Paper · 2011

Effects of Long-term Non P Fertilizer Application on Yield and Quality in Sweetpotato

Fei Xu

10
claims
21
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

The effects of long-term non-P fertilizer on yield and quality in sweetpotato were studied in long-term stationary field experiment,which was established in 1980 in yellow fluvo-aquic soil.The results showed that long-term non P fertilizer treatment would delay the swelling period of sweetpotato storage root and reduce daily output,so as to caused the drop of fresh root yield(P0.05).Compared with application of P fertilizer,the dry matter and starch and protein content of sweetpotato storage root had no obvious decrease(P0.05).The content of soluble sugar and reducing sugar ware markly improued by long-term non-P treatment(P0.05),and the viscosity of sweetpotato starch had evident drop.There were differences in yield response of different sweetpotato varieties under the long-term non-P fertilizer,and Xushu18 with high endurance of low-P stress and Xushu27 with high P efficiency,and Suyu303 with K sensitive were selected preliminary,it provides useful materials for breeding and production of sweetpotato.

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 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Long-term non-P fertilizer delayed sweetpotato storage root swelling.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non P fertilizer treatmente0
Outcome
swelling period of sweetpotato storage roote0
Direction
delaye0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“long-term non P fertilizer treatment would delay the swelling period of sweetpotato storage root”

✓ located verbatim in the source · abstract, characters 213–309 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Long-term non-P fertilizer reduced sweetpotato daily output.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non P fertilizer treatmente0
Outcome
daily outpute0
Direction
reducee0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“long-term non P fertilizer treatment would delay the swelling period of sweetpotato storage root and reduce daily output”

✓ located verbatim in the source · abstract, characters 213–333 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Long-term non-P fertilizer reduced fresh root yield.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non P fertilizer treatmente0
Outcome
fresh root yielde0
Direction
drope0
Qualifier
P0.05e0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“long-term non P fertilizer treatment would delay the swelling period of sweetpotato storage root and reduce daily output,so as to caused the drop of fresh root yield(P0.05).”

✓ located verbatim in the source · abstract, characters 213–386 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Compared with P fertilizer, non-P treatment caused no obvious decrease in storage root dry matter, starch or protein content.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non P fertilizer treatmente1
Outcome
dry matter and starch and protein content of sweetpotato storage roote0
Direction
no obvious decreasee0
Qualifier
P0.05e0
Comparator
application of P fertilizere0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with application of P fertilizer,the dry matter and starch and protein content of sweetpotato storage root had no obvious decrease(P0.05).”

✓ located verbatim in the source · abstract, characters 386–533 · show in text ↑
e1

“long-term non P fertilizer treatment”

✓ located verbatim in the source · abstract, characters 213–249 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Long-term non-P treatment increased soluble sugar and reducing sugar contents.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non-P treatmente0
Outcome
content of soluble sugar and reducing sugare0
Direction
markly improuede0
Qualifier
P0.05e0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The content of soluble sugar and reducing sugar ware markly improued by long-term non-P treatment(P0.05)”

✓ located verbatim in the source · abstract, characters 533–637 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Long-term non-P treatment decreased sweetpotato starch viscosity.

Taxon
SweetpotatoIpomoea batatast0
Treatment
long-term non-P treatmente0
Outcome
viscosity of sweetpotato starche0
Direction
drope0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“long-term non-P treatment(P0.05),and the viscosity of sweetpotato starch had evident drop.”

✓ located verbatim in the source · abstract, characters 605–695 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Sweetpotato varieties differed in yield response to long-term non-P fertilizer.

Taxon
SweetpotatoIpomoea batatast0
Material
different sweetpotato varietiese0
Treatment
long-term non-P fertilizere0
Outcome
yield responsee0

Not reportedDirection

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“There were differences in yield response of different sweetpotato varieties under the long-term non-P fertilizer”

✓ located verbatim in the source · abstract, characters 695–807 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Xushu18 was preliminarily selected for high endurance of low-P stress.

Taxon
SweetpotatoIpomoea batatast0
Material
Xushu18e0
Outcome
high endurance of low-P stresse0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Xushu18 with high endurance of low-P stress”

✓ located verbatim in the source · abstract, characters 812–855 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Xushu27 was preliminarily selected for high P efficiency.

Taxon
SweetpotatoIpomoea batatast0
Material
Xushu27e0
Outcome
high P efficiencye0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Xushu27 with high P efficiency”

✓ located verbatim in the source · abstract, characters 860–890 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Suyu303 was preliminarily selected as K sensitive.

Taxon
SweetpotatoIpomoea batatast0
Material
Suyu303e0
Outcome
K sensitivee0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Suyu303 with K sensitive”

✓ located verbatim in the source · abstract, characters 895–919 · show in text ↑
t0

“Sweetpotato”

✓ located verbatim in the source · title, characters 74–85 · show in text ↑

fertilization · organism · Ipomoea batatas (sweet potato)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

1 paper in the same direction as this paper · 6 in the opposite direction

  1. positive
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fertilization · quality: protein · Ipomoea batatas (sweet potato)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

14 reporting no difference from an alternative

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fertilization · yield · Ipomoea batatas (sweet potato)Positive and negative results

145 papers: 126 positive, 19 negative or no effect

18 papers in the same direction as this paper · 126 in the opposite direction

  1. positive
  2. positive
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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.