Paper · 2009

Effect of Agronomic Practices on Grain Yield and Phytic Acid Content of Early Rice Variety Jiayue 253 Under Direct Sown Cultivation

Jinhong Chen

8
claims
16
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Effects of the different sowing date,nitrogen level,sowing rate on grain yield,yield components and phytic acid content were studied in the field experiment with early rice variety Jiayu253.The yield,yield component factors,and the content of phytic acid in paddy rice,brown rice,and milled rice were measured.The main results were shown as follows: in term of single factor,the yield of rice reached the highest when the sowing date was on April 15,and the yield treated with 13kg / 667m2 N or 6kg / 667m2 sowing rate was significantly higher than those of other treatments,respectively;considering all factors,the yield of rice reached the highest under the treatment of sowing date on April 8,application of 13kg / 667m2 N,and 6kg / 667m2 seeds;phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels,showing a downward tendency with delaying sowing date or increasing nitrogen.However,there was no significant difference among sowing rates;on the contrary,the phytic acid content in milled rice was obviously insensitive to the sowing date,the nitrogen level,and the sowing rate.Thus,the results indicated that agronomic measures had little effects on the phytic acid content in milled rice,and wouldn’t affect the mineral availability.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rice yield was highest for the April 15 sowing date in the single factor comparison.

Treatment
sowing date was on April 15e0
Outcome
yield of ricee0
Direction
higheste0

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

“in term of single factor,the yield of rice reached the highest when the sowing date was on April 15”

✓ located verbatim in the source · abstract, characters 350–449 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rice yield with 13kg / 667m2 N was significantly higher than other treatments.

Treatment
13kg / 667m2 Ne0
Outcome
yielde0
Direction
highere0
Comparator
other treatmentse0

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 treated with 13kg / 667m2 N or 6kg / 667m2 sowing rate was significantly higher than those of other treatments,respectively”

✓ located verbatim in the source · abstract, characters 454–587 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 78–82 · show in text ↑
e1

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels”

✓ located verbatim in the source · abstract, characters 748–851 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rice yield with 6kg / 667m2 sowing rate was significantly higher than other treatments.

Treatment
6kg / 667m2 sowing ratee0
Outcome
yielde0
Direction
highere0
Comparator
other treatmentse0

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 treated with 13kg / 667m2 N or 6kg / 667m2 sowing rate was significantly higher than those of other treatments,respectively”

✓ located verbatim in the source · abstract, characters 454–587 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 78–82 · show in text ↑
e1

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels”

✓ located verbatim in the source · abstract, characters 748–851 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined April 8 sowing, 13kg / 667m2 N and 6kg / 667m2 seed treatment gave the highest rice yield.

Treatment
sowing date on April 8,application of 13kg / 667m2 N,and 6kg / 667m2 seedse0
Outcome
yield of ricee0
Direction
higheste0

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 of rice reached the highest under the treatment of sowing date on April 8,application of 13kg / 667m2 N,and 6kg / 667m2 seeds”

✓ located verbatim in the source · abstract, characters 612–747 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Brown rice phytic acid declined with later sowing.

Organ / stage
brown ricee0
Treatment
delaying sowing datee0
Outcome
phytic acid contents in brown ricee0
Direction
downward tendencye0

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

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels,showing a downward tendency with delaying sowing date or increasing nitrogen”

✓ located verbatim in the source · abstract, characters 748–928 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Brown rice phytic acid declined with increasing nitrogen.

Organ / stage
brown ricee0
Treatment
increasing nitrogene0
Outcome
phytic acid contents in brown ricee0
Direction
downward tendencye0

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

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels,showing a downward tendency with delaying sowing date or increasing nitrogen”

✓ located verbatim in the source · abstract, characters 748–928 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Brown rice phytic acid did not differ significantly among sowing rates.

Treatment
sowing ratese0
Outcome
phytic acid contente1
Direction
no significant differencee0
Comparator
sowing ratese0

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

“However,there was no significant difference among sowing rates”

✓ located verbatim in the source · abstract, characters 929–991 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 78–82 · show in text ↑
e1

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels”

✓ located verbatim in the source · abstract, characters 748–851 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Milled rice phytic acid was insensitive to sowing date, nitrogen level and sowing rate.

Treatment
sowing date,the nitrogen level,and the sowing ratee0
Outcome
phytic acid content in milled ricee0
Direction
insensitivee0

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 phytic acid content in milled rice was obviously insensitive to the sowing date,the nitrogen level,and the sowing rate”

✓ located verbatim in the source · abstract, characters 1008–1130 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 78–82 · show in text ↑
e1

“phytic acid contents in brown rice were quite different among different sowing dates or nitrogen levels”

✓ located verbatim in the source · abstract, characters 748–851 · show in text ↑

sowing time · molecular: metabolites · Oryza sativa (rice)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

4 in the opposite direction

  1. positive
  2. positive
  3. positive

1 paper more in this group

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density · molecular: metabolites · Oryza sativa (rice)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

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nitrogen · molecular: metabolites · Oryza sativa (rice)Positive and negative results

121 papers: 86 positive, 35 negative or no effect

34 papers in the same direction as this paper · 86 in the opposite direction

  1. positive
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sowing time · yield · Oryza sativa (rice)Positive and negative results

193 papers: 123 positive, 70 negative or no effect

122 papers in the same direction as this paper · 68 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

189 papers more in this group

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

395 papers: 330 positive, 65 negative or no effect

329 papers in the same direction as this paper · 58 in the opposite direction · 7 reporting no difference from an alternative

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

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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.