Paper · 2004

Effect of foliage top-dressing of potassium on the photosynthetic rate of apple trees

Cao Dong

5
claims
6
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Photosynthetic rate of apple trees may be improved and the phenomenon of noon break will be eased up to some extents after foliage top-dressing of potassium. It will improve and extend the photosynthetic rate of the apple trees in the same year as well as increase the storage of nutrition after five times of spraying potassium in apple growth period form May to October,and the effects will be kept up for twenty-five days after every spraying of potassium.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium top-dressing may improve the photosynthetic rate of apple trees

Taxon
apple treesMalus domesticae0
Treatment
foliage top-dressing of potassiume0
Outcome
Photosynthetic ratee0
Direction
improvede0
Qualifier
may be improvede0

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

e0

“Photosynthetic rate of apple trees may be improved and the phenomenon of noon break will be eased up to some extents after foliage top-dressing of potassium”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium top-dressing eases the noon break of photosynthesis in apple trees to some extent

Taxon
apple treesMalus domesticae0
Treatment
foliage top-dressing of potassiume0
Outcome
noon breake0
Direction
eased upe0
Qualifier
to some extentse0

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

e0

“Photosynthetic rate of apple trees may be improved and the phenomenon of noon break will be eased up to some extents after foliage top-dressing of potassium”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Five potassium sprays from May to October improved and extended the photosynthetic rate of apple trees in the same year

Taxon
apple treesMalus domesticae1
Treatment
five times of spraying potassium in apple growth period form May to Octobere1
Outcome
photosynthetic rate of the apple treese1
Direction
improve and extende1
Qualifier
in the same yeare1

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

e1

“It will improve and extend the photosynthetic rate of the apple trees in the same year as well as increase the storage of nutrition after five times of spraying potassium in apple growth period form May to October”

✓ located verbatim in the source · abstract, characters 158–371 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Five potassium sprays from May to October increased the storage of nutrition in apple trees

Taxon
apple treesMalus domesticae1
Treatment
five times of spraying potassium in apple growth period form May to Octobere1
Outcome
storage of nutritione1
Direction
increasee1

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

e1

“It will improve and extend the photosynthetic rate of the apple trees in the same year as well as increase the storage of nutrition after five times of spraying potassium in apple growth period form May to October”

✓ located verbatim in the source · abstract, characters 158–371 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Effects of potassium spraying on apple trees lasted twenty-five days after every spraying

Taxon
apple treesMalus domesticae0
Outcome
the effectse2
Value
twenty-five dayse2
Qualifier
after every sprayinge2

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

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

Verbatim

e0

“Photosynthetic rate of apple trees may be improved and the phenomenon of noon break will be eased up to some extents after foliage top-dressing of potassium”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e2

“the effects will be kept up for twenty-five days after every spraying of potassium”

✓ located verbatim in the source · abstract, characters 376–458 · show in text ↑

potassium · physiology: photosynthesis · Malus domestica (apple)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive
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fertilization · physiology: photosynthesis · Malus domestica (apple)Positive and negative results

13 papers: 12 positive, 1 negative or no effect

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

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  2. positive
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potassium · nutrient: content · Malus domestica (apple)Positive and negative results

19 papers: 13 positive, 6 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

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application · physiology: photosynthesis · Malus domestica (apple)Positive and negative results

21 papers: 9 positive, 12 negative or no effect

8 papers in the same direction as this paper · 12 in the opposite direction

  1. no effect
  2. negative
  3. no effect

17 papers more in this group

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application · nutrient: content · Malus domestica (apple)Positive and negative results

116 papers: 100 positive, 16 negative or no effect

99 papers in the same direction as this paper · 16 in the opposite direction

  1. no effect
  2. negative
  3. no effect

112 papers more in this group

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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.