Paper · 2004 · Jilin Agricultural Sciences

Studies on Techniques of Nitrogen Fertilizer Application in Sunflower on Salinized Soil

Liwei Diao

5
claims
9
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

The yield of sunflower grown on salinized soil was significantly increased by nitrogen fertilizer application. The lower the content of soluble N, the more yield increase was gained, The yield was increased by 28.8 percent to 51.8 percent. The proper nitrogen application amount was 85 to 102 kg per hectare. The yield was more significantly increased by nitrogen fertilizer application combining with phosphate and potash fertilizer. The best effect was gained when 1/3 of total nitrogen fertilizer was applied while sowing and the others applied at the flower bud appearing period.

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Claims 5

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer significantly increased sunflower yield by 28.8 to 51.8 percent.

Taxon
sunflowerHelianthus annuuse0
Treatment
nitrogen fertilizer applicatione0
Outcome
yielde0
Direction
increasede0
Value
28.8 percent to 51.8 percente0
Setting
salinized soile0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The yield of sunflower grown on salinized soil was significantly increased by nitrogen fertilizer application. The lower the content of soluble N, the more yield increase was gained, The yield was increased by 28.8 percent to 51.8 percent”

✓ located verbatim in the source · abstract, characters 0–238 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower soluble N content corresponded to a greater yield increase.

Taxon
SunflowerHelianthus annuust0
Compound
soluble Ne0
Outcome
yield increasee0
Direction
moree0

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The lower the content of soluble N, the more yield increase was gained”

✓ located verbatim in the source · abstract, characters 111–181 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 60–69 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The proper nitrogen application amount was 85 to 102 kg per hectare.

Taxon
SunflowerHelianthus annuust0
Outcome
proper nitrogen application amounte0
Value
85 to 102 kg per hectaree0

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The proper nitrogen application amount was 85 to 102 kg per hectare”

✓ located verbatim in the source · abstract, characters 240–307 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 60–69 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combining nitrogen with phosphate and potash fertilizer increased yield more.

Taxon
SunflowerHelianthus annuust0
Treatment
nitrogen fertilizer application combining with phosphate and potash fertilizere0
Outcome
yielde0
Direction
increasede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The yield was more significantly increased by nitrogen fertilizer application combining with phosphate and potash fertilizer”

✓ located verbatim in the source · abstract, characters 309–433 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 60–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The best effect came from applying one third nitrogen at sowing and the remainder at flower bud appearance.

Taxon
SunflowerHelianthus annuust0
Treatment
1/3 of total nitrogen fertilizer was applied while sowing and the others applied at the flower bud appearing periode0
Outcome
best effecte0
Direction
beste0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The best effect was gained when 1/3 of total nitrogen fertilizer was applied while sowing and the others applied at the flower bud appearing period”

✓ located verbatim in the source · abstract, characters 435–582 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 60–69 · show in text ↑

phosphorus · yield · Helianthus annuus (common sunflower)Results differ

81 papers: 79 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

77 papers more in this group

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potassium · yield · Helianthus annuus (common sunflower)Positive and negative results

51 papers: 48 positive, 3 negative or no effect

47 papers in the same direction as this paper · 3 in the opposite direction

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

47 papers more in this group

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fertilization · yield · Helianthus annuus (common sunflower)Positive and negative results

365 papers: 344 positive, 21 negative or no effect

343 papers in the same direction as this paper · 18 in the opposite direction · 3 reporting no difference from an alternative

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

361 papers more in this group

See all 365 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.