Paper · 2023 · Horticulture Research Journal

Response of Guava Transplants to Soil Fertilization and Foliar Spray with Algae Extract

M Farag; S Abdelwahed; B Hend; et al.

7
claims
11
verbatim quotes
0
citations
3
research areas
✓
Open access · cc-by

Abstract

This experiment was carried out during two successive seasons 2019 and 2020 to study the beneficial effects of substituting marine algae extract concentration for mineral N, P, and K soil application on vegetative growth and its nutritional condition of 2-years old guava transplant, grown in a private orchard in Abu-Homos, El-Beheira government, Egypt. The obtained results showed that, using half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in vegetative growth as (length of guava transplants, No. of leaves/plant, leaf area, No. of new shoots, diameter of stem and leaf chlorophyll content). While, the control treatment recorded the highest value in leaf carotene content as compared with other treatments. Furthermore, the half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in leaf mineral contents (N, P, K, Ca, Mg, Fe, Zn, Mn and Cu) compared with other treatments.

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased transplant length, leaf number and leaf area.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
length of guava transplants, No. of leaves/plant, leaf areae0
Direction
increasee0

Not reportedComparator

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“using half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in vegetative growth as (length of guava transplants, No. of leaves/plant, leaf area, No. of new shoots, diameter of stem and leaf chlorophyll content)”

✓ located verbatim in the source · abstract, characters 389–674 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased new shoots and stem diameter.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
No. of new shoots, diameter of steme0
Direction
increasee0

Not reportedComparator

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“using half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in vegetative growth as (length of guava transplants, No. of leaves/plant, leaf area, No. of new shoots, diameter of stem and leaf chlorophyll content)”

✓ located verbatim in the source · abstract, characters 389–674 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased leaf chlorophyll content.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
leaf chlorophyll contente0
Direction
increasee0

Not reportedComparator

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“using half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in vegetative growth as (length of guava transplants, No. of leaves/plant, leaf area, No. of new shoots, diameter of stem and leaf chlorophyll content)”

✓ located verbatim in the source · abstract, characters 389–674 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Control plants had the highest leaf carotene content.

Treatment
control treatmente0
Outcome
leaf carotene contente0
Direction
higheste0
Comparator
other treatmentse0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the control treatment recorded the highest value in leaf carotene content as compared with other treatments”

✓ located verbatim in the source · abstract, characters 683–790 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased leaf N, P and K relative to other treatments.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
leaf mineral contents (N, P, Ke0
Direction
increasee0
Comparator
other treatmentse0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in leaf mineral contents (N, P, K, Ca, Mg, Fe, Zn, Mn and Cu) compared with other treatments”

✓ located verbatim in the source · abstract, characters 805–1029 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased leaf Ca, Mg and Fe relative to other treatments.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
Ca, Mg, Fee0
Direction
increasee0
Comparator
other treatmentse0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in leaf mineral contents (N, P, K, Ca, Mg, Fe, Zn, Mn and Cu) compared with other treatments”

✓ located verbatim in the source · abstract, characters 805–1029 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The half-dose fertilizer and algae spray increased leaf Zn, Mn and Cu relative to other treatments.

Treatment
half of the recommended dose as a soil application for transplant with spraying algae extracts on the leavese0
Outcome
Zn, Mn and Cue0
Direction
increasee0
Comparator
other treatmentse0

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

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the half of the recommended dose as a soil application for transplant with spraying algae extracts on the leaves led to an increase in leaf mineral contents (N, P, K, Ca, Mg, Fe, Zn, Mn and Cu) compared with other treatments”

✓ located verbatim in the source · abstract, characters 805–1029 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑

application · nutrient: content · Psidium guajava (guava)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. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

botanical · growth · Psidium guajava (guava)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

application · physiology: pigments · Psidium guajava (guava)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

application · growth · Psidium guajava (guava)Positive and negative results

29 papers: 28 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

25 papers more in this group

See all 29 papers →

transplanting · growth · Psidium guajava (guava)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 →

botanical · physiology: pigments · Psidium guajava (guava)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 →

botanical · nutrient: content · Psidium guajava (guava)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.