Paper · 2003 · Zhongguo nongye Kexue

Effects of N-Application Rate on Yield, Quality and Characters of Nitrogen Uptake of Hybrid Rice Variety Liangyoupeijiu

Ke Xu

16
claims
32
verbatim quotes
16
citations
2
research areas
—
Not open access

Abstract

Effects of different application rates of nitrogen on hybrid rice Liangyoupeijiu was studied, in comparison with Shanyou 63 under field conditions. The results show that the amount of N-uptake, the biomass accumulation and the N-requirement per 100 kg grain increased with the N-application rate. The yield and N-recovery increased with N-application rate at first, amounted to highest level at moderate N level, then decreased dramatically at high N level. The yield, amount of N-uptake, biomass accumulation and N-recovery of the variety Liangyoupeijiu are higher than those of Shanyou 63 at the same N level. The N-requirement per 100 kg grain is about 2.0-2.2 kg and the N-recovery is around 40% at the yield level from 9 000 to 10 500 kg·ha -1. The nutrition quality, milling quality, steaming and taste quality become better with the N-application rate, while the apparent features become worse. The difference in yield and quality between the varieties is significant. Comparing to the variety Shanyou 63, the yield of the variety Liangyoupeijiu is higher and the quality is better.

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Claims 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

amount of N-uptake increased with N application rate.

Material
Liangyoupeijiut0
Treatment
N-application ratee0
Outcome
amount of N-uptakee0
Direction
increasede0

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

“The results show that the amount of N-uptake, the biomass accumulation and the N-requirement per 100 kg grain increased with the N-application rate.”

✓ located verbatim in the source · abstract, characters 148–296 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

biomass accumulation increased with N application rate.

Material
Liangyoupeijiut0
Treatment
N-application ratee0
Outcome
biomass accumulatione0
Direction
increasede0

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

“The results show that the amount of N-uptake, the biomass accumulation and the N-requirement per 100 kg grain increased with the N-application rate.”

✓ located verbatim in the source · abstract, characters 148–296 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N-requirement per 100 kg grain increased with N application rate.

Material
Liangyoupeijiut0
Treatment
N-application ratee0
Outcome
N-requirement per 100 kg graine0
Direction
increasede0

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

“The results show that the amount of N-uptake, the biomass accumulation and the N-requirement per 100 kg grain increased with the N-application rate.”

✓ located verbatim in the source · abstract, characters 148–296 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

yield peaked at moderate N and decreased at high N.

Material
Liangyoupeijiut0
Treatment
N-application ratee0
Outcome
yielde0
Direction
increasede0
Qualifier
then decreased dramatically at high N levele0

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

“The yield and N-recovery increased with N-application rate at first, amounted to highest level at moderate N level, then decreased dramatically at high N level.”

✓ located verbatim in the source · abstract, characters 297–457 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

N-recovery peaked at moderate N and decreased at high N.

Material
Liangyoupeijiut0
Treatment
N-application ratee0
Outcome
N-recoverye0
Direction
increasede0
Qualifier
then decreased dramatically at high N levele0

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

“The yield and N-recovery increased with N-application rate at first, amounted to highest level at moderate N level, then decreased dramatically at high N level.”

✓ located verbatim in the source · abstract, characters 297–457 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Liangyoupeijiu had higher yield than Shanyou 63 at the same N level.

Material
Liangyoupeijiue0
Outcome
yielde0
Direction
highere0
Qualifier
at the same N levele0
Comparator
Shanyou 63e0

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

“The yield, amount of N-uptake, biomass accumulation and N-recovery of the variety Liangyoupeijiu are higher than those of Shanyou 63 at the same N level.”

✓ located verbatim in the source · abstract, characters 458–611 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Liangyoupeijiu had higher amount of N-uptake than Shanyou 63 at the same N level.

Material
Liangyoupeijiue0
Outcome
amount of N-uptakee0
Direction
highere0
Qualifier
at the same N levele0
Comparator
Shanyou 63e0

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

“The yield, amount of N-uptake, biomass accumulation and N-recovery of the variety Liangyoupeijiu are higher than those of Shanyou 63 at the same N level.”

✓ located verbatim in the source · abstract, characters 458–611 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Liangyoupeijiu had higher biomass accumulation than Shanyou 63 at the same N level.

Material
Liangyoupeijiue0
Outcome
biomass accumulatione0
Direction
highere0
Qualifier
at the same N levele0
Comparator
Shanyou 63e0

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

“The yield, amount of N-uptake, biomass accumulation and N-recovery of the variety Liangyoupeijiu are higher than those of Shanyou 63 at the same N level.”

✓ located verbatim in the source · abstract, characters 458–611 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Liangyoupeijiu had higher N-recovery than Shanyou 63 at the same N level.

Material
Liangyoupeijiue0
Outcome
N-recoverye0
Direction
highere0
Qualifier
at the same N levele0
Comparator
Shanyou 63e0

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

“The yield, amount of N-uptake, biomass accumulation and N-recovery of the variety Liangyoupeijiu are higher than those of Shanyou 63 at the same N level.”

✓ located verbatim in the source · abstract, characters 458–611 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

N-requirement per 100 kg grain was 2.0-2.2 kg at the reported yield level.

Outcome
N-requirement per 100 kg graine0
Value
2.0-2.2 kge0
Qualifier
yield level from 9 000 to 10 500 kg·ha -1e0

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

“The N-requirement per 100 kg grain is about 2.0-2.2 kg and the N-recovery is around 40% at the yield level from 9 000 to 10 500 kg·ha -1.”

✓ located verbatim in the source · abstract, characters 612–749 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

N-recovery was 40% at the reported yield level.

Outcome
N-recoverye0
Value
40%e0
Qualifier
yield level from 9 000 to 10 500 kg·ha -1e0

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

“The N-requirement per 100 kg grain is about 2.0-2.2 kg and the N-recovery is around 40% at the yield level from 9 000 to 10 500 kg·ha -1.”

✓ located verbatim in the source · abstract, characters 612–749 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

nutrition quality became better with N rate.

Treatment
N-application ratee0
Outcome
nutrition qualitye0
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

“The nutrition quality, milling quality, steaming and taste quality become better with the N-application rate, while the apparent features become worse.”

✓ located verbatim in the source · abstract, characters 750–901 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

milling quality became better with N rate.

Treatment
N-application ratee0
Outcome
milling qualitye0
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

“The nutrition quality, milling quality, steaming and taste quality become better with the N-application rate, while the apparent features become worse.”

✓ located verbatim in the source · abstract, characters 750–901 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

steaming and taste quality became better with N rate.

Treatment
N-application ratee0
Outcome
steaming and taste qualitye0
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

“The nutrition quality, milling quality, steaming and taste quality become better with the N-application rate, while the apparent features become worse.”

✓ located verbatim in the source · abstract, characters 750–901 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

apparent features became worse with N rate.

Treatment
N-application ratee0
Outcome
apparent featurese0
Direction
worsee0

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

“The nutrition quality, milling quality, steaming and taste quality become better with the N-application rate, while the apparent features become worse.”

✓ located verbatim in the source · abstract, characters 750–901 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Liangyoupeijiu had higher yield and better quality than Shanyou 63.

Material
Liangyoupeijiue0
Outcome
yielde0
Direction
highere0
Qualifier
quality is bettere0
Comparator
Shanyou 63e0

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

“Comparing to the variety Shanyou 63, the yield of the variety Liangyoupeijiu is higher and the quality is better.”

✓ located verbatim in the source · abstract, characters 976–1089 · show in text ↑
t0

“Hybrid Rice Variety Liangyoupeijiu”

✓ located verbatim in the source · title, characters 85–119 · show in text ↑

nitrogen · quality: grain · Oryza sativa (rice)Results differ

102 papers: 81 positive, 21 negative or no effect

80 papers in the same direction as this paper · 19 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

98 papers more in this group

See all 102 papers →

nitrogen · quality: general · Oryza sativa (rice)Positive and negative results

61 papers: 46 positive, 15 negative or no effect

45 papers in the same direction as this paper · 15 in the opposite direction

  1. positive
  2. negative
  3. negative

57 papers more in this group

See all 61 papers →

nitrogen · nutrient: content · Oryza sativa (rice)Positive and negative results

464 papers: 409 positive, 55 negative or no effect

408 papers in the same direction as this paper · 52 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

460 papers more in this group

See all 464 papers →

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

511 papers: 402 positive, 109 negative or no effect

401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

507 papers more in this group

See all 511 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.