Paper · 2021 · Horticulturae

The Application of Nitrogen Fertilization and Foliar Spraying with Calcium and Boron Affects Growth Aspects, Chemical Composition, Productivity and Fruit Quality of Strawberry Plants

Mustafa. H. M. Mohamed; Spyridon A. Petropoulos; Maha Mohamed Elsayed Ali

10
claims
20
verbatim quotes
25
citations
2
research areas
✓
Open access · cc-by

Abstract

Strawberries are rich in antioxidants and plant components to enhance cardiac health and regulate blood sugar. This experiment investigates the effects of N fertilization and foliar spraying with calcium (Ca) and boron (B) on growth, chemical composition of plant foliage, fruit yield, and quality of strawberry plants (Fragaria × ananassa Duch. cv. Fortuna). This experiment includes 12 treatments from the combination between four N fertilizers treatments (combinations of mineral and organic fertilizers) and three foliar spraying treatments with Ca+B at 2 and 4 mL/L in addition to the control treatment (spraying with tap water). Results show that the treatment where 50% of the recommended dose of N (50% RDN) was applied with mineral fertilizer + 100% organic N was the most effective one since it induced the highest values of plant height, number of crowns per plant, number of leaves per plant, fresh and dry weight per plant, especially when combined with the foliar application of Ca+B at the highest tested rate (4 mL/L). The highest values of N, P, K, Ca, B, and total carbohydrate contents were also scored for the combination of 50% RDN + 100% organic N and the foliar spraying with Ca+B at 4 mL/L in both growing seasons. In addition, the highest values of fruit yield per plant and per hectare, exportable fruit yield/ha, fruit firmness, fruit TSS, Vitamin C, total sugars, and anthocyanin, as well as the lowest values of total acidity were recorded for the combined treatment of 50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L). The highest recorded value of length, diameter, and weight of fruit were scored by fertilizing strawberry plants with the recommended dose of mineral N (100% RDN) and spraying with Ca+B at the highest rate in both growing seasons. In conclusion, it could be suggested that fertilization of strawberry plants with half the recommended dose with mineral N fertilizer + 100% organic fertilizer and foliar spraying with Ca+B at 4 mL/L increases plant growth and improve yield parameters and fruit quality of the strawberry plants.

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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilizing with 50% RDN plus 100% organic N gave the highest plant height, number of crowns and number of leaves per plant.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% of the recommended dose of N (50% RDN) was applied with mineral fertilizer + 100% organic Ne2
Outcome
plant height, number of crowns per plant, number of leaves per plante1
Direction
higheste1

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e1

“it induced the highest values of plant height, number of crowns per plant, number of leaves per plant, fresh and dry weight per plant”

✓ located verbatim in the source · abstract, characters 802–935 · show in text ↑
e2

“the treatment where 50% of the recommended dose of N (50% RDN) was applied with mineral fertilizer + 100% organic N”

✓ located verbatim in the source · abstract, characters 653–768 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilizing with 50% RDN plus 100% organic N gave the highest fresh and dry weight per plant.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% of the recommended dose of N (50% RDN) was applied with mineral fertilizer + 100% organic Ne2
Outcome
fresh and dry weight per plante1
Direction
higheste1

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e1

“it induced the highest values of plant height, number of crowns per plant, number of leaves per plant, fresh and dry weight per plant”

✓ located verbatim in the source · abstract, characters 802–935 · show in text ↑
e2

“the treatment where 50% of the recommended dose of N (50% RDN) was applied with mineral fertilizer + 100% organic N”

✓ located verbatim in the source · abstract, characters 653–768 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest N, P and K contents were found for 50% RDN plus 100% organic N with foliar Ca+B at 4 mL/L, in both growing seasons.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic N and the foliar spraying with Ca+B at 4 mL/Le4
Outcome
N, P, Ke4
Direction
higheste4
Setting
both growing seasonse4

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e4

“The highest values of N, P, K, Ca, B, and total carbohydrate contents were also scored for the combination of 50% RDN + 100% organic N and the foliar spraying with Ca+B at 4 mL/L in both growing seasons”

✓ located verbatim in the source · abstract, characters 1035–1237 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest Ca, B and total carbohydrate contents were found for 50% RDN plus 100% organic N with foliar Ca+B at 4 mL/L, in both growing seasons.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic N and the foliar spraying with Ca+B at 4 mL/Le4
Outcome
Ca, B, and total carbohydrate contentse4
Direction
higheste4
Setting
both growing seasonse4

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e4

“The highest values of N, P, K, Ca, B, and total carbohydrate contents were also scored for the combination of 50% RDN + 100% organic N and the foliar spraying with Ca+B at 4 mL/L in both growing seasons”

✓ located verbatim in the source · abstract, characters 1035–1237 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fruit yield per plant and per hectare and exportable fruit yield per hectare were highest for the combined treatment of 50% RDN plus 100% organic N and Ca+B at 4 mL/L.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)e5
Outcome
fruit yield per plant and per hectare, exportable fruit yield/hae5
Direction
higheste5

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e5

“the highest values of fruit yield per plant and per hectare, exportable fruit yield/ha, fruit firmness, fruit TSS, Vitamin C, total sugars, and anthocyanin, as well as the lowest values of total acidity were recorded for the combined treatment of 50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)”

✓ located verbatim in the source · abstract, characters 1252–1559 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fruit firmness, fruit TSS and Vitamin C were highest for the combined treatment of 50% RDN plus 100% organic N and Ca+B at 4 mL/L.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)e5
Outcome
fruit firmness, fruit TSS, Vitamin Ce5
Direction
higheste5

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e5

“the highest values of fruit yield per plant and per hectare, exportable fruit yield/ha, fruit firmness, fruit TSS, Vitamin C, total sugars, and anthocyanin, as well as the lowest values of total acidity were recorded for the combined treatment of 50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)”

✓ located verbatim in the source · abstract, characters 1252–1559 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Total sugars and anthocyanin were highest for the combined treatment of 50% RDN plus 100% organic N and Ca+B at 4 mL/L.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)e5
Outcome
total sugars, and anthocyanine5
Direction
higheste5

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e5

“the highest values of fruit yield per plant and per hectare, exportable fruit yield/ha, fruit firmness, fruit TSS, Vitamin C, total sugars, and anthocyanin, as well as the lowest values of total acidity were recorded for the combined treatment of 50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)”

✓ located verbatim in the source · abstract, characters 1252–1559 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Total acidity was lowest for the combined treatment of 50% RDN plus 100% organic N and Ca+B at 4 mL/L.

Taxon
strawberry plantsFragaria ×ananassae0
Treatment
50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)e5
Outcome
total aciditye5
Direction
loweste5

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“quality of strawberry plants”

✓ located verbatim in the source · abstract, characters 290–318 · show in text ↑
e5

“the highest values of fruit yield per plant and per hectare, exportable fruit yield/ha, fruit firmness, fruit TSS, Vitamin C, total sugars, and anthocyanin, as well as the lowest values of total acidity were recorded for the combined treatment of 50% RDN + 100% organic and Ca+B at the highest rate (4 mL/L)”

✓ located verbatim in the source · abstract, characters 1252–1559 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fruit length, diameter and weight were highest with 100% RDN mineral N plus Ca+B at the highest rate, in both growing seasons.

Taxon
strawberry plantsFragaria ×ananassae6
Treatment
fertilizing strawberry plants with the recommended dose of mineral N (100% RDN) and spraying with Ca+B at the highest ratee6
Outcome
length, diameter, and weight of fruite6
Direction
higheste6
Setting
both growing seasonse6

Not reportedComparator

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e6

“The highest recorded value of length, diameter, and weight of fruit were scored by fertilizing strawberry plants with the recommended dose of mineral N (100% RDN) and spraying with Ca+B at the highest rate in both growing seasons”

✓ located verbatim in the source · abstract, characters 1561–1790 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Half the recommended N dose as mineral fertilizer plus 100% organic fertilizer with foliar Ca+B at 4 mL/L could be suggested to increase plant growth, yield parameters and fruit quality.

Taxon
strawberry plantsFragaria ×ananassae7
Treatment
fertilization of strawberry plants with half the recommended dose with mineral N fertilizer + 100% organic fertilizer and foliar spraying with Ca+B at 4 mL/Le7
Outcome
yield parameters and fruit qualitye7

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e7

“fertilization of strawberry plants with half the recommended dose with mineral N fertilizer + 100% organic fertilizer and foliar spraying with Ca+B at 4 mL/L increases plant growth and improve yield parameters and fruit quality”

✓ located verbatim in the source · abstract, characters 1834–2061 · show in text ↑

calcium atom · quality: sugar starch · Fragaria x ananassa (strawberry)Results differ

6 papers: 4 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

2 papers more in this group

See all 6 papers →

calcium atom · yield · Fragaria x ananassa (strawberry)Results differ

21 papers: 18 positive, 3 negative or no effect

17 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

17 papers more in this group

See all 21 papers →

calcium atom · nutrient: content · Fragaria x ananassa (strawberry)Positive and negative results

12 papers: 9 positive, 3 negative or no effect

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

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

8 papers more in this group

See all 12 papers →

calcium atom · growth · Fragaria x ananassa (strawberry)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. no effect
  2. positive
  3. positive

13 papers more in this group

See all 17 papers →

application · nutrient: content · Fragaria x ananassa (strawberry)Positive and negative results

20 papers: 19 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

application · quality: sugar starch · Fragaria x ananassa (strawberry)Positive and negative results

32 papers: 30 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

28 papers more in this group

See all 32 papers →

application · growth · Fragaria x ananassa (strawberry)Positive and negative results

58 papers: 51 positive, 7 negative or no effect

50 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

54 papers more in this group

See all 58 papers →

fertilization · growth · Fragaria x ananassa (strawberry)Positive and negative results

141 papers: 117 positive, 24 negative or no effect

116 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

137 papers more in this group

See all 141 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.