Abstract
Field experiments were conducted in 1988 and 1989 to (i) evaluate annual weed control with nicosulfuron applied at rates of 17 to 70 g ai/ha with several additives and (ii) evaluate annual weed control with nicosulfuron applied at rates of 17 to 105 g/ha at three corn growth stages. In 1988, in the adjuvant study, giant foxtail control increased linearly with no additive or with urea ammonium nitrate as the rate of nicosulfuron increased. Petroleum oil concentrate, nonionic surfactant, and a combination of either petroleum oil concentrate or nonionic surfactant with urea ammonium nitrate applied with nicosulfuron increased giant foxtail control to 90% or greater regardless of rate both years. Nicosulfuron at all rates with no additive and in combination with all additives controlled 93% or more of redroot pigweed and Pennsylvania smartweed both years. Corn grain yield was related to the level of giant foxtail control. In the rate by corn growth stage study, giant foxtail, redroot pigweed, and Pennsylvania smartweed control was 90% or greater regardless of nicosulfuron rate or application stage both years. Corn grain yield was related more to the duration of weed competition than the level of weed control with grain yield 8 to 12% lower with nicosulfuron applied at the V7 growth stage compared with the V3 or V5 growth stage.
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Claims 10
Claim · model-written summary
Giant foxtail control increased linearly as the nicosulfuron rate increased with no additive or with urea ammonium nitrate (1988 adjuvant study).
- Taxon
- giant foxtaile0
- Treatment
- rate of nicosulfurone0
- Interactor
- giant foxtaile0weed
- Outcome
- giant foxtail controle0
- Direction
- increased linearlye0
Not reportedComparator
Verbatim
e0“giant foxtail control increased linearly with no additive or with urea ammonium nitrate as the rate of nicosulfuron increased”
Claim · model-written summary
Petroleum oil concentrate, nonionic surfactant, and combinations of either with urea ammonium nitrate, applied with nicosulfuron, increased giant foxtail control to 90% or greater regardless of rate in both years.
- Taxon
- giant foxtaile0
- Treatment
- Petroleum oil concentrate, nonionic surfactant, and a combination of either petroleum oil concentrate or nonionic surfactant with urea ammonium nitrate applied with nicosulfurone0
- Interactor
- giant foxtaile0weed
- Outcome
- giant foxtail controle0
- Direction
- increasede0
- Value
- 90% or greatere0
- Qualifier
- regardless of rate both yearse0
Not reportedComparator
Verbatim
e0“Petroleum oil concentrate, nonionic surfactant, and a combination of either petroleum oil concentrate or nonionic surfactant with urea ammonium nitrate applied with nicosulfuron increased giant foxtail control to 90% or greater regardless of rate both years”
Claim · model-written summary
Nicosulfuron at all rates, with no additive and with all additives, controlled 93% or more of redroot pigweed in both years.
- Taxon
- redroot pigweede0
- Treatment
- Nicosulfuron at all rates with no additive and in combination with all additivese0
- Interactor
- redroot pigweede0weed
- Outcome
- controlled 93% or more of redroot pigweede0
- Direction
- increaseinferrede0
- Value
- 93% or moree0
Not reportedComparator
Verbatim
e0“Nicosulfuron at all rates with no additive and in combination with all additives controlled 93% or more of redroot pigweed and Pennsylvania smartweed both years”
Claim · model-written summary
Nicosulfuron at all rates, with no additive and with all additives, controlled 93% or more of Pennsylvania smartweed in both years.
- Taxon
- Pennsylvania smartweede0
- Treatment
- Nicosulfuron at all rates with no additive and in combination with all additivese0
- Interactor
- Pennsylvania smartweede0weed
- Outcome
- controlled 93% or more of redroot pigweed and Pennsylvania smartweede0
- Direction
- increaseinferrede0
- Value
- 93% or moree0
Not reportedComparator
Verbatim
e0“Nicosulfuron at all rates with no additive and in combination with all additives controlled 93% or more of redroot pigweed and Pennsylvania smartweed both years”
Claim · model-written summary
Corn grain yield was related to the level of giant foxtail control.
- Taxon
- Corn
Zea mays subsp. mayst0 - Interactor
- giant foxtaile0weed
- Outcome
- Corn grain yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn grain yield was related to the level of giant foxtail control”
t0“Corn (Zea mays)”
Claim · model-written summary
In the rate by corn growth stage study, giant foxtail control was 90% or greater regardless of nicosulfuron rate or application stage in both years.
- Taxon
- giant foxtaile0
- Treatment
- nicosulfuron rate or application stagee0
- Interactor
- giant foxtaile0weed
- Outcome
- controle0
- Direction
- increaseinferrede0
- Value
- 90% or greatere0
Not reportedComparator
Verbatim
e0“giant foxtail, redroot pigweed, and Pennsylvania smartweed control was 90% or greater regardless of nicosulfuron rate or application stage both years”
Claim · model-written summary
In the rate by corn growth stage study, redroot pigweed control was 90% or greater regardless of nicosulfuron rate or application stage in both years.
- Taxon
- redroot pigweede0
- Treatment
- nicosulfuron rate or application stagee0
- Interactor
- redroot pigweede0weed
- Outcome
- controle0
- Direction
- increaseinferrede0
- Value
- 90% or greatere0
Not reportedComparator
Verbatim
e0“giant foxtail, redroot pigweed, and Pennsylvania smartweed control was 90% or greater regardless of nicosulfuron rate or application stage both years”
Claim · model-written summary
In the rate by corn growth stage study, Pennsylvania smartweed control was 90% or greater regardless of nicosulfuron rate or application stage in both years.
- Taxon
- Pennsylvania smartweede0
- Treatment
- nicosulfuron rate or application stagee0
- Interactor
- Pennsylvania smartweede0weed
- Outcome
- controle0
- Direction
- increaseinferrede0
- Value
- 90% or greatere0
Not reportedComparator
Verbatim
e0“giant foxtail, redroot pigweed, and Pennsylvania smartweed control was 90% or greater regardless of nicosulfuron rate or application stage both years”
Claim · model-written summary
Corn grain yield was 8 to 12% lower with nicosulfuron applied at the V7 growth stage than at the V3 or V5 growth stage.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- nicosulfuron applied at the V7 growth stagee0
- Outcome
- grain yielde0
- Direction
- lowere0
- Value
- 8 to 12%e0
- Comparator
- V3 or V5 growth stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield 8 to 12% lower with nicosulfuron applied at the V7 growth stage compared with the V3 or V5 growth stage”
t0“Corn (Zea mays)”
Claim · model-written summary
Corn grain yield was related more to the duration of weed competition than to the level of weed control.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- duration of weed competitione0
- Outcome
- Corn grain yielde0
- Comparator
- level of weed controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn grain yield was related more to the duration of weed competition than the level of weed control”
t0“Corn (Zea mays)”
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See all 98 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.