Paper · 2008 · Xibei nongye xuebao

Effects of Foliar Application of Zn Fertilizer on Nitrate Content and Nitrate Reductase(NR) Activity in Different Lettuce Organs

Miao Yan-fang

5
claims
9
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

Effects of foliar application of Zn fertilizer on nitrate and nitrate reductase(NR) in Lettuce were studied by methods of field experiment and lab analysis.Results indicated that nitrate contents was lowest,nitrate reductase(NR) activity and underground biomass were highest with 0.05% foliar application of Zn fertilizer,respectively.The nitrate distribution trend in different organs of Lettuce was rootstemleaf and with a contrary result for nitrate reductase(NR).

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrate content was lowest with 0.05% foliar zinc.

Taxon
LettuceLactuca sativat0
Treatment
0.05% foliar application of Zn fertilizere0
Outcome
nitrate contentse0
Direction
loweste0

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

“nitrate contents was lowest,nitrate reductase(NR) activity and underground biomass were highest with 0.05% foliar application of Zn fertilizer”

✓ located verbatim in the source · abstract, characters 179–321 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 114–121 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrate reductase activity was highest with 0.05% foliar zinc.

Taxon
LettuceLactuca sativat0
Treatment
0.05% foliar application of Zn fertilizere0
Gene
nitrate reductase(NR)e0
Outcome
nitrate reductase(NR) activitye0
Direction
higheste0

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

“nitrate reductase(NR) activity and underground biomass were highest with 0.05% foliar application of Zn fertilizer”

✓ located verbatim in the source · abstract, characters 207–321 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 114–121 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Underground biomass was highest with 0.05% foliar zinc.

Taxon
LettuceLactuca sativat0
Treatment
0.05% foliar application of Zn fertilizere0
Outcome
underground biomasse0
Direction
higheste0

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

“underground biomass were highest with 0.05% foliar application of Zn fertilizer”

✓ located verbatim in the source · abstract, characters 242–321 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 114–121 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nitrate distribution across lettuce organs followed rootstemleaf.

Taxon
LettuceLactuca sativae0
Outcome
nitrate distribution trende0
Qualifier
rootstemleafe0

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 nitrate distribution trend in different organs of Lettuce was rootstemleaf”

✓ located verbatim in the source · abstract, characters 335–413 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nitrate reductase showed the contrary organ distribution to nitrate.

Taxon
LettuceLactuca sativat0
Gene
nitrate reductase(NR)e0
Outcome
contrary result for nitrate reductase(NR)e0

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

“with a contrary result for nitrate reductase(NR)”

✓ located verbatim in the source · abstract, characters 418–466 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 114–121 · show in text ↑

zinc atom · growth · Lactuca sativa (garden lettuce)Results differ

15 papers: 7 positive, 8 negative or no effect

6 papers in the same direction as this paper · 8 in the opposite direction

  1. negative
  2. negative
  3. negative

11 papers more in this group

See all 15 papers →

zinc atom · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

16 papers: 14 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

12 papers more in this group

See all 16 papers →

zinc atom · physiology: enzyme activity · Lactuca sativa (garden lettuce)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · physiology: enzyme activity · Lactuca sativa (garden lettuce)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

application · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

24 papers: 22 positive, 2 negative or no effect

21 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. positive

20 papers more in this group

See all 24 papers →

application · growth · Lactuca sativa (garden lettuce)Positive and negative results

72 papers: 64 positive, 8 negative or no effect

63 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

68 papers more in this group

See all 72 papers →

fertilization · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

137 papers: 112 positive, 25 negative or no effect

111 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

133 papers more in this group

See all 137 papers →

fertilization · growth · Lactuca sativa (garden lettuce)Positive and negative results

248 papers: 202 positive, 46 negative or no effect

201 papers in the same direction as this paper · 45 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

244 papers more in this group

See all 248 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.