Paper · 2013 · Anhui nongye kexue

Study on Balanced Fertilization of Sweet potato

Ding Fan

6
claims
13
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

[Objective]To study the influence of different fertilizer ratio on sweet potato yield,and provide reference for balanced fertilization of sweet potato.[Method] With Xushu 22 as material,non-fertilizer as control,effects of different fertilizer ratio on the growth of aboveground parts,underground parts and the yield were studied.[Result]The results showed that phosphorus(P) and potassium(K) are key fertilizers for the yield of Xushu 22.And in all processing with P and K,such as N + P + K,P + K and the compound fertilizer,the fresh base yield of Xushu 22 was raised at a certain level.With the treatment of P + K,Xushu 22 had the highest fresh base yield.And the yield increased at a significant level,which was 16.03%.The N + P + K treatment followed by 7.04%,while with the N + P treatment,the aboveground parts had excessive growth.[Conclusion]Under the medium fertility soil conditions,in order to have high sweet potato yield,we should pay attention to the mix of P and K,and fertilize no or less nitrogen.

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

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 6

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Phosphorus and potassium were identified as key fertilizers for Xushu 22 yield.

Taxon
Sweet potatoIpomoea batatast0
Material
Xushu 22e0
Outcome
yielde0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“phosphorus(P) and potassium(K) are key fertilizers for the yield of Xushu 22”

✓ located verbatim in the source · abstract, characters 362–438 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N + P + K raised fresh base yield.

Taxon
Sweet potatoIpomoea batatast0
Material
Xushu 22e0
Treatment
N + P + Ke0
Outcome
fresh base yielde0
Direction
raisede0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“in all processing with P and K,such as N + P + K,P + K and the compound fertilizer,the fresh base yield of Xushu 22 was raised at a certain level”

✓ located verbatim in the source · abstract, characters 443–588 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

P + K produced the highest fresh base yield, a significant 16.03% increase.

Taxon
Sweet potatoIpomoea batatast0
Material
Xushu 22e0
Treatment
P + Ke0
Outcome
fresh base yielde0
Direction
higheste0
Value
16.03%e0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“With the treatment of P + K,Xushu 22 had the highest fresh base yield.And the yield increased at a significant level,which was 16.03%”

✓ located verbatim in the source · abstract, characters 589–722 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The N + P + K treatment increased yield by 7.04%.

Taxon
Sweet potatoIpomoea batatast0
Treatment
N + P + Ke0
Outcome
yielde1
Direction
increaseinferrede0
Value
7.04%e0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“The N + P + K treatment followed by 7.04%”

✓ located verbatim in the source · abstract, characters 723–764 · show in text ↑
e1

“the fresh base yield of Xushu 22 was raised at a certain level”

✓ located verbatim in the source · abstract, characters 526–588 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

N + P caused excessive aboveground growth.

Taxon
Sweet potatoIpomoea batatast0
Treatment
N + P treatmente0
Outcome
aboveground parts had excessive growthe0
Direction
excessive growthe0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“with the N + P treatment,the aboveground parts had excessive growth”

✓ located verbatim in the source · abstract, characters 771–838 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Under medium fertility, authors recommended P and K with no or less nitrogen for high yield.

Taxon
Sweet potatoIpomoea batatast0
Outcome
pay attention to the mix of P and K,and fertilize no or less nitrogene0
Qualifier
medium fertility soil conditionse0

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

t0

“Sweet potato”

✓ located verbatim in the source · title, characters 35–47 · show in text ↑
e0

“Under the medium fertility soil conditions,in order to have high sweet potato yield,we should pay attention to the mix of P and K,and fertilize no or less nitrogen”

✓ located verbatim in the source · abstract, characters 851–1014 · show in text ↑

nitrogen · yield · Ipomoea batatas (sweet potato)Results differ

35 papers: 31 positive, 4 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

31 papers more in this group

See all 35 papers →

phosphorus · growth · Ipomoea batatas (sweet potato)Positive and negative results

9 papers: 3 positive, 6 negative or no effect

5 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

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

23 papers: 19 positive, 4 negative or no effect

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

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

19 papers more in this group

See all 23 papers →

nitrogen · growth · Ipomoea batatas (sweet potato)Positive and negative results

28 papers: 19 positive, 9 negative or no effect

8 papers in the same direction as this paper · 19 in the opposite direction

  1. positive
  2. positive
  3. positive

24 papers more in this group

See all 28 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.