Paper · 2021 · Zagazig Journal of Agricultural Research

EFFECT OF NITROGEN , PHOSPHORUS AND POTASSIUM LEVELS AND FOLIAR SPRAY WITH CITRIC AND SALICYLIC ACIDS ON GROWTH, YIELD AND FRUIT QUALITYOF TOMATO PLANTS

Ahmed Abd-Elsalam; A. Bardisi; Dalia Nawar; et al.

7
claims
31
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt, to study the effect of N, P, K levels (25% NPK of the recommended rate (RR), 50% NPK (RR), 75% NPK (RR) and 100% NPK (RR) and foliar spray with citric (2g/l) and salicylic acids (0.2 g), beside sprayed with water (control) on growth, yield and fruit quality of tomato cv.186 grown in clay soil conditions and using drip irrigation sybranches. The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased dry weight of shoots, N,P and K total uptake , number of fruits/ plant , average fruit weight, yield/ plant and total yield/fad., TSS and dry matter in fruits. However, the interaction between fertilizing with 75% RR of N, P and K without spraying increased acidity in fruits. Whereas, the interaction between fertilizing with 100% RR of N,P and K and spraying with salicylic acid at 0.2 g/l increased vitamin C contents in fruits.

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Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Interaction of 75% RR NPK fertilization with salicylic acid spray significantly increased shoot dry weight of tomato compared with water-sprayed control.

Material
cv.186e5
Organ / stage
shootse2
Treatment
75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/le1
Outcome
dry weight of shootse2
Direction
increasede1
Comparator
sprayed with water (control)e3
Setting
Sharkia Governorate, Egypte4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased”

✓ located verbatim in the source · abstract, characters 485–674 · show in text ↑
e2

“significantly increased dry weight of shoots”

✓ located verbatim in the source · abstract, characters 651–695 · show in text ↑
e3

“beside sprayed with water (control)”

✓ located verbatim in the source · abstract, characters 329–364 · show in text ↑
e4

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e5

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Interaction of 75% RR NPK fertilization with salicylic acid spray significantly increased total N, P and K uptake of tomato compared with water-sprayed control.

Material
cv.186e5
Treatment
75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/le1
Outcome
N,P and K total uptakee2
Direction
increasede1
Comparator
sprayed with water (control)e3
Setting
Sharkia Governorate, Egypte4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased”

✓ located verbatim in the source · abstract, characters 485–674 · show in text ↑
e2

“N,P and K total uptake”

✓ located verbatim in the source · abstract, characters 697–719 · show in text ↑
e3

“beside sprayed with water (control)”

✓ located verbatim in the source · abstract, characters 329–364 · show in text ↑
e4

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e5

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Interaction of 75% RR NPK fertilization with salicylic acid spray significantly increased number of fruits per plant, average fruit weight and yield per plant of tomato compared with water-sprayed control.

Material
cv.186e5
Treatment
75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/le1
Outcome
number of fruits/ plant , average fruit weight, yield/ plante2
Direction
increasede1
Comparator
sprayed with water (control)e3
Setting
Sharkia Governorate, Egypte4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased”

✓ located verbatim in the source · abstract, characters 485–674 · show in text ↑
e2

“number of fruits/ plant , average fruit weight, yield/ plant”

✓ located verbatim in the source · abstract, characters 722–782 · show in text ↑
e3

“beside sprayed with water (control)”

✓ located verbatim in the source · abstract, characters 329–364 · show in text ↑
e4

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e5

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Interaction of 75% RR NPK fertilization with salicylic acid spray significantly increased total yield per feddan of tomato compared with water-sprayed control.

Material
cv.186e5
Treatment
75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/le1
Outcome
total yield/fad.e2
Direction
increasede1
Comparator
sprayed with water (control)e3
Setting
Sharkia Governorate, Egypte4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased”

✓ located verbatim in the source · abstract, characters 485–674 · show in text ↑
e2

“total yield/fad.”

✓ located verbatim in the source · abstract, characters 787–803 · show in text ↑
e3

“beside sprayed with water (control)”

✓ located verbatim in the source · abstract, characters 329–364 · show in text ↑
e4

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e5

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Interaction of 75% RR NPK fertilization with salicylic acid spray significantly increased TSS and dry matter in tomato fruits compared with water-sprayed control.

Material
cv.186e5
Treatment
75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/le1
Outcome
TSS and dry matter in fruitse2
Direction
increasede1
Comparator
sprayed with water (control)e3
Setting
Sharkia Governorate, Egypte4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The interaction between fertilizing tomato plants with 75% RR of N,P and K ( 90, 60 and 90 kg of N,P and K, respectively) and spraying with salicylic acid at 0.2 g/l significantly increased”

✓ located verbatim in the source · abstract, characters 485–674 · show in text ↑
e2

“TSS and dry matter in fruits”

✓ located verbatim in the source · abstract, characters 805–833 · show in text ↑
e3

“beside sprayed with water (control)”

✓ located verbatim in the source · abstract, characters 329–364 · show in text ↑
e4

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e5

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Fertilization with 75% RR of NPK without spraying increased acidity in tomato fruits.

Material
cv.186e3
Treatment
fertilizing with 75% RR of N, P and K without sprayinge1
Outcome
acidity in fruitse1
Direction
increasede1
Setting
Sharkia Governorate, Egypte2

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“the interaction between fertilizing with 75% RR of N, P and K without spraying increased acidity in fruits”

✓ located verbatim in the source · abstract, characters 844–950 · show in text ↑
e2

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑
e3

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilization with 100% RR of NPK and salicylic acid spray increased vitamin C content in tomato fruits.

Material
cv.186e2
Treatment
fertilizing with 100% RR of N,P and K and spraying with salicylic acid at 0.2 g/le1
Outcome
vitamin C contents in fruitse1
Direction
increasede1
Setting
Sharkia Governorate, Egypte3

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“the interaction between fertilizing with 100% RR of N,P and K and spraying with salicylic acid at 0.2 g/l increased vitamin C contents in fruits”

✓ located verbatim in the source · abstract, characters 961–1105 · show in text ↑
e2

“tomato cv.186 grown in clay soil conditions”

✓ located verbatim in the source · abstract, characters 403–446 · show in text ↑
e3

“A field experiment was carried out during summer seasons of 2019 and 2020 at a Private Farm, Abo-Hammad Dictrict, Sharkia Governorate, Egypt”

✓ located verbatim in the source · abstract, characters 0–140 · show in text ↑

salicylic acid · quality: sugar starch · Solanum lycopersicum (tomato)Results differ

18 papers: 15 positive, 3 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

14 papers more in this group

See all 18 papers →

salicylic acid · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ

26 papers: 24 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

22 papers more in this group

See all 26 papers →

salicylic acid · growth · Solanum lycopersicum (tomato)Results differ

61 papers: 58 positive, 3 negative or no effect

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

  1. positive
  2. negative
  3. negative

57 papers more in this group

See all 61 papers →

salicylic acid · yield · Solanum lycopersicum (tomato)Positive and negative results

48 papers: 45 positive, 3 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

44 papers more in this group

See all 48 papers →

salicylic acid · nutrient: content · Solanum lycopersicum (tomato)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

nitrogen · quality: sugar starch · Solanum lycopersicum (tomato)Results differ

31 papers: 24 positive, 7 negative or no effect

23 papers in the same direction as this paper · 7 in the opposite direction

  1. negative
  2. negative
    Prior mild N deficiency increased leaf sugar content under drought.

    Cross‐stress tolerance: Mild nitrogen (N) deficiency effects on drought stress response of tomato (Solanum lycopersicum L.) · 2021 · compared with adequate N (5 mM NO 3 − )

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

  3. negative

27 papers more in this group

See all 31 papers →

potassium · growth · Solanum lycopersicum (tomato)Results differ

47 papers: 34 positive, 13 negative or no effect

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

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

43 papers more in this group

See all 47 papers →

nitrogen · nutrient: content · Solanum lycopersicum (tomato)Results differ

77 papers: 59 positive, 18 negative or no effect

58 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

73 papers more in this group

See all 77 papers →

8 of 26 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.