Paper · 1998 · Weed Technology

Herbicide Efficacy on FourAmaranthusSpecies in Soybean (Glycine max)

Jonathan K. Sweat; Michael J. Horak; Dallas E. Peterson; et al.

7
claims
14
verbatim quotes
73
citations
2
research areas
—
Not open access

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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nine of eleven preemergence treatments controlled all four species by at least 90% in field studies.

Taxon
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“In field studies, nine of eleven preemergence treatments controlled all four species 90% or more.”

✓ located verbatim in the source · abstract, characters 238–335 · show in text ↑
e1

“tumble pigweed, Palmer amaranth, redroot pigweed, and two biotypes of common waterhemp in soybean.”

✓ located verbatim in the source · abstract, characters 139–237 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pendimethalin controlled three named pigweeds less than other incorporated and preemergence treatments.

Taxon
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“pendimethalin and trifluralin controlled Palmer amaranth, redroot pigweed, and tumble pigweed less than the other preplant incorporated and preemergence treatments.”

✓ located verbatim in the source · abstract, characters 345–509 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin controlled three named pigweeds less than other incorporated and preemergence treatments.

Taxon
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“pendimethalin and trifluralin controlled Palmer amaranth, redroot pigweed, and tumble pigweed less than the other preplant incorporated and preemergence treatments.”

✓ located verbatim in the source · abstract, characters 345–509 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Postemergence treatments other than two exceptions controlled 75–90% of all four species.

Taxon
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“With the exception of flumiclorac and NAF-75, postemergence treatments controlled 75 to 90% of all four species.”

✓ located verbatim in the source · abstract, characters 510–622 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

An Iowa common waterhemp biotype was not controlled by acetolactate synthase-inhibiting herbicides.

Taxon
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“A biotype of common waterhemp collected in Iowa was not controlled by acetolactate synthase-inhibiting herbicides.”

✓ located verbatim in the source · abstract, characters 623–737 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Greenhouse results were similar to field results.

Taxon
soybeanGlycine maxe1
Outcome
Greenhouse results were similar to field experimentse0
Setting
Greenhousee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Greenhouse results were similar to field experiments.”

✓ located verbatim in the source · abstract, characters 738–791 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors concluded that proper herbicide selection can achieve at least 90% control of these Amaranthus species.

Taxon
soybeanGlycine maxe1
Interactor
Amaranthus speciesAmaranthuse0weed
Outcome
proper herbicide selectione0
Value
90%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Amaranthus
Amaranthus · Interactor · picture from its Wikimedia Commons categoryClintacc · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Results suggest at least 90% control of these Amaranthus species is possible with proper herbicide selection.”

✓ located verbatim in the source · abstract, characters 792–901 · show in text ↑
e1

“in soybean.”

✓ located verbatim in the source · abstract, characters 226–237 · show in text ↑

trifluralin · control · Glycine max (soybean)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

6 in the opposite direction

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

pendimethalin · control · Glycine max (soybean)Positive and negative results

10 papers: 7 positive, 3 negative or no effect

2 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

herbicide · control · Glycine max (soybean)Positive and negative results

123 papers: 99 positive, 24 negative or no effect

98 papers in the same direction as this paper · 18 in the opposite direction · 6 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

119 papers more in this group

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.