Paper · 2012 · African Journal of Microbiology Research

Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)

Mona Mona; Ebtesam Ibrahim; Manal; et al.

11
claims
23
verbatim quotes
41
citations
2
research areas
✓
Open access

Abstract

Field experiment was conducted to study the effect of NPK levels and foliar nutritional compounds on growth yield, chemical constituents and nutrients content of potato plants grown in newly reclaimed soil. The obtained results could be summarized as follows: Increasing the NPK levels significantly increased all the growth, and yield parameters (except for number of aerial stem, plant), photosynthetic pigments, chemical constituents of potato tuber at harvest, and macro and micronutrients in potato shoots and tubers. The highest values of the mentioned parameters were obtained by using the highest NPK (120:80:100) as compared with the other two NPK levels (Medium: 102:68:85 and low: 90: 60: 75). Foliar application with folifertile, Byfolane and fetrilon combi significantly increased growth and yield parameters, photosynthetic pigments, chemical constituents and nutrients content of shoots and tubers as compared with the control treatment. The highest effective treatment in this respect was folifertile followed by Byfolane and fetrilon combi in decreasing order. The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers. The interaction did not significantly affect the other studied parameters. Key words: Foliar compounds, nutrients content, potato NPK chemical constituents, interactions.

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Claims 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing the NPK levels significantly increased potato growth and yield parameters.

Taxon
potato plantsSolanum tuberosumt0
Treatment
Increasing the NPK levelse1
Outcome
growth, and yield parameterse1
Direction
significantly increasede1

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e1

“Increasing the NPK levels significantly increased all the growth, and yield parameters”

✓ located verbatim in the source · abstract, characters 260–346 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest NPK rate (120:80:100) gave the highest values of the measured potato parameters compared with the other two NPK levels.

Taxon
potato plantsSolanum tuberosumt0
Treatment
highest NPK (120:80:100)e2
Outcome
mentioned parameterse2
Direction
highest valuese2
Comparator
other two NPK levelse2

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e2

“The highest values of the mentioned parameters were obtained by using the highest NPK (120:80:100) as compared with the other two NPK levels (Medium: 102:68:85 and low: 90: 60: 75).”

✓ located verbatim in the source · abstract, characters 523–704 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar application with folifertile, Byfolane and fetrilon combi significantly increased potato growth and yield parameters compared with the control.

Taxon
potato plantsSolanum tuberosumt0
Treatment
Foliar application with folifertile, Byfolane and fetrilon combie3
Outcome
growth and yield parameterse3
Direction
significantly increasede3
Comparator
control treatmente3

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e3

“Foliar application with folifertile, Byfolane and fetrilon combi significantly increased growth and yield parameters, photosynthetic pigments, chemical constituents and nutrients content of shoots and tubers as compared with the control treatment.”

✓ located verbatim in the source · abstract, characters 705–952 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar application with folifertile, Byfolane and fetrilon combi significantly increased potato photosynthetic pigments, chemical constituents and nutrient content.

Taxon
potato plantsSolanum tuberosumt0
Treatment
Foliar application with folifertile, Byfolane and fetrilon combie3
Outcome
photosynthetic pigments, chemical constituents and nutrients contente3
Direction
significantly increasede3
Comparator
control treatmente3

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e3

“Foliar application with folifertile, Byfolane and fetrilon combi significantly increased growth and yield parameters, photosynthetic pigments, chemical constituents and nutrients content of shoots and tubers as compared with the control treatment.”

✓ located verbatim in the source · abstract, characters 705–952 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Folifertile was the most effective foliar treatment, followed by Byfolane and fetrilon combi.

Taxon
potato plantsSolanum tuberosumt0
Treatment
folifertilee4
Outcome
highest effective treatmente4
Direction
highest effectivee4
Comparator
Byfolane and fetrilon combie4

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e4

“The highest effective treatment in this respect was folifertile followed by Byfolane and fetrilon combi in decreasing order.”

✓ located verbatim in the source · abstract, characters 953–1077 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction significantly affected leaf number, chlorophyll b and chlorophyll a+b in potato.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
leaves number (LN)/plant, chl. b and chl. a + be5

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction significantly affected potato tuber yield, mono sugars and carbohydrate.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
tuber yield, mono sugars, carbohydratee5

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction significantly affected potato L-ascorbic acid.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
L-ascorbic acide5

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction significantly affected P, Mn and Cu concentration in potato shoots.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
p, Mn and Cu concentration in shootse5

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction significantly affected N and Fe in potato tubers.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
N and Fe in tuberse5

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The NPK by foliar compound interaction did not significantly affect the other studied potato parameters.

Taxon
potato plantsSolanum tuberosumt0
Treatment
NPK levels and foliar nutritional compoundse5
Outcome
other studied parameterse6

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Combined effect of NPK levels and foliar nutritional compounds on growth and yield parameters of potato plants (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 0–133 · show in text ↑
e5

“The interaction between NPK levels and foliar nutritional compounds significantly affected leaves number (LN)/plant, chl. b and chl. a + b, tuber yield, mono sugars, carbohydrate and L-ascorbic acid as well as p, Mn and Cu concentration in shoots, and N and Fe in tubers.”

✓ located verbatim in the source · abstract, characters 1078–1349 · show in text ↑
e6

“The interaction did not significantly affect the other studied parameters.”

✓ located verbatim in the source · abstract, characters 1350–1424 · show in text ↑

application · physiology: photosynthesis · Solanum tuberosum (potato)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

6 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
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application · yield · Solanum tuberosum (potato)Positive and negative results

191 papers: 177 positive, 14 negative or no effect

176 papers in the same direction as this paper · 14 in the opposite direction

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fertilization · yield · Solanum tuberosum (potato)Positive and negative results

450 papers: 394 positive, 56 negative or no effect

393 papers in the same direction as this paper · 48 in the opposite direction · 8 reporting no difference from an alternative

  1. no effect
  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.