Paper · 1970 · Netherlands Journal of Agricultural Science

The influence of soil steaming on some properties of the soil and on the growth and heading of winter glasshouse lettuce. III. The influence of nitrogen form, manganese level and shading studied in sand culture experiments with trickle irrigation.

G. Jager; J. Van der Boon; G.J.G Rauw

4
claims
6
verbatim quotes
9
citations
3
research areas
✓
Open access

Abstract

Heading of winter lettuce was impaired by poor light, and by NH4 and Mn accumulation resulting from soil steaming. The latter should be postponed until spring or done under relatively dry conditions, restricting the temperature and duration of treatment to a minimum. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Claims 4

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

poor light impaired winter lettuce heading.

Taxon
winter lettuceLactuca sativae0
Treatment
poor lighte0
Outcome
Headinge0
Direction
impairede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Heading of winter lettuce was impaired by poor light, and by NH4 and Mn accumulation resulting from soil steaming”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NH4 impaired winter lettuce heading.

Taxon
winter lettuceLactuca sativae0
Treatment
NH4e0
Outcome
Headinge0
Direction
impairede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Heading of winter lettuce was impaired by poor light, and by NH4 and Mn accumulation resulting from soil steaming”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mn impaired winter lettuce heading.

Taxon
winter lettuceLactuca sativae0
Treatment
Mne0
Outcome
Headinge0
Direction
impairede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Heading of winter lettuce was impaired by poor light, and by NH4 and Mn accumulation resulting from soil steaming”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend postponing soil steaming until spring or using relatively dry conditions and minimizing temperature and duration.

Taxon
winter lettuceLactuca sativat0
Treatment
soil steaminge1
Outcome
postponed until spring or done under relatively dry conditionse0

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The latter should be postponed until spring or done under relatively dry conditions, restricting the temperature and duration of treatment to a minimum”

✓ located verbatim in the source · abstract, characters 115–266 · show in text ↑
t0

“winter lettuce”

✓ located verbatim in the source · abstract, characters 11–25 · show in text ↑
e1

“Heading of winter lettuce was impaired by poor light, and by NH4 and Mn accumulation resulting from soil steaming”

✓ located verbatim in the source · abstract, characters 0–113 · show in text ↑

light · phenology · Lactuca sativa (garden lettuce)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
See all 3 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.