Paper · 2015 · Communications in Soil Science and Plant Analysis

Long-Term Effect of Lime, Mycorrhiza, and Inorganic and Organic Sources on Soil Fertility, Yield, and Proximate Composition of Sweet Potato in Alfisols of Eastern India

K. Laxminarayana; K. Susan John; A. Mukherjee; et al.

10
claims
17
verbatim quotes
7
citations
3
research areas
—
Not open access

Abstract

A field experiment was conducted for five kharif seasons (2006–2011) in an Alfisol to study the effect of integrated use of lime, mycorrhiza, and inorganic and organics on soil fertility, yield, and proximate composition of sweet potato. Application of graded doses of nitrogen, phosphorus, and potassium (NPK) significantly increased the mean tuber yield of sweet potato by 44, 106, and 130 percent over control. Green manuring along with ½ NPK showed greater yield response over that of ½ NPK. The greatest mean tuber yield was recorded due to integrated application of lime, farmyard manure (FYM), NPK, and MgSO4 (13.69 t ha−1) over the other treatments. Inoculation of mycorrhiza combined with lime, FYM, and NPK showed a significant yield response of 10 percent over FYM + NPK. Conjunctive use of lime, inorganics, and organics not only produces sustainable crop yields but also improve soil fertility, nutrient-use efficiency, and apparent nutrient recovery in comparison to NPK and organic manures.

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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 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Graded NPK increased mean tuber yield by 44 percent over control.

Taxon
sweet potatoIpomoea batatase0
Treatment
graded doses of nitrogen, phosphorus, and potassium (NPK)e0
Outcome
mean tuber yielde0
Direction
increasede0
Value
44e0
Comparator
controle0

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

“Application of graded doses of nitrogen, phosphorus, and potassium (NPK) significantly increased the mean tuber yield of sweet potato by 44, 106, and 130 percent over control.”

✓ located verbatim in the source · abstract, characters 238–413 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Graded NPK increased mean tuber yield by 106 percent over control.

Taxon
sweet potatoIpomoea batatase0
Treatment
graded doses of nitrogen, phosphorus, and potassium (NPK)e0
Outcome
mean tuber yielde0
Direction
increasede0
Value
106e0
Comparator
controle0

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

“Application of graded doses of nitrogen, phosphorus, and potassium (NPK) significantly increased the mean tuber yield of sweet potato by 44, 106, and 130 percent over control.”

✓ located verbatim in the source · abstract, characters 238–413 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Graded NPK increased mean tuber yield by 130 percent over control.

Taxon
sweet potatoIpomoea batatase0
Treatment
graded doses of nitrogen, phosphorus, and potassium (NPK)e0
Outcome
mean tuber yielde0
Direction
increasede0
Value
130 percente0
Comparator
controle0

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

“Application of graded doses of nitrogen, phosphorus, and potassium (NPK) significantly increased the mean tuber yield of sweet potato by 44, 106, and 130 percent over control.”

✓ located verbatim in the source · abstract, characters 238–413 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Green manure with half NPK gave greater yield response than half NPK alone.

Taxon
sweet potatoIpomoea batatast0
Treatment
Green manuring along with ½ NPKe0
Outcome
yield responsee0
Direction
greatere0
Comparator
½ NPKe0

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

“Green manuring along with ½ NPK showed greater yield response over that of ½ NPK.”

✓ located verbatim in the source · abstract, characters 414–495 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lime, FYM, NPK and MgSO4 produced the greatest mean tuber yield at 13.69 t ha−1.

Taxon
sweet potatoIpomoea batatast0
Treatment
integrated application of lime, farmyard manure (FYM), NPK, and MgSO4e0
Outcome
mean tuber yielde0
Direction
greateste0
Value
13.69 t ha−1e0
Comparator
the other treatmentse0

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 greatest mean tuber yield was recorded due to integrated application of lime, farmyard manure (FYM), NPK, and MgSO4 (13.69 t ha−1) over the other treatments.”

✓ located verbatim in the source · abstract, characters 496–657 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mycorrhiza with lime, FYM and NPK increased yield by 10 percent over FYM and NPK.

Taxon
sweet potatoIpomoea batatast0
Treatment
Inoculation of mycorrhiza combined with lime, FYM, and NPKe0
Interactor
mycorrhizae0symbiont
Outcome
yield responsee0
Value
10 percente0
Comparator
FYM + NPKe0

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

“Inoculation of mycorrhiza combined with lime, FYM, and NPK showed a significant yield response of 10 percent over FYM + NPK.”

✓ located verbatim in the source · abstract, characters 658–782 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Combined lime, inorganic and organic amendments were reported to sustain crop yields relative to NPK and organic manures.

Taxon
sweet potatoIpomoea batatast0
Treatment
Conjunctive use of lime, inorganics, and organicse0
Outcome
sustainable crop yieldse0
Comparator
NPK and organic manurese0

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

“Conjunctive use of lime, inorganics, and organics not only produces sustainable crop yields but also improve soil fertility, nutrient-use efficiency, and apparent nutrient recovery in comparison to NPK and organic manures.”

✓ located verbatim in the source · abstract, characters 783–1005 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined amendments improved soil fertility relative to NPK and organic manures.

Taxon
sweet potatoIpomoea batatast0
Treatment
Conjunctive use of lime, inorganics, and organicse0
Outcome
soil fertilitye0
Direction
improvee0
Comparator
NPK and organic manurese0

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

“Conjunctive use of lime, inorganics, and organics not only produces sustainable crop yields but also improve soil fertility, nutrient-use efficiency, and apparent nutrient recovery in comparison to NPK and organic manures.”

✓ located verbatim in the source · abstract, characters 783–1005 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined amendments improved nutrient-use efficiency relative to NPK and organic manures.

Taxon
sweet potatoIpomoea batatast0
Treatment
Conjunctive use of lime, inorganics, and organicse0
Outcome
nutrient-use efficiencye0
Direction
improvee0
Comparator
NPK and organic manurese0

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

“Conjunctive use of lime, inorganics, and organics not only produces sustainable crop yields but also improve soil fertility, nutrient-use efficiency, and apparent nutrient recovery in comparison to NPK and organic manures.”

✓ located verbatim in the source · abstract, characters 783–1005 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined amendments improved apparent nutrient recovery relative to NPK and organic manures.

Taxon
sweet potatoIpomoea batatast0
Treatment
Conjunctive use of lime, inorganics, and organicse0
Outcome
apparent nutrient recoverye0
Direction
improvee0
Comparator
NPK and organic manurese0

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

“Conjunctive use of lime, inorganics, and organics not only produces sustainable crop yields but also improve soil fertility, nutrient-use efficiency, and apparent nutrient recovery in comparison to NPK and organic manures.”

✓ located verbatim in the source · abstract, characters 783–1005 · show in text ↑
t0

“Sweet Potato”

✓ located verbatim in the source · title, characters 127–139 · show in text ↑

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

35 papers: 32 positive, 3 negative or no effect

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

  1. positive
  2. negative
  3. no effect

31 papers more in this group

See all 35 papers →

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 →

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

22 papers: 18 positive, 4 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

18 papers more in this group

See all 22 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 →

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

145 papers: 126 positive, 19 negative or no effect

125 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

141 papers more in this group

See all 145 papers →

lime · soil: chemistry · Ipomoea batatas (sweet potato)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

lime · yield · Ipomoea batatas (sweet potato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

lime · nutrient: content · Ipomoea batatas (sweet potato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.