Abstract
Rye planted as a winter crop slightly reduced the severity of corky root early in the growing season of a subsequent lettuce crop, but at harvest the suppressive effect was observed in only one of four lettuce crops. Lettuce yields were not affected by cover crop use. Side-dressing with ammonium nitrate increased corky root severity in most plots and reduced yield in all plots. There were no significant interactions between cover crops and nitrogen fertilization with respect to lettuce yield (...)
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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
Claim · model-written summary
Winter rye slightly reduced early corky root severity in the subsequent lettuce crop.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Rye planted as a winter crope0
- Outcome
- severity of corky roote0
- Direction
- reducede0
- Qualifier
- early in the growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Rye planted as a winter crop slightly reduced the severity of corky root early in the growing season of a subsequent lettuce crop”
Claim · model-written summary
At harvest, rye suppressed corky root in only one of four lettuce crops.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Rye planted as a winter crope1
- Outcome
- corky roote1
- Direction
- suppressivee0
- Value
- one of four lettuce cropse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“at harvest the suppressive effect was observed in only one of four lettuce crops”
e1“Rye planted as a winter crop slightly reduced the severity of corky root early in the growing season of a subsequent lettuce crop”
Claim · model-written summary
Cover crop use did not affect lettuce yield.
- Taxon
- Lettuce
Lactuca sativae0 - Treatment
- cover crop usee0
- Outcome
- yieldse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Lettuce yields were not affected by cover crop use.”
Claim · model-written summary
Ammonium nitrate side dressing increased corky root severity in most plots.
- Treatment
- Side-dressing with ammonium nitratee0
- Outcome
- corky root severitye0
- Direction
- increasede0
- Qualifier
- most plotse0
Not reportedTaxonComparator
Verbatim
e0“Side-dressing with ammonium nitrate increased corky root severity in most plots”
Claim · model-written summary
Ammonium nitrate side dressing reduced lettuce yield in all plots.
- Taxon
- Lettuce
Lactuca sativae1 - Treatment
- Side-dressing with ammonium nitratee0
- Outcome
- yielde0
- Direction
- reducede0
- Qualifier
- all plotse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Side-dressing with ammonium nitrate increased corky root severity in most plots and reduced yield in all plots.”
e1“Lettuce yields were not affected by cover crop use.”
Claim · model-written summary
Cover crop and nitrogen fertilization did not interact significantly for lettuce yield.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- cover crops and nitrogen fertilizatione0
- Outcome
- yielde0
- Direction
- no significant interactionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“There were no significant interactions between cover crops and nitrogen fertilization with respect to lettuce yield”
The same questions in other papers
ammonium nitrate · yield · Lactuca sativa (garden lettuce)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
cover crop · yield · Lactuca sativa (garden lettuce)Results differ
3 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 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.