Paper · 2004 · Korean Journal of Soil Science and Fertilizer

Effect of Oyster Shell Powder on Soil pH and Growth and Yield of Apple

Seong-Tae Lee; Young Han Lee; Young‐Jin Lee; et al.

10
claims
24
verbatim quotes
2
citations
2
research areas
—
Not open access

Abstract

Effects of oyster shell powder as a liming material were investigated in an apple orchard. Soil texture of the apple orchard was silty clay loam (Upyeong series with 7% of slope) and topsoil pH was 5.6. Treatments of 1,590 kg oyster shell powder and calcium-magnesium carbonate as much as oyster shell powder were included in the experiment. With treatments of oyster shell powder and calcium-magnesium carbonate, the length, number and diameter of new branches and the diameter of main, secondary and side branches increased in comparison with control. With oyster shell powder application, soil pH increased from 5.6 to 6.8 at the harvest. In addition, it increased exchangeable Ca from 2.6 to . But it didn't make any difference in chlorophyll, sugar and malic acid contents. The apple weight per fruit of oyster shell powder application was 9 g more than that of control. Apple yield was highest () in the oyster shell powder treatment, and the yield increase was significantly different at 5% level LSD. We concluded that the oyster shell powder can be an alternative of lime and effective to restore soil nutrient balance in apple orchard soil.

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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oyster shell powder increased the length, number and diameter of new branches compared with control.

Treatment
oyster shell powdere1
Outcome
length, number and diameter of new branchese1
Direction
increasede1
Comparator
controle1
Setting
apple orcharde0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e0

“investigated in an apple orchard”

✓ located verbatim in the source · abstract, characters 57–89 · show in text ↑
e1

“With treatments of oyster shell powder and calcium-magnesium carbonate, the length, number and diameter of new branches and the diameter of main, secondary and side branches increased in comparison with control”

✓ located verbatim in the source · abstract, characters 342–552 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium-magnesium carbonate increased the length, number and diameter of new branches compared with control.

Treatment
calcium-magnesium carbonatee1
Outcome
length, number and diameter of new branchese1
Direction
increasede1
Comparator
controle1
Setting
apple orcharde0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e0

“investigated in an apple orchard”

✓ located verbatim in the source · abstract, characters 57–89 · show in text ↑
e1

“With treatments of oyster shell powder and calcium-magnesium carbonate, the length, number and diameter of new branches and the diameter of main, secondary and side branches increased in comparison with control”

✓ located verbatim in the source · abstract, characters 342–552 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oyster shell powder increased the diameter of main, secondary and side branches compared with control.

Treatment
oyster shell powdere1
Outcome
diameter of main, secondary and side branchese1
Direction
increasede1
Comparator
controle1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e1

“With treatments of oyster shell powder and calcium-magnesium carbonate, the length, number and diameter of new branches and the diameter of main, secondary and side branches increased in comparison with control”

✓ located verbatim in the source · abstract, characters 342–552 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium-magnesium carbonate increased the diameter of main, secondary and side branches compared with control.

Treatment
calcium-magnesium carbonatee1
Outcome
diameter of main, secondary and side branchese1
Direction
increasede1
Comparator
controle1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e1

“With treatments of oyster shell powder and calcium-magnesium carbonate, the length, number and diameter of new branches and the diameter of main, secondary and side branches increased in comparison with control”

✓ located verbatim in the source · abstract, characters 342–552 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oyster shell powder application increased soil pH from 5.6 to 6.8 at harvest.

Treatment
oyster shell powder applicatione2
Outcome
soil pHe2
Direction
increasede2
Value
5.6 to 6.8e2

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e2

“With oyster shell powder application, soil pH increased from 5.6 to 6.8 at the harvest”

✓ located verbatim in the source · abstract, characters 554–640 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oyster shell powder application increased exchangeable Ca.

Treatment
oyster shell powder applicatione2
Outcome
exchangeable Cae3
Direction
increasede3

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e2

“With oyster shell powder application, soil pH increased from 5.6 to 6.8 at the harvest”

✓ located verbatim in the source · abstract, characters 554–640 · show in text ↑
e3

“it increased exchangeable Ca from 2.6 to”

✓ located verbatim in the source · abstract, characters 655–695 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Oyster shell powder made no difference in chlorophyll, sugar and malic acid contents.

Treatment
oyster shell powdere0
Outcome
chlorophyll, sugar and malic acid contentse4
Direction
didn't make any differencee4

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e0

“Effects of oyster shell powder as a liming material”

✓ located verbatim in the source · abstract, characters 0–51 · show in text ↑
e4

“it didn't make any difference in chlorophyll, sugar and malic acid contents”

✓ located verbatim in the source · abstract, characters 702–777 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oyster shell powder application increased apple weight per fruit by 9 g compared with control.

Treatment
oyster shell powder applicatione5
Outcome
apple weight per fruite5
Direction
moree5
Value
9 ge5
Comparator
controle5

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e5

“The apple weight per fruit of oyster shell powder application was 9 g more than that of control”

✓ located verbatim in the source · abstract, characters 779–874 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Oyster shell powder treatment gave the highest apple yield, with the yield increase significant at the 5% level (LSD).

Treatment
oyster shell powder treatmente6
Outcome
Apple yielde6
Direction
higheste6
Qualifier
significantly different at 5% level LSDe6

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e6

“Apple yield was highest () in the oyster shell powder treatment, and the yield increase was significantly different at 5% level LSD”

✓ located verbatim in the source · abstract, characters 876–1007 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend oyster shell powder as a lime alternative that restores soil nutrient balance in apple orchard soil.

Treatment
oyster shell powdere7
Outcome
restore soil nutrient balancee7

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

t0

“Growth and Yield of Apple”

✓ located verbatim in the source · title, characters 45–70 · show in text ↑
e7

“the oyster shell powder can be an alternative of lime and effective to restore soil nutrient balance in apple orchard soil”

✓ located verbatim in the source · abstract, characters 1027–1149 · show in text ↑

carbonate · growth · Malus domestica (apple)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 →

botanical · physiology: pigments · Malus domestica (apple)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

5 in the opposite direction

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

botanical · yield · Malus domestica (apple)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

botanical · growth · Malus domestica (apple)Positive and negative results

17 papers: 15 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

13 papers more in this group

See all 17 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.