mustard were 933, 325, 186, and 115 g ha −1 , respectively. Highest corn yields were achieved with saflufenacil + dimethenamid-P applied alone at doses ranging from 368 to 1470 g ha −1 . When followed by glyphosate, the dose range of saflufenacil + dimethenamid-P required to achieve the greatest corn yields was 46 to 1,470 g ha −1 . A minimum dose of 184 g ha −1 of saflufenacil + dimethenamid-P followed by glyphosate was required for the yield to exceed that of the single treatment of glyphosate applied alone.
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Claims 8
Claim · model-written summary
The 95% weed growth reduction (GR 95) based on weed dry weight ranged from 126 to 675 g ha−1 across locations.
- Taxon
- Corn
Zea mays subsp. mayst0 - Interactor
- grass and broadleaf weedse0weed
- Outcome
- GR 95e1
- Value
- 126 to 675 g ha −1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e0“PRE control of grass and broadleaf weeds in corn”
e1“Based on weed dry weight, the GR 95 across locations ranged from 126 to 675 g ha −1”
Claim · model-written summary
The GR 95 for common ragweed was 933 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Interactor
- common ragweed
Ambrosia artemisiifoliae2weed - Outcome
- GR 95e2
- Value
- 933e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e2“The 95% growth reduction (GR 95 ) for common ragweed, common lambsquarters, pigweed, and wild mustard were 933, 325, 186, and 115 g ha −1 , respectively”
Claim · model-written summary
The GR 95 for common lambsquarters was 325 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Interactor
- common lambsquarters
Chenopodium albume2weed - Outcome
- GR 95e2
- Value
- 325e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e2“The 95% growth reduction (GR 95 ) for common ragweed, common lambsquarters, pigweed, and wild mustard were 933, 325, 186, and 115 g ha −1 , respectively”
Claim · model-written summary
The GR 95 for pigweed was 186 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Interactor
- pigweede2weed
- Outcome
- GR 95e2
- Value
- 186e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e2“The 95% growth reduction (GR 95 ) for common ragweed, common lambsquarters, pigweed, and wild mustard were 933, 325, 186, and 115 g ha −1 , respectively”
Claim · model-written summary
The GR 95 for wild mustard was 115 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Interactor
- wild mustarde2weed
- Outcome
- GR 95e2
- Value
- 115e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e2“The 95% growth reduction (GR 95 ) for common ragweed, common lambsquarters, pigweed, and wild mustard were 933, 325, 186, and 115 g ha −1 , respectively”
Claim · model-written summary
The highest corn yields were achieved with saflufenacil + dimethenamid-P applied alone at 368 to 1470 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- saflufenacil + dimethenamid-P applied alone at doses ranging from 368 to 1470 g ha −1e3
- Outcome
- Highest corn yieldse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e3“Highest corn yields were achieved with saflufenacil + dimethenamid-P applied alone at doses ranging from 368 to 1470 g ha −1”
Claim · model-written summary
When followed by glyphosate, the dose range of saflufenacil + dimethenamid-P needed for the greatest corn yields was 46 to 1,470 g ha−1.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- saflufenacil + dimethenamid-Pe4
- Outcome
- greatest corn yieldse4
- Value
- 46 to 1,470 g ha −1e4
- Qualifier
- followed by glyphosatee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e4“When followed by glyphosate, the dose range of saflufenacil + dimethenamid-P required to achieve the greatest corn yields was 46 to 1,470 g ha −1”
Claim · model-written summary
A minimum dose of 184 g ha−1 of saflufenacil + dimethenamid-P followed by glyphosate was needed for corn yield to exceed that of glyphosate alone.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- saflufenacil + dimethenamid-P followed by glyphosatee5
- Outcome
- yielde5
- Direction
- exceede5
- Value
- 184 g ha −1e5
- Comparator
- single treatment of glyphosate applied alonee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Control in Corn”
e5“A minimum dose of 184 g ha −1 of saflufenacil + dimethenamid-P followed by glyphosate was required for the yield to exceed that of the single treatment of glyphosate applied alone”
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- negative
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4 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
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See all 9 papers →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.