Paper · 1978 · Weed Science

Control of Yellow Nutsedge(Cyperus esculentus)and Other Weeds Before Summer Planting of Alfalfa(Medicago sativa)

D. L. Linscott; R. D. Hagin; T. Tharawanich

10
claims
19
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

After land was plowed in the spring and prepared for planting, yellow nutsedge (Cyperus esculentus L.) was allowed to develop to heights of 10 to 12 and 20 to 25 cm. Either glyphosate [ N -(phosphonomethyl)glycine] or paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) was applied to emerged yellow nutsedge and other annual weeds at rates of 0.5, 1, 2, and 4 kg/ha. Half of the plots were double-disked 3 days after herbicide applications, and then all plots were planted with alfalfa (Medicago sativa L. ‘Cayuga’). Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds. However, the combination of a herbicide and disking controlled weeds enough to allow excellent establishment of alfalfa. In the year after establishment, the first cutting yields from the better combination treatments ranged from 3000 to 4400 kg/ha, which is normal for mid- to late-summer plantings in the region. Glyphosate was better than paraquat for control of grass weeds. Paraquat approached glyphosate in effectiveness when a supplemental disking treatment was added. Disking was as effective as the herbicide treatments for control of yellow nutsedge but not for control of broadleaf or annual grass weeds.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 resultnegativemeasured

Claim · model-written summary

Disking alone did not satisfactorily control all weeds before alfalfa planting.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Disking alonee0
Outcome
control all weedse0
Direction
did not satisfactorilye0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”

✓ located verbatim in the source · abstract, characters 513–616 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

glyphosate alone did not satisfactorily control all weeds before alfalfa planting.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
glyphosatee0
Outcome
control all weedse0
Direction
did not satisfactorilye0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”

✓ located verbatim in the source · abstract, characters 513–616 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

paraquat alone did not satisfactorily control all weeds before alfalfa planting.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
paraquate0
Outcome
control all weedse0
Direction
did not satisfactorilye0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”

✓ located verbatim in the source · abstract, characters 513–616 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined herbicide and disking controlled weeds sufficiently for excellent alfalfa establishment.

Taxon
alfalfaMedicago sativae0
Treatment
combination of a herbicide and diskinge0
Interactor
weedse0weed
Outcome
excellent establishment of alfalfae0
Direction
excellente0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“However, the combination of a herbicide and disking controlled weeds enough to allow excellent establishment of alfalfa.”

✓ located verbatim in the source · abstract, characters 617–737 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

First-cutting yields from better combined treatments were 3000 to 4400 kg/ha in the following year.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
better combination treatmentse0
Outcome
first cutting yieldse0
Value
3000 to 4400 kg/hae0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“In the year after establishment, the first cutting yields from the better combination treatments ranged from 3000 to 4400 kg/ha, which is normal for mid- to late-summer plantings in the region.”

✓ located verbatim in the source · abstract, characters 738–931 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate controlled grass weeds better than paraquat.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Glyphosatee0
Interactor
grass weedse0weed
Outcome
control of grass weedse0
Direction
bettere0
Comparator
paraquate0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Glyphosate was better than paraquat for control of grass weeds.”

✓ located verbatim in the source · abstract, characters 932–995 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Supplemental disking made paraquat approach glyphosate in effectiveness.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Paraquate0
Outcome
effectivenesse0
Direction
approachede0
Qualifier
supplemental disking treatmente0
Comparator
glyphosatee0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Paraquat approached glyphosate in effectiveness when a supplemental disking treatment was added.”

✓ located verbatim in the source · abstract, characters 996–1092 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Disking was as effective as herbicides against yellow nutsedge.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Diskinge0
Interactor
yellow nutsedgee0weed
Outcome
control of yellow nutsedgee0
Direction
as effectivee0
Comparator
herbicide treatmentse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking was as effective as the herbicide treatments for control of yellow nutsedge but not for control of broadleaf or annual grass weeds.”

✓ located verbatim in the source · abstract, characters 1093–1232 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Disking was less effective than herbicide treatments for broadleaf control.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Diskinge0
Interactor
broadleafe0weed
Outcome
broadleafe0
Direction
note0
Comparator
herbicide treatmentse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking was as effective as the herbicide treatments for control of yellow nutsedge but not for control of broadleaf or annual grass weeds.”

✓ located verbatim in the source · abstract, characters 1093–1232 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Disking was less effective than herbicide treatments for annual grass weeds control.

Taxon
Alfalfa(Medicago sativa)Medicago sativat0
Treatment
Diskinge0
Interactor
annual grass weedse0weed
Outcome
annual grass weedse0
Direction
note0
Comparator
herbicide treatmentse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Disking was as effective as the herbicide treatments for control of yellow nutsedge but not for control of broadleaf or annual grass weeds.”

✓ located verbatim in the source · abstract, characters 1093–1232 · show in text ↑
t0

“Alfalfa(Medicago sativa)”

✓ located verbatim in the source · title, characters 88–112 · show in text ↑

paraquat · weed · Medicago sativa (alfalfa)Positive and negative results

8 papers: 5 positive, 3 negative or no effect

2 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

glyphosate · weed · Medicago sativa (alfalfa)Positive and negative results

11 papers: 7 positive, 4 negative or no effect

6 papers in the same direction as this paper · 2 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

7 papers more in this group

See all 11 papers →

herbicide · growth · Medicago sativa (alfalfa)Positive and negative results

20 papers: 10 positive, 10 negative or no effect

9 papers in the same direction as this paper · 8 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

16 papers more in this group

See all 20 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.