Paper · 2009 · Zhongguo shucai

Application of calcium soil amendment in greenhouse tomato production.

Jiang Jing-jing; Liu Qing-hua; Junliang Li; et al.

9
claims
14
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Lab incubating and field experiments were conducted in order to study the influence of calcium soil amendment on soil properties of saline soil,yield and quality of tomato produced in greenhouse.The results showed that the dormant calcium soil amendment could change the ratio of exchangeable Ca2+ and Na+,decrease exchangeable Na+,pH,EC and total salt contents.The optimized applying rate was 1.50 mg·kg-1.Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse.Compared with the control treatment,the yield of tomato was increased by 18.7 % and the soluble solid content increased by 20.2 %,titratable acid reduced by 23.1 % and exchangeable calcium content was increased by 34.0 %.The soil physic-chemical characteristics in greenhouse is evidently improved.

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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dormant calcium soil amendment decreased exchangeable Na+ in saline soil.

Treatment
dormant calcium soil amendmente0
Outcome
exchangeable Na+e0
Direction
decreasee0

Not reportedTaxonComparator

Verbatim

e0

“the dormant calcium soil amendment could change the ratio of exchangeable Ca2+ and Na+,decrease exchangeable Na+,pH,EC and total salt contents”

✓ located verbatim in the source · abstract, characters 219–361 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dormant calcium soil amendment decreased soil pH, EC and total salt contents.

Treatment
dormant calcium soil amendmente0
Outcome
pH, EC and total salt contentse0
Direction
decreasee0

Not reportedTaxonComparator

Verbatim

e0

“the dormant calcium soil amendment could change the ratio of exchangeable Ca2+ and Na+,decrease exchangeable Na+,pH,EC and total salt contents”

✓ located verbatim in the source · abstract, characters 219–361 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Dormant calcium soil amendment changed the ratio of exchangeable Ca2+ and Na+ in soil.

Treatment
dormant calcium soil amendmente0
Outcome
ratio of exchangeable Ca2+ and Na+e0
Direction
changee0

Not reportedTaxonComparator

Verbatim

e0

“the dormant calcium soil amendment could change the ratio of exchangeable Ca2+ and Na+,decrease exchangeable Na+,pH,EC and total salt contents”

✓ located verbatim in the source · abstract, characters 219–361 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The optimized calcium soil amendment application rate was 1.50 mg·kg-1.

Outcome
optimized applying ratee1
Value
1.50 mg·kg-1e1

Not reportedTaxon

Verbatim

e1

“The optimized applying rate was 1.50 mg·kg-1”

✓ located verbatim in the source · abstract, characters 362–406 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium soil amendment increased tomato yield by 18.7% compared with the control treatment.

Treatment
increasing application of calcium soil amendmente2
Outcome
yield of tomatoe3
Direction
increasede3
Value
18.7 %e3
Comparator
control treatmente3

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse”

✓ located verbatim in the source · abstract, characters 407–574 · show in text ↑
e3

“Compared with the control treatment,the yield of tomato was increased by 18.7 % and the soluble solid content increased by 20.2 %,titratable acid reduced by 23.1 % and exchangeable calcium content was increased by 34.0 %”

✓ located verbatim in the source · abstract, characters 575–795 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium soil amendment increased soluble solid content of tomato by 20.2% compared with the control treatment.

Treatment
increasing application of calcium soil amendmente2
Outcome
soluble solid contente3
Direction
increasede3
Value
20.2 %e3
Comparator
control treatmente3

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse”

✓ located verbatim in the source · abstract, characters 407–574 · show in text ↑
e3

“Compared with the control treatment,the yield of tomato was increased by 18.7 % and the soluble solid content increased by 20.2 %,titratable acid reduced by 23.1 % and exchangeable calcium content was increased by 34.0 %”

✓ located verbatim in the source · abstract, characters 575–795 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium soil amendment reduced titratable acid of tomato by 23.1% compared with the control treatment.

Treatment
increasing application of calcium soil amendmente2
Outcome
titratable acide3
Direction
reducede3
Value
23.1 %e3
Comparator
control treatmente3

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse”

✓ located verbatim in the source · abstract, characters 407–574 · show in text ↑
e3

“Compared with the control treatment,the yield of tomato was increased by 18.7 % and the soluble solid content increased by 20.2 %,titratable acid reduced by 23.1 % and exchangeable calcium content was increased by 34.0 %”

✓ located verbatim in the source · abstract, characters 575–795 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium soil amendment increased exchangeable calcium content in soil by 34.0% compared with the control treatment.

Treatment
increasing application of calcium soil amendmente2
Outcome
exchangeable calcium contente3
Direction
increasede3
Value
34.0 %e3
Comparator
control treatmente3

Not reportedTaxon

Verbatim

e2

“Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse”

✓ located verbatim in the source · abstract, characters 407–574 · show in text ↑
e3

“Compared with the control treatment,the yield of tomato was increased by 18.7 % and the soluble solid content increased by 20.2 %,titratable acid reduced by 23.1 % and exchangeable calcium content was increased by 34.0 %”

✓ located verbatim in the source · abstract, characters 575–795 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Calcium soil amendment evidently improved the soil physic-chemical characteristics in the greenhouse.

Treatment
calcium soil amendmente2
Outcome
soil physic-chemical characteristicse4
Direction
improvede4

Not reportedTaxonComparator

Verbatim

e2

“Results from field experiment showed that increasing application of calcium soil amendment could notably improve the yield and quality of tomato produced in greenhouse”

✓ located verbatim in the source · abstract, characters 407–574 · show in text ↑
e4

“The soil physic-chemical characteristics in greenhouse is evidently improved”

✓ located verbatim in the source · abstract, characters 796–872 · show in text ↑

calcium atom · nutrient: content · Solanum lycopersicum (tomato)Results differ

53 papers: 43 positive, 10 negative or no effect

42 papers in the same direction as this paper · 10 in the opposite direction

  1. negative
  2. no effect
  3. no effect

49 papers more in this group

See all 53 papers →

calcium atom · yield · Solanum lycopersicum (tomato)Results differ

79 papers: 67 positive, 12 negative or no effect

66 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

75 papers more in this group

See all 79 papers →

calcium atom · physiology: ion balance · Solanum lycopersicum (tomato)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. negative
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

calcium atom · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results

22 papers: 16 positive, 6 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

18 papers more in this group

See all 22 papers →

calcium atom · soil: chemistry · Solanum lycopersicum (tomato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

other · soil: chemistry · Solanum lycopersicum (tomato)Positive and negative results

16 papers: 15 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

other · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results

38 papers: 36 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

34 papers more in this group

See all 38 papers →

other · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results

48 papers: 44 positive, 4 negative or no effect

43 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

44 papers more in this group

See all 48 papers →

8 of 10 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.