Paper · 2002 · Indian Journal of Horticulture

Effect of NPK on yield and fruit quality of sweet orange cv. Jaffa

P. K. Monga; Harish Kumar; V. K. Vij; et al.

7
claims
13
verbatim quotes
3
citations
3
research areas
✓
Open access

Abstract

Tree volume and stocldscion girth increased with the application of N alone @ 300 to 900 g/tree over control. Fruit yield (No. of fruitshee) increased significantly with the increase in nitrogen and in combination with phosphorus and potassium and recorded maximum in trees receiving N @ 900 g, P @ 300 g and K @ 300 g treatment. Average fruit weight, TSS and vitamin C contents increased with the application of N alone and in combination with P and K in comparison to control. Application of 900 g N, 300 g P and 300 g K was found to be best dose for higher fruit yield and better fruit quality for sweet orange cv. Jaffa.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen alone increased tree volume over control.

Taxon
sweet orangeCitrus sinensist0
Treatment
N alone @ 300 to 900 g/treee0
Outcome
Tree volumee0
Direction
increasede0
Comparator
controle0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Tree volume and stocldscion girth increased with the application of N alone @ 300 to 900 g/tree over control.”

✓ located verbatim in the source · abstract, characters 0–109 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen alone increased stock scion girth over control.

Taxon
sweet orangeCitrus sinensist0
Treatment
N alone @ 300 to 900 g/treee0
Outcome
stocldscion girthe0
Direction
increasede0
Comparator
controle0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Tree volume and stocldscion girth increased with the application of N alone @ 300 to 900 g/tree over control.”

✓ located verbatim in the source · abstract, characters 0–109 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fruit yield increased significantly with nitrogen and with NPK combinations, peaking at the stated NPK dose.

Taxon
sweet orangeCitrus sinensist0
Treatment
N @ 900 g, P @ 300 g and K @ 300 g treatmente0
Outcome
Fruit yielde0
Direction
maximume0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Fruit yield (No. of fruitshee) increased significantly with the increase in nitrogen and in combination with phosphorus and potassium and recorded maximum in trees receiving N @ 900 g, P @ 300 g and K @ 300 g treatment.”

✓ located verbatim in the source · abstract, characters 110–329 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen alone and combined with P and K increased average fruit weight over control.

Taxon
sweet orangeCitrus sinensist0
Treatment
N alone and in combination with P and Ke0
Outcome
Average fruit weighte0
Direction
increasede0
Comparator
controle0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Average fruit weight, TSS and vitamin C contents increased with the application of N alone and in combination with P and K in comparison to control.”

✓ located verbatim in the source · abstract, characters 330–478 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen alone and combined with P and K increased fruit TSS over control.

Taxon
sweet orangeCitrus sinensist0
Treatment
N alone and in combination with P and Ke0
Outcome
TSSe0
Direction
increasede0
Comparator
controle0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Average fruit weight, TSS and vitamin C contents increased with the application of N alone and in combination with P and K in comparison to control.”

✓ located verbatim in the source · abstract, characters 330–478 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen alone and combined with P and K increased fruit vitamin C contents over control.

Taxon
sweet orangeCitrus sinensist0
Treatment
N alone and in combination with P and Ke0
Outcome
vitamin C contentse0
Direction
increasede0
Comparator
controle0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Average fruit weight, TSS and vitamin C contents increased with the application of N alone and in combination with P and K in comparison to control.”

✓ located verbatim in the source · abstract, characters 330–478 · show in text ↑
t0

“sweet orange”

✓ located verbatim in the source · title, characters 44–56 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors identified 900 g N, 300 g P and 300 g K as the best dose for sweet orange yield and quality.

Taxon
sweet orangeCitrus sinensise0
Treatment
900 g N, 300 g P and 300 g Ke0
Outcome
best dose for higher fruit yield and better fruit qualitye0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of 900 g N, 300 g P and 300 g K was found to be best dose for higher fruit yield and better fruit quality for sweet orange cv. Jaffa.”

✓ located verbatim in the source · abstract, characters 479–624 · show in text ↑

potassium · quality: phytochemicals · Citrus sinensis (sweet orange)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. no effect
  2. positive
  3. positive
See all 4 papers →

potassium · quality: sugar starch · Citrus sinensis (sweet orange)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

phosphorus · yield · Citrus sinensis (sweet orange)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

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

  1. negative
  2. positive
    AS+DMPP raised fruit yield.

    Use of Nitrification Inhibitor DMPP to Improve Nitrogen Uptake Efficiency in Citrus Trees · 2013 · compared with ammonium sulphate (AS) and calcium-potassium nitrate (CPN)

    Same direction

  3. positive

3 papers more in this group

See all 7 papers →

potassium · yield · Citrus sinensis (sweet orange)Positive and negative results

19 papers: 17 positive, 2 negative or no effect

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

  1. negative
    Fertilizer without potassium gave intermediate fruit set, fruit number and yield.

    Effect of Balanced Fertilization and Fertilizer Levels on Navel Orange Yield and Fruit Quality · 2012 · compared with farmer treatment

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  2. no effect
  3. positive

15 papers more in this group

See all 19 papers →

phosphorus · quality: sugar starch · Citrus sinensis (sweet orange)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 →

phosphorus · quality: phytochemicals · Citrus sinensis (sweet orange)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 →

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.