Paper · 1995 · Weed Technology

Reducing Johnsongrass (Sorghum halepense) Interference in Corn (Zea mays) with Herbicides and Cultivation

Gregory J. Steckel; Michael S. Defelice

6
claims
7
verbatim quotes
11
citations
2
research areas
—
Not open access

Abstract

Field studies were conducted in 1990 and 1991 to evaluate johnsongrass control and interference in corn using combinations of nicosulfuron, EPTC + dichlormid, and cultivation. Nicosulfuron applied to 30-cm-tall rhizome johnsongrass provided greater control and corn yield than a later application to 60-cm-tall johnsongrass. Johnsongrass control and corn yield within the later nicosulfuron treatment were improved by a preplant application of EPTC. EPTC and/or cultivation alone provided less johnsongrass control and lower corn yield than nicosulfuron or handweeding.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Earlier nicosulfuron treatment gave greater johnsongrass control than later treatment.

Taxon
Corn (Zea mays)Zea mayst0
Treatment
Nicosulfuron applied to 30-cm-tall rhizome johnsongrasse0
Interactor
johnsongrassSorghum halepensee0weed
Outcome
controle0
Direction
greatere0
Comparator
a later application to 60-cm-tall johnsongrasse0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Nicosulfuron applied to 30-cm-tall rhizome johnsongrass provided greater control and corn yield than a later application to 60-cm-tall johnsongrass”

✓ located verbatim in the source · abstract, characters 176–323 · show in text ↑
t0

“Corn (Zea mays)”

✓ located verbatim in the source · title, characters 58–73 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Earlier nicosulfuron treatment gave greater corn yield than later treatment.

Treatment
Nicosulfuron applied to 30-cm-tall rhizome johnsongrasse0
Interactor
johnsongrassSorghum halepensee0weed
Outcome
corn yielde0
Direction
greatere0
Comparator
a later application to 60-cm-tall johnsongrasse0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Nicosulfuron applied to 30-cm-tall rhizome johnsongrass provided greater control and corn yield than a later application to 60-cm-tall johnsongrass”

✓ located verbatim in the source · abstract, characters 176–323 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplant EPTC improved johnsongrass control under later nicosulfuron.

Treatment
a preplant application of EPTCe0
Interactor
JohnsongrassSorghum halepensee0weed
Outcome
Johnsongrass controle0
Direction
improvede0
Comparator
later nicosulfuron treatmente0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Johnsongrass control and corn yield within the later nicosulfuron treatment were improved by a preplant application of EPTC”

✓ located verbatim in the source · abstract, characters 325–448 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplant EPTC improved corn yield under later nicosulfuron.

Treatment
a preplant application of EPTCe0
Interactor
JohnsongrassSorghum halepensee0weed
Outcome
corn yielde0
Direction
improvede0
Comparator
later nicosulfuron treatmente0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Johnsongrass control and corn yield within the later nicosulfuron treatment were improved by a preplant application of EPTC”

✓ located verbatim in the source · abstract, characters 325–448 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

EPTC or cultivation alone controlled less johnsongrass than nicosulfuron or handweeding.

Treatment
EPTC and/or cultivation alonee0
Interactor
johnsongrassSorghum halepensee0weed
Outcome
johnsongrass controle0
Direction
lesse0
Comparator
nicosulfuron or handweedinge0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“EPTC and/or cultivation alone provided less johnsongrass control and lower corn yield than nicosulfuron or handweeding”

✓ located verbatim in the source · abstract, characters 450–568 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

EPTC or cultivation alone gave lower corn yield than nicosulfuron or handweeding.

Treatment
EPTC and/or cultivation alonee0
Interactor
johnsongrassSorghum halepensee0weed
Outcome
corn yielde0
Direction
lowere0
Comparator
nicosulfuron or handweedinge0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum halepense
Sorghum halepense · InteractorMatt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“EPTC and/or cultivation alone provided less johnsongrass control and lower corn yield than nicosulfuron or handweeding”

✓ located verbatim in the source · abstract, characters 450–568 · show in text ↑

nicosulfuron · yield · Zea mays (maize)Results differ

59 papers: 40 positive, 19 negative or no effect

39 papers in the same direction as this paper · 19 in the opposite direction

  1. positive
  2. positive
  3. positive

55 papers more in this group

See all 59 papers →

Sorghum halepense · yield · Zea mays (maize)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. negative

2 papers more in this group

See all 6 papers →

nicosulfuron · control · Zea mays (maize)Positive and negative results

30 papers: 26 positive, 4 negative or no effect

25 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

26 papers more in this group

See all 30 papers →

EPTC · Sorghum halepense · Zea mays (maize)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.