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
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.

Verbatim
e0“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”
t0“Alfalfa(Medicago sativa)”
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.

Verbatim
e0“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”
t0“Alfalfa(Medicago sativa)”
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.

Verbatim
e0“Disking alone and application of glyphosate or paraquat alone did not satisfactorily control all weeds.”
t0“Alfalfa(Medicago sativa)”
Claim · model-written summary
Combined herbicide and disking controlled weeds sufficiently for excellent alfalfa establishment.
- Taxon
- alfalfa
Medicago 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.

Verbatim
e0“However, the combination of a herbicide and disking controlled weeds enough to allow excellent establishment of alfalfa.”
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.

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.”
t0“Alfalfa(Medicago sativa)”
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.

Verbatim
e0“Glyphosate was better than paraquat for control of grass weeds.”
t0“Alfalfa(Medicago sativa)”
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.

Verbatim
e0“Paraquat approached glyphosate in effectiveness when a supplemental disking treatment was added.”
t0“Alfalfa(Medicago sativa)”
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.

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.”
t0“Alfalfa(Medicago sativa)”
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.

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.”
t0“Alfalfa(Medicago sativa)”
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.

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.”
t0“Alfalfa(Medicago sativa)”
The same questions in other papers
paraquat · weed · Medicago sativa (alfalfa)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →glyphosate · weed · Medicago sativa (alfalfa)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- no effect
7 papers more in this group
See all 11 papers →herbicide · growth · Medicago sativa (alfalfa)Positive and negative results
9 papers in the same direction as this paper · 8 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- 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.