Paper · 2008

Effect of different nitrogen fertilization level on rice growth and yield under no-tillage and scattered-planting farming

Jiang Jian-bo

7
claims
7
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Based on the characteristic of nitrogen fertilization and crop N uptake in no-tillage and scattered planting farming of rice,contrast experiments of early and late rice under different N levels were conducted to investigate the optimal N level in Jinzhu town of Cenxi county in 2007.Results showed that when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains,higher setting rate and higher yield,which was the optimum nitrogen application.

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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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice plants had better growth.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
growthe0
Direction
bettere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth”

✓ located verbatim in the source · abstract, characters 303–365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice had slighter incidence of diseases and insect pests.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
incidence of diseases and insect pestse0
Direction
slightere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests”

✓ located verbatim in the source · abstract, characters 303–413 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice had fewer invalid tillers.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
invalid tillerse0
Direction
lowere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers”

✓ located verbatim in the source · abstract, characters 303–435 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice had more setting grains.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
setting grainse0
Direction
highere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains”

✓ located verbatim in the source · abstract, characters 303–457 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice had a higher setting rate.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
setting ratee0
Direction
highere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains,higher setting rate”

✓ located verbatim in the source · abstract, characters 303–477 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 150.0 kg N/hm2, rice had a higher yield.

Taxon
rice plantsOryza sativae0
Treatment
150.0 kg N/hm2e0
Outcome
yielde0
Direction
highere0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains,higher setting rate and higher yield”

✓ located verbatim in the source · abstract, characters 303–494 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors identified 150.0 kg N/hm2 as the optimum nitrogen application.

Taxon
rice plantsOryza sativae0
Outcome
optimum nitrogen applicatione0
Value
150.0 kg N/hm2e0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains,higher setting rate and higher yield,which was the optimum nitrogen application”

✓ located verbatim in the source · abstract, characters 321–537 · show in text ↑

nitrogen · disease · Oryza sativa (rice)Positive and negative results

82 papers: 39 positive, 43 negative or no effect

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nitrogen · growth · Oryza sativa (rice)Positive and negative results

511 papers: 402 positive, 109 negative or no effect

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nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

2,041 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.