Paper · 1993 · 土壤圈(英文版)

Soil micronutrients and citrus growth

Ouyang Tao

13
claims
30
verbatim quotes
4
citations
4
research areas
—
Not open access

Abstract

By using nutritional diagnosis of citrus leaves and determining soil micronutrients, the relationship between soil micronutrients and citrus growth in southern China has been studied.Studies showed that there was a significant positive correlation between available micronutrients (such as Zn, Mo, Cu) in the soil and the corresponding nutrients in citrus leaves. Thus, one can roughly learn of the sufficiency or deficiency of certain nutrients in soils by analyzing citrus leaves. Rational spray of Zn B or Mo fertilizer not only improved citrus yields but also increased the total sugar of Satsuma mandarin and of Xinhui orange by 2.9 and 17.2% respectively compared with the control. Spraying Mo fertilizer increased the vitamin C content of Satsuma mandarin juice by 4.7%-8.4%, maturated fruits 7-10 days earlier and gave the peel a brighter color.The ultramicroscopic characteristics of Zn-deficient citrus leaves were investigated under an electron microscope. Results showed that the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast. As a result of spraying Zn fertilizer the structure of the cell returned to normal, the cytoplasm became rich and the amount of chloroplast increased. There also appeared a great deal of multiform endoplasmic reticula, thus promoting the photosynthesis of Zn-deficient plants. This provides a cytologico-theoretical basis for fertilization of high-yielding citrus trees.

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Claims 13

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Available soil micronutrients were significantly positively correlated with the corresponding nutrients in citrus leaves.

Taxon
citrusCitrust0
Compound
available micronutrientse1
Outcome
corresponding nutrients in citrus leavese1
Direction
positivee1

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e1

“there was a significant positive correlation between available micronutrients (such as Zn, Mo, Cu) in the soil and the corresponding nutrients in citrus leaves”

✓ located verbatim in the source · abstract, characters 203–362 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Rational spray of Zn, B or Mo fertilizer improved citrus yields.

Taxon
citrusCitrust0
Treatment
Rational spray of Zn B or Mo fertilizere2
Outcome
citrus yieldse2
Direction
improvede2

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e2

“Rational spray of Zn B or Mo fertilizer not only improved citrus yields”

✓ located verbatim in the source · abstract, characters 483–554 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rational spray of Zn, B or Mo fertilizer increased total sugar of Satsuma mandarin by 2.9% compared with the control.

Taxon
Satsuma mandarinCitrus unshiue3
Treatment
Rational spray of Zn B or Mo fertilizere2
Outcome
total sugare3
Direction
increasede3
Value
2.9e3
Qualifier
17.2% respectivelye3
Comparator
controle3

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

Citrus unshiu
Citrus unshiu · TaxonBatholith ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e2

“Rational spray of Zn B or Mo fertilizer not only improved citrus yields”

✓ located verbatim in the source · abstract, characters 483–554 · show in text ↑
e3

“increased the total sugar of Satsuma mandarin and of Xinhui orange by 2.9 and 17.2% respectively compared with the control”

✓ located verbatim in the source · abstract, characters 564–686 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rational spray of Zn, B or Mo fertilizer increased total sugar of Xinhui orange by 17.2% compared with the control.

Taxon
Xinhui orangee3
Treatment
Rational spray of Zn B or Mo fertilizere2
Outcome
total sugare3
Direction
increasede3
Value
17.2%e3
Comparator
controle3

Verbatim

e2

“Rational spray of Zn B or Mo fertilizer not only improved citrus yields”

✓ located verbatim in the source · abstract, characters 483–554 · show in text ↑
e3

“increased the total sugar of Satsuma mandarin and of Xinhui orange by 2.9 and 17.2% respectively compared with the control”

✓ located verbatim in the source · abstract, characters 564–686 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Mo fertilizer spraying increased vitamin C content of Satsuma mandarin juice by 4.7%-8.4%.

Taxon
Satsuma mandarinCitrus unshiue4
Treatment
Spraying Mo fertilizere4
Outcome
vitamin C contente4
Direction
increasede4
Value
4.7%-8.4%e4

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

Citrus unshiu
Citrus unshiu · TaxonBatholith ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e4

“Spraying Mo fertilizer increased the vitamin C content of Satsuma mandarin juice by 4.7%-8.4%”

✓ located verbatim in the source · abstract, characters 688–781 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Mo fertilizer spraying matured citrus fruits 7-10 days earlier.

Taxon
citrusCitrust0
Treatment
Spraying Mo fertilizere4
Outcome
maturated fruitse5
Direction
earliere5
Value
7-10 dayse5

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e4

“Spraying Mo fertilizer increased the vitamin C content of Satsuma mandarin juice by 4.7%-8.4%”

✓ located verbatim in the source · abstract, characters 688–781 · show in text ↑
e5

“maturated fruits 7-10 days earlier”

✓ located verbatim in the source · abstract, characters 783–817 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Mo fertilizer spraying gave the citrus peel a brighter color.

Taxon
citrusCitrust0
Treatment
Spraying Mo fertilizere4
Outcome
peele6
Direction
brighter colore6

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e4

“Spraying Mo fertilizer increased the vitamin C content of Satsuma mandarin juice by 4.7%-8.4%”

✓ located verbatim in the source · abstract, characters 688–781 · show in text ↑
e6

“gave the peel a brighter color”

✓ located verbatim in the source · abstract, characters 822–852 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Zn-deficient citrus leaf cells had poor cytoplasm, endoplasmic reticula and ribosomes.

Taxon
citrusCitrust0
Organ / stage
leaf celle7
Treatment
Zn-deficiente7
Outcome
poor cytoplasm, endoplasmic reticula and ribosomese7
Qualifier
mainlye7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e7

“the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast”

✓ located verbatim in the source · abstract, characters 988–1137 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Zn-deficient citrus leaf cells had big starch grains in the chloroplast.

Taxon
citrusCitrust0
Organ / stage
leaf celle7
Treatment
Zn-deficiente7
Outcome
big starch grainse7
Qualifier
in the chloroplaste7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e7

“the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast”

✓ located verbatim in the source · abstract, characters 988–1137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zn fertilizer spraying returned the structure of Zn-deficient citrus leaf cells to normal.

Taxon
citrusCitrust0
Treatment
spraying Zn fertilizere0
Outcome
structure of the celle0
Direction
returned to normale0
Comparator
Zn-deficiente7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e7

“the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast”

✓ located verbatim in the source · abstract, characters 988–1137 · show in text ↑
e0

“As a result of spraying Zn fertilizer the structure of the cell returned to normal, the cytoplasm became rich and the amount of chloroplast increased”

✓ located verbatim in the source · abstract, characters 1139–1288 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zn fertilizer spraying made the cytoplasm of Zn-deficient citrus leaf cells rich.

Taxon
citrusCitrust0
Treatment
spraying Zn fertilizere0
Outcome
cytoplasme0
Direction
became riche0
Comparator
Zn-deficiente7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e7

“the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast”

✓ located verbatim in the source · abstract, characters 988–1137 · show in text ↑
e0

“As a result of spraying Zn fertilizer the structure of the cell returned to normal, the cytoplasm became rich and the amount of chloroplast increased”

✓ located verbatim in the source · abstract, characters 1139–1288 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zn fertilizer spraying increased the amount of chloroplasts in Zn-deficient citrus leaf cells.

Taxon
citrusCitrust0
Treatment
spraying Zn fertilizere0
Outcome
amount of chloroplaste0
Direction
increasede0
Comparator
Zn-deficiente7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e7

“the Zn-deficient leaf cell was characterized mainly by poor cytoplasm, endoplasmic reticula and ribosomes and by big starch grains in the chloroplast”

✓ located verbatim in the source · abstract, characters 988–1137 · show in text ↑
e0

“As a result of spraying Zn fertilizer the structure of the cell returned to normal, the cytoplasm became rich and the amount of chloroplast increased”

✓ located verbatim in the source · abstract, characters 1139–1288 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Multiform endoplasmic reticula that appeared in Zn-deficient citrus leaves promote photosynthesis.

Taxon
citrusCitrust0
Outcome
photosynthesise0
Qualifier
multiform endoplasmic reticulae0

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“citrus growth”

✓ located verbatim in the source · title, characters 24–37 · show in text ↑
e0

“There also appeared a great deal of multiform endoplasmic reticula, thus promoting the photosynthesis of Zn-deficient plants”

✓ located verbatim in the source · abstract, characters 1290–1414 · show in text ↑

zinc atom · quality: sugar starch · Citrus unshiu (satsuma mandarin)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 →

fertilization · quality: sugar starch · Citrus unshiu (satsuma mandarin)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 →

application · quality: sugar starch · Citrus unshiu (satsuma mandarin)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 →

application · soil: physics · CitrusResults 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 · soil: physics · CitrusResults 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 →

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.