Paper · 2009 · Indian Journal of Science and Technology

Nitrate accumulation, growth and leaf quality of spinach beet (Beta vulgaris Linn.) as affected by NPK fertilization with special reference to potassium

Sumeet Gairola

15
claims
43
verbatim quotes
16
citations
2
research areas
✓
Open access · cc-by

Abstract

The present study was carried out at the Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.) to understand the effect of potassium with other fertilizers on nitrate accumulation, growth and quality of the leaves. Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content. Effect of 2:1 ratio of N and K was found statistically at par with 1:1 ratio of N and K. Fertilizer treatments without potassium had lower level of NRA and higher nitrate content in the leaves as compared to other applications. Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content. As higher NRA and lower nitrate content was recorded in treatments with potassium, application of K is desirable to reduce health hazards related with nitrate toxicity. Based on the results of the study, application of 1:1 ratio of N and K fertilizer and FYM is recommended. Keywords: Spinach beet, potassium, nitrate toxicity, nitrate reductase, manure; fertilizers, NPK.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 15

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium with other fertilizers increased leaf area.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Potassium application along with other fertilizerse0
Outcome
leaf areae0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content”

✓ located verbatim in the source · abstract, characters 264–456 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium with other fertilizers increased per cent dry weight.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Potassium application along with other fertilizerse0
Outcome
per cent dry weighte0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content”

✓ located verbatim in the source · abstract, characters 264–456 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium with other fertilizers increased Chlorophyll Content Index (CCI).

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Potassium application along with other fertilizerse0
Outcome
Chlorophyll Content Index (CCI)e0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content”

✓ located verbatim in the source · abstract, characters 264–456 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium with other fertilizers increased Nitrate Reductase Activity (NRA).

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Potassium application along with other fertilizerse0
Outcome
Nitrate Reductase Activity (NRA)e0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content”

✓ located verbatim in the source · abstract, characters 264–456 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium with other fertilizers decreased nitrate content.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Potassium application along with other fertilizerse0
Outcome
nitrate contente0
Direction
decreasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Potassium application along with other fertilizers increased leaf area, per cent dry weight, Chlorophyll Content Index (CCI) and Nitrate Reductase Activity (NRA), but decreased nitrate content”

✓ located verbatim in the source · abstract, characters 264–456 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

The 2:1 N to K ratio was statistically at par with the 1:1 ratio.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
2:1 ratio of N and Ke0
Outcome
Effecte0
Direction
at pare0
Comparator
1:1 ratio of N and Ke0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Effect of 2:1 ratio of N and K was found statistically at par with 1:1 ratio of N and K”

✓ located verbatim in the source · abstract, characters 458–545 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Treatments without potassium had lower NRA than other applications.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Fertilizer treatments without potassiume0
Outcome
NRAe0
Direction
lowere0
Comparator
other applicationse0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Fertilizer treatments without potassium had lower level of NRA and higher nitrate content in the leaves as compared to other applications”

✓ located verbatim in the source · abstract, characters 547–684 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Treatments without potassium had higher leaf nitrate content than other applications.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Fertilizer treatments without potassiume0
Outcome
nitrate content in the leavese0
Direction
highere0
Comparator
other applicationse0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Fertilizer treatments without potassium had lower level of NRA and higher nitrate content in the leaves as compared to other applications”

✓ located verbatim in the source · abstract, characters 547–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

FYM with NPK fertilizers increased leaf area.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Application of FYM along with NPK fertilizerse0
Outcome
leaf areae0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content”

✓ located verbatim in the source · abstract, characters 686–823 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

FYM with NPK fertilizers increased per cent dry weight.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Application of FYM along with NPK fertilizerse0
Outcome
per cent dry weighte0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content”

✓ located verbatim in the source · abstract, characters 686–823 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

FYM with NPK fertilizers increased CCI.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Application of FYM along with NPK fertilizerse0
Outcome
CCIe0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content”

✓ located verbatim in the source · abstract, characters 686–823 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

FYM with NPK fertilizers increased NRA.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Application of FYM along with NPK fertilizerse0
Outcome
NRAe0
Direction
increasede0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content”

✓ located verbatim in the source · abstract, characters 686–823 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

FYM with NPK fertilizers decreased nitrate content.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Material
Pusa Bhartie1
Treatment
Application of FYM along with NPK fertilizerse0
Outcome
nitrate contente0
Direction
decreasese0
Setting
Herbal Garden of Jamia Hamdard, New Delhie1

Not reportedComparator

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e1

“Herbal Garden of Jamia Hamdard, New Delhi on Pusa Bharti variety of Spinach Beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · abstract, characters 41–143 · show in text ↑
e0

“Application of FYM along with NPK fertilizers increased leaf area, per cent dry weight, CCI and NRA, whereas it decreases nitrate content”

✓ located verbatim in the source · abstract, characters 686–823 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend K application to reduce hazards related to nitrate toxicity.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Treatment
application of Ke0
Outcome
reduce health hazards related with nitrate toxicitye0

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e0

“application of K is desirable to reduce health hazards related with nitrate toxicity”

✓ located verbatim in the source · abstract, characters 908–992 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend a 1:1 N to K fertilizer ratio with FYM.

Taxon
spinach beet (Beta vulgaris Linn.)Beta vulgarist0
Outcome
application of 1:1 ratio of N and K fertilizer and FYMe0

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

Beta vulgaris
Beta vulgaris · TaxonMichael Bakker Paiva · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“spinach beet (Beta vulgaris Linn.)”

✓ located verbatim in the source · title, characters 49–83 · show in text ↑
e0

“application of 1:1 ratio of N and K fertilizer and FYM is recommended”

✓ located verbatim in the source · abstract, characters 1029–1098 · show in text ↑

fertilization · physiology: enzyme activity · Beta vulgaris (beet)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
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potassium · nutrient: content · Beta vulgaris (beet)Positive and negative results

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fertilization · physiology: pigments · Beta vulgaris (beet)Positive and negative results

17 papers: 16 positive, 1 negative or no effect

15 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
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potassium · growth · Beta vulgaris (beet)Positive and negative results

40 papers: 36 positive, 4 negative or no effect

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fertilization · nutrient: content · Beta vulgaris (beet)Positive and negative results

59 papers: 46 positive, 13 negative or no effect

45 papers in the same direction as this paper · 13 in the opposite direction

  1. negative
  2. no effect
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fertilization · growth · Beta vulgaris (beet)Positive and negative results

109 papers: 97 positive, 12 negative or no effect

96 papers in the same direction as this paper · 12 in the opposite direction

  1. negative
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potassium · physiology: pigments · Beta vulgaris (beet)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  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.