Abstract
Abstract Late-emerging summer annual weeds are difficult to control in dry bean production fields. Dry bean is a poor competitor with weeds, due to its slow rate of growth and delayed canopy formation. Palmer amaranth is particularly difficult to control due to season-long emergence and resistance to acetolactate synthase (ALS)-inhibiting herbicides. Dry bean growers rely on PPI and preemergence residual herbicides for the foundation of their weed control programs; however, postemergence herbicides are often needed for season-long weed control. The objective of this experiment was to evaluate effect of planting date and herbicide program on late-season weed control in dry bean in western Nebraska. Field experiments were conducted in 2017 and 2018 near Scottsbluff, NE. The experiment was arranged in a split-plot design, with planting date and herbicide program as main-plot and subplot factors, respectively. Delayed planting was represented by a delay of 15 d after standard planting time. The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield. The imazamox + bentazon treatment provided poor Palmer amaranth control and did not consistently result in Palmer amaranth density and biomass reduction compared with the nontreated control. In 2018, the delayed planting treatment had reduced Palmer amaranth biomass with the pendimethalin + dimethenamid-P treatment, as compared with standard planting. Delaying planting did not reduce dry bean yield and had limited benefit in improving weed control in dry bean.
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Claims 12
Claim · model-written summary
EPTC + ethalfluralin produced the lowest Palmer amaranth density.
- Taxon
- dry beant0
- Treatment
- EPTC + ethalfluraline0
- Interactor
- Palmer amaranthe0weed
- Outcome
- Palmer amaranth densitye0
- Direction
- loweste0
- Qualifier
- 3 wk after treatmente0
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
EPTC + ethalfluralin produced the highest dry bean yield.
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
EPTC + ethalfluralin followed by (fb) imazamox + bentazon produced the lowest Palmer amaranth density.
- Taxon
- dry beant0
- Treatment
- EPTC + ethalfluralin followed by (fb) imazamox + bentazone0
- Interactor
- Palmer amaranthe0weed
- Outcome
- Palmer amaranth densitye0
- Direction
- loweste0
- Qualifier
- 3 wk after treatmente0
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
EPTC + ethalfluralin followed by (fb) imazamox + bentazon produced the highest dry bean yield.
- Taxon
- dry beant0
- Treatment
- EPTC + ethalfluralin followed by (fb) imazamox + bentazone0
- Outcome
- dry bean yielde0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
pendimethalin + dimethenamid-P fb imazamox + bentazon produced the lowest Palmer amaranth density.
- Taxon
- dry beant0
- Treatment
- pendimethalin + dimethenamid-P fb imazamox + bentazone0
- Interactor
- Palmer amaranthe0weed
- Outcome
- Palmer amaranth densitye0
- Direction
- loweste0
- Qualifier
- 3 wk after treatmente0
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
pendimethalin + dimethenamid-P fb imazamox + bentazon produced the highest dry bean yield.
- Taxon
- dry beant0
- Treatment
- pendimethalin + dimethenamid-P fb imazamox + bentazone0
- Outcome
- dry bean yielde0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“The treatments EPTC + ethalfluralin, EPTC + ethalfluralin followed by (fb) imazamox + bentazon, and pendimethalin + dimethenamid-P fb imazamox + bentazon, resulted in the lowest Palmer amaranth density at 3 wk after treatment and the highest dry bean yield.”
t0“dry bean”
Claim · model-written summary
Imazamox plus bentazon gave poor Palmer amaranth control.
- Taxon
- dry beant0
- Treatment
- imazamox + bentazone0
- Interactor
- Palmer amaranthe0weed
- Outcome
- Palmer amaranth controle0
- Direction
- poore0
Not reportedComparator
Verbatim
e0“The imazamox + bentazon treatment provided poor Palmer amaranth control”
t0“dry bean”
Claim · model-written summary
Imazamox plus bentazon did not consistently reduce Palmer amaranth density versus untreated control.
Verbatim
e0“The imazamox + bentazon treatment provided poor Palmer amaranth control and did not consistently result in Palmer amaranth density and biomass reduction compared with the nontreated control.”
t0“dry bean”
Claim · model-written summary
Imazamox plus bentazon did not consistently reduce biomass versus untreated control.
Verbatim
e0“The imazamox + bentazon treatment provided poor Palmer amaranth control and did not consistently result in Palmer amaranth density and biomass reduction compared with the nontreated control.”
t0“dry bean”
Claim · model-written summary
Delayed planting plus pendimethalin and dimethenamid-P reduced Palmer amaranth biomass in 2018.
Verbatim
e0“In 2018, the delayed planting treatment had reduced Palmer amaranth biomass with the pendimethalin + dimethenamid-P treatment, as compared with standard planting.”
t0“dry bean”
Claim · model-written summary
Delayed planting did not reduce dry bean yield.
Not reportedComparator
Verbatim
e0“Delaying planting did not reduce dry bean yield”
t0“dry bean”
Claim · model-written summary
Delayed planting had limited benefit for weed control.
Not reportedComparator
Verbatim
e0“Delaying planting did not reduce dry bean yield and had limited benefit in improving weed control in dry bean.”
t0“dry bean”
The same questions in other papers
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- negative
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- negative
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See all 7 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.