Paper · 2008 · System Sciences and Comprehensive Studies in Agriculture

Effect of Nitrogen and Sulfur Fertilizer on Yield and Quality in Onion

Shengli Liu

12
claims
24
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

A two years stationary experiment in 2006 was conducted.The results showed that reasonable amount of nitrogen and sulfur fixed fertilizer increased sphere diameter and yield of onion,and improved quality significantly.Increase of 0.91 cm-1.26cm of sphere diameter and 1 705 kg/hm2-2 423 kg/hm2 of yield in onion was observed by nitrogen fertilization.Furthermore,nitrogen increased soluble sugar,soluble protein and vitamin C by 13.51%-23.23%,7.31%-15.64% and 5.76%-6.82%,respectively.Sulfur fertilizer increased sphere diameter of onion at 0.33cm,and increased soluble sugar,soluble protein and vitamin C by 10.42%,8.63% and 8.25%,respectively.Otherwise,the effect of nitrogen and sulfur on yield and sphere diameter of onion was independent.Excessive application of nitrogen and sulfur fertilizer would increase nitrate accumulation in onion.

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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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization increased onion bulb diameter by 0.91–1.26 cm.

Taxon
onionAllium cepat0
Treatment
nitrogen fertilizatione0
Outcome
sphere diametere0
Direction
Increasee0
Value
0.91 cm-1.26cme0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Increase of 0.91 cm-1.26cm of sphere diameter and 1 705 kg/hm2-2 423 kg/hm2 of yield in onion was observed by nitrogen fertilization.”

✓ located verbatim in the source · abstract, characters 218–351 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization increased onion yield by 1 705–2 423 kg/hm2.

Taxon
onionAllium cepat0
Treatment
nitrogen fertilizatione0
Outcome
yielde0
Direction
Increasee0
Value
1 705 kg/hm2-2 423 kg/hm2e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Increase of 0.91 cm-1.26cm of sphere diameter and 1 705 kg/hm2-2 423 kg/hm2 of yield in onion was observed by nitrogen fertilization.”

✓ located verbatim in the source · abstract, characters 218–351 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization increased onion soluble sugar by 13.51%-23.23%.

Taxon
onionAllium cepat0
Treatment
nitrogene0
Outcome
soluble sugare0
Direction
increasede0
Value
13.51%-23.23%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore,nitrogen increased soluble sugar,soluble protein and vitamin C by 13.51%-23.23%,7.31%-15.64% and 5.76%-6.82%,respectively.”

✓ located verbatim in the source · abstract, characters 351–485 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization increased onion soluble protein by 7.31%-15.64%.

Taxon
onionAllium cepat0
Treatment
nitrogene0
Outcome
soluble proteine0
Direction
increasede0
Value
7.31%-15.64%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore,nitrogen increased soluble sugar,soluble protein and vitamin C by 13.51%-23.23%,7.31%-15.64% and 5.76%-6.82%,respectively.”

✓ located verbatim in the source · abstract, characters 351–485 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization increased onion vitamin C by 5.76%-6.82%.

Taxon
onionAllium cepat0
Treatment
nitrogene0
Outcome
vitamin Ce0
Direction
increasede0
Value
5.76%-6.82%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore,nitrogen increased soluble sugar,soluble protein and vitamin C by 13.51%-23.23%,7.31%-15.64% and 5.76%-6.82%,respectively.”

✓ located verbatim in the source · abstract, characters 351–485 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur fertilization increased onion bulb diameter by 0.33 cm.

Taxon
onionAllium cepat0
Treatment
Sulfur fertilizere0
Outcome
sphere diametere0
Direction
increasede0
Value
0.33cme0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sulfur fertilizer increased sphere diameter of onion at 0.33cm,and increased soluble sugar,soluble protein and vitamin C by 10.42%,8.63% and 8.25%,respectively.”

✓ located verbatim in the source · abstract, characters 485–645 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur fertilization increased onion soluble sugar by 10.42%.

Taxon
onionAllium cepat0
Treatment
Sulfur fertilizere0
Outcome
soluble sugare0
Direction
increasede0
Value
10.42%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sulfur fertilizer increased sphere diameter of onion at 0.33cm,and increased soluble sugar,soluble protein and vitamin C by 10.42%,8.63% and 8.25%,respectively.”

✓ located verbatim in the source · abstract, characters 485–645 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur fertilization increased onion soluble protein by 8.63%.

Taxon
onionAllium cepat0
Treatment
Sulfur fertilizere0
Outcome
soluble proteine0
Direction
increasede0
Value
8.63%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sulfur fertilizer increased sphere diameter of onion at 0.33cm,and increased soluble sugar,soluble protein and vitamin C by 10.42%,8.63% and 8.25%,respectively.”

✓ located verbatim in the source · abstract, characters 485–645 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur fertilization increased onion vitamin C by 8.25%.

Taxon
onionAllium cepat0
Treatment
Sulfur fertilizere0
Outcome
vitamin Ce0
Direction
increasede0
Value
8.25%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sulfur fertilizer increased sphere diameter of onion at 0.33cm,and increased soluble sugar,soluble protein and vitamin C by 10.42%,8.63% and 8.25%,respectively.”

✓ located verbatim in the source · abstract, characters 485–645 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen and sulfur effects on onion yield were independent.

Taxon
onionAllium cepat0
Treatment
nitrogen and sulfure0
Outcome
yielde0
Direction
independente0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of nitrogen and sulfur on yield and sphere diameter of onion was independent.”

✓ located verbatim in the source · abstract, characters 655–743 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen and sulfur effects on onion bulb diameter were independent.

Taxon
onionAllium cepat0
Treatment
nitrogen and sulfure0
Outcome
sphere diametere0
Direction
independente0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of nitrogen and sulfur on yield and sphere diameter of onion was independent.”

✓ located verbatim in the source · abstract, characters 655–743 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑
Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Excessive nitrogen and sulfur increased nitrate accumulation in onion.

Taxon
onionAllium cepat0
Treatment
Excessive application of nitrogen and sulfur fertilizere0
Outcome
nitrate accumulatione0
Direction
increasee0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Excessive application of nitrogen and sulfur fertilizer would increase nitrate accumulation in onion.”

✓ located verbatim in the source · abstract, characters 743–844 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 65–70 · show in text ↑

sulfur atom · physiology: osmolytes · Allium cepa (onion)Results differ

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

sulfur atom · nutrient: content · Allium cepa (onion)Positive and negative results

16 papers: 14 positive, 2 negative or no effect

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

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

sulfur atom · growth · Allium cepa (onion)Positive and negative results

28 papers: 24 positive, 4 negative or no effect

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

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

24 papers more in this group

See all 28 papers →

sulfur atom · quality: phytochemicals · Allium cepa (onion)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 · physiology: osmolytes · Allium cepa (onion)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. negative
  2. positive
See all 3 papers →

fertilization · quality: phytochemicals · Allium cepa (onion)Positive and negative results

28 papers: 27 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

24 papers more in this group

See all 28 papers →

nitrogen · nutrient: content · Allium cepa (onion)Positive and negative results

30 papers: 27 positive, 3 negative or no effect

2 papers in the same direction as this paper · 27 in the opposite direction

  1. positive
  2. positive
  3. positive

26 papers more in this group

See all 30 papers →

fertilization · nutrient: content · Allium cepa (onion)Positive and negative results

90 papers: 81 positive, 9 negative or no effect

8 papers in the same direction as this paper · 81 in the opposite direction

  1. positive
  2. positive
  3. positive

86 papers more in this group

See all 90 papers →

8 of 11 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.