Abstract
Field and greenhouse studies were conducted in 1995 and 1996 in Kansas to determine the efficacy of 21 herbicide treatments for control of tumble pigweed, Palmer amaranth, redroot pigweed, and two biotypes of common waterhemp in soybean. In field studies, nine of eleven preemergence treatments controlled all four species 90% or more. However, pendimethalin and trifluralin controlled Palmer amaranth, redroot pigweed, and tumble pigweed less than the other preplant incorporated and preemergence treatments. With the exception of flumiclorac and NAF-75, postemergence treatments controlled 75 to 90% of all four species. A biotype of common waterhemp collected in Iowa was not controlled by acetolactate synthase-inhibiting herbicides. Greenhouse results were similar to field experiments. Results suggest at least 90% control of these Amaranthus species is possible with proper herbicide selection.
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Claims 7
Claim · model-written summary
Nine of eleven preemergence treatments controlled all four species by at least 90% in field studies.
- Taxon
- soybean
Glycine maxe1 - Treatment
- preemergence treatmentse0
- Interactor
- all four speciese0weed
- Outcome
- controlled all four speciese0
- Direction
- controllede0
- Value
- 90% or moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In field studies, nine of eleven preemergence treatments controlled all four species 90% or more.”
e1“tumble pigweed, Palmer amaranth, redroot pigweed, and two biotypes of common waterhemp in soybean.”
Claim · model-written summary
Pendimethalin controlled three named pigweeds less than other incorporated and preemergence treatments.
- Taxon
- soybean
Glycine maxe1 - Treatment
- pendimethaline0
- Interactor
- Palmer amaranth, redroot pigweed, and tumble pigweede0weed
- Outcome
- controlled Palmer amaranth, redroot pigweed, and tumble pigweede0
- Direction
- lesse0
- Comparator
- other preplant incorporated and preemergence treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“pendimethalin and trifluralin controlled Palmer amaranth, redroot pigweed, and tumble pigweed less than the other preplant incorporated and preemergence treatments.”
e1“in soybean.”
Claim · model-written summary
Trifluralin controlled three named pigweeds less than other incorporated and preemergence treatments.
- Taxon
- soybean
Glycine maxe1 - Treatment
- trifluraline0
- Interactor
- Palmer amaranth, redroot pigweed, and tumble pigweede0weed
- Outcome
- controlled Palmer amaranth, redroot pigweed, and tumble pigweede0
- Direction
- lesse0
- Comparator
- other preplant incorporated and preemergence treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“pendimethalin and trifluralin controlled Palmer amaranth, redroot pigweed, and tumble pigweed less than the other preplant incorporated and preemergence treatments.”
e1“in soybean.”
Claim · model-written summary
Postemergence treatments other than two exceptions controlled 75–90% of all four species.
- Taxon
- soybean
Glycine maxe1 - Treatment
- postemergence treatmentse0
- Interactor
- all four speciese0weed
- Outcome
- controlled 75 to 90% of all four speciese0
- Direction
- controllede0
- Value
- 75 to 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“With the exception of flumiclorac and NAF-75, postemergence treatments controlled 75 to 90% of all four species.”
e1“in soybean.”
Claim · model-written summary
An Iowa common waterhemp biotype was not controlled by acetolactate synthase-inhibiting herbicides.
- Taxon
- soybean
Glycine maxe1 - Treatment
- acetolactate synthase-inhibiting herbicidese0
- Interactor
- common waterhempe0weed
- Outcome
- common waterhempe0
- Direction
- not controllede0
- Setting
- Iowae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“A biotype of common waterhemp collected in Iowa was not controlled by acetolactate synthase-inhibiting herbicides.”
e1“in soybean.”
Claim · model-written summary
Greenhouse results were similar to field results.
- Taxon
- soybean
Glycine maxe1 - Outcome
- Greenhouse results were similar to field experimentse0
- Setting
- Greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Greenhouse results were similar to field experiments.”
e1“in soybean.”
Claim · model-written summary
The authors concluded that proper herbicide selection can achieve at least 90% control of these Amaranthus species.
- Taxon
- soybean
Glycine maxe1 - Interactor
- Amaranthus species
Amaranthuse0weed - Outcome
- proper herbicide selectione0
- Value
- 90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_with_green_foliage%2C_photographed_in_Tamil_Nadu%2C_India.jpg?width=500)
Verbatim
e0“Results suggest at least 90% control of these Amaranthus species is possible with proper herbicide selection.”
e1“in soybean.”
The same questions in other papers
trifluralin · control · Glycine max (soybean)Positive and negative results
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See all 7 papers →pendimethalin · control · Glycine max (soybean)Positive and negative results
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See all 10 papers →herbicide · control · Glycine max (soybean)Positive and negative results
98 papers in the same direction as this paper · 18 in the opposite direction · 6 reporting no difference from an alternative
- positive
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See all 123 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.