Paper · 1995 · Weed Technology

Rapeseed (Brassica napus) Green Manure Crop Suppresses Weeds in Potato (Solanum tuberosum)

Rick A. Boydston; Ann Hang

10
claims
22
verbatim quotes
180
citations
2
research areas
—
Not open access

Abstract

Fall-planted rapeseed and sudangrass were evaluated for weed control in potato during a two-year study. Rapeseed incorporated in the spring in a loamy sand soil reduced weed density 85 and 73% in 1992 and 1993, respectively, and reduced weed biomass 96 and 50% in 1992 and 1993, respectively, in following potato crops compared to potato after fallow. Potato following rapeseed yielded 25% and 17% more total tuber weight than potato following sudangrass in 1992 and fallow in 1993, respectively. In greenhouse trials, rapeseed tissue added to a loamy sand soil at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and longspine sandbur by 90 and 83%, respectively. Similarly, white mustard tissue added at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and green foxtail by 83 and 70%, respectively.

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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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed incorporation reduced weed density by 85% in 1992 relative to fallow.

Treatment
Rapeseed incorporated in the springe0
Outcome
weed densitye0
Direction
reducede0
Value
85e0
Qualifier
1992e0
Comparator
potato after fallowe1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Rapeseed incorporated in the spring in a loamy sand soil reduced weed density 85 and 73% in 1992 and 1993, respectively”

✓ located verbatim in the source · abstract, characters 104–223 · show in text ↑
e1

“in following potato crops compared to potato after fallow.”

✓ located verbatim in the source · abstract, characters 293–351 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed incorporation reduced weed density by 73% in 1993 relative to fallow.

Treatment
Rapeseed incorporated in the springe0
Outcome
weed densitye0
Direction
reducede0
Value
73%e0
Qualifier
1993e0
Comparator
potato after fallowe1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Rapeseed incorporated in the spring in a loamy sand soil reduced weed density 85 and 73% in 1992 and 1993, respectively”

✓ located verbatim in the source · abstract, characters 104–223 · show in text ↑
e1

“in following potato crops compared to potato after fallow.”

✓ located verbatim in the source · abstract, characters 293–351 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed incorporation reduced weed biomass by 96% in 1992 relative to fallow.

Treatment
Rapeseed incorporated in the springe1
Outcome
weed biomasse0
Direction
reducede0
Value
96e0
Qualifier
1992e0
Comparator
potato after fallowe0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“reduced weed biomass 96 and 50% in 1992 and 1993, respectively, in following potato crops compared to potato after fallow.”

✓ located verbatim in the source · abstract, characters 229–351 · show in text ↑
e1

“Rapeseed incorporated in the spring”

✓ located verbatim in the source · abstract, characters 104–139 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed incorporation reduced weed biomass by 50% in 1993 relative to fallow.

Treatment
Rapeseed incorporated in the springe1
Outcome
weed biomasse0
Direction
reducede0
Value
50%e0
Qualifier
1993e0
Comparator
potato after fallowe0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“reduced weed biomass 96 and 50% in 1992 and 1993, respectively, in following potato crops compared to potato after fallow.”

✓ located verbatim in the source · abstract, characters 229–351 · show in text ↑
e1

“Rapeseed incorporated in the spring”

✓ located verbatim in the source · abstract, characters 104–139 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potato after rapeseed yielded 25% more tuber weight than after sudangrass in 1992.

Treatment
following rapeseede0
Outcome
total tuber weighte0
Direction
moree0
Value
25%e0
Qualifier
1992e0
Comparator
potato following sudangrasse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potato following rapeseed yielded 25% and 17% more total tuber weight than potato following sudangrass in 1992 and fallow in 1993, respectively.”

✓ located verbatim in the source · abstract, characters 352–496 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potato after rapeseed yielded 17% more tuber weight than after fallow in 1993.

Treatment
following rapeseede0
Outcome
total tuber weighte0
Direction
moree0
Value
17%e0
Qualifier
1993e0
Comparator
fallowe0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potato following rapeseed yielded 25% and 17% more total tuber weight than potato following sudangrass in 1992 and fallow in 1993, respectively.”

✓ located verbatim in the source · abstract, characters 352–496 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed tissue reduced hairy nightshade biomass by 90% in greenhouse soil.

Treatment
rapeseed tissue added to a loamy sand soil at 20 g fresh weight per 400 g dry soile0
Interactor
hairy nightshadee0weed
Outcome
biomass of hairy nightshadee0
Direction
reducede0
Value
90e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“In greenhouse trials, rapeseed tissue added to a loamy sand soil at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and longspine sandbur by 90 and 83%, respectively.”

✓ located verbatim in the source · abstract, characters 497–688 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rapeseed tissue reduced longspine sandbur biomass by 83% in greenhouse soil.

Treatment
rapeseed tissue added to a loamy sand soil at 20 g fresh weight per 400 g dry soile0
Interactor
longspine sandbure0weed
Outcome
longspine sandbure0
Direction
reducede0
Value
83%e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“In greenhouse trials, rapeseed tissue added to a loamy sand soil at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and longspine sandbur by 90 and 83%, respectively.”

✓ located verbatim in the source · abstract, characters 497–688 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

White mustard tissue reduced hairy nightshade biomass by 83%.

Treatment
white mustard tissue added at 20 g fresh weight per 400 g dry soile0
Interactor
hairy nightshadee0weed
Outcome
biomass of hairy nightshadee0
Direction
reducede0
Value
83e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“white mustard tissue added at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and green foxtail by 83 and 70%, respectively.”

✓ located verbatim in the source · abstract, characters 700–849 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

White mustard tissue reduced green foxtail biomass by 70%.

Treatment
white mustard tissue added at 20 g fresh weight per 400 g dry soile0
Interactor
green foxtaile0weed
Outcome
green foxtaile0
Direction
reducede0
Value
70%e0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“white mustard tissue added at 20 g fresh weight per 400 g dry soil reduced biomass of hairy nightshade and green foxtail by 83 and 70%, respectively.”

✓ located verbatim in the source · abstract, characters 700–849 · show in text ↑
t0

“Potato”

✓ located verbatim in the source · title, characters 64–70 · show in text ↑

growing medium · growth · Solanum tuberosum (potato)Positive and negative results

14 papers: 12 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

10 papers more in this group

See all 14 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.