Paper · 1988 · Journal of Horticultural Science

Effects of soil and foliar applications of urea on productivity and the tree nitrogen status of apricot

G. Sud; V. P. Bhutani

4
claims
8
verbatim quotes
6
citations
3
research areas
—
Not open access

Abstract

SummaryA field trial was laid out on full bearing ‘New Castle’ apricot trees during 1981–84 with three levels of nitrogen (200, 400, 600 g tree1) and four modes of application (soil application alone and supplemented with 1–3 urea sprays, each containing 5 1 aqueous solution of 1% urea to each tree). 400 g N, supplemented with two foliar sprays of urea, the first applied in the second week of April, when the leaves were fully expanded and the second after two weeks resulted in optimum vegetative growth, larger fruit, higher yield and improved tree N status.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

400 g N plus two foliar urea sprays gave optimum vegetative growth in New Castle apricot.

Taxon
apricotPrunus armeniacat0
Treatment
400 g N, supplemented with two foliar sprays of ureae0
Outcome
vegetative growthe0
Direction
optimume0

Not reportedMaterialComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“400 g N, supplemented with two foliar sprays of urea, the first applied in the second week of April, when the leaves were fully expanded and the second after two weeks resulted in optimum vegetative growth, larger fruit, higher yield and improved tree N status”

✓ located verbatim in the source · abstract, characters 302–562 · show in text ↑
t0

“apricot”

✓ located verbatim in the source · title, characters 96–103 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

400 g N plus two foliar urea sprays produced larger fruit.

Taxon
apricotPrunus armeniacat0
Treatment
400 g N, supplemented with two foliar sprays of ureae0
Outcome
fruite0
Direction
largere0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“400 g N, supplemented with two foliar sprays of urea, the first applied in the second week of April, when the leaves were fully expanded and the second after two weeks resulted in optimum vegetative growth, larger fruit, higher yield and improved tree N status”

✓ located verbatim in the source · abstract, characters 302–562 · show in text ↑
t0

“apricot”

✓ located verbatim in the source · title, characters 96–103 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

400 g N plus two foliar urea sprays increased apricot yield.

Taxon
apricotPrunus armeniacat0
Treatment
400 g N, supplemented with two foliar sprays of ureae0
Outcome
yielde0
Direction
highere0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“400 g N, supplemented with two foliar sprays of urea, the first applied in the second week of April, when the leaves were fully expanded and the second after two weeks resulted in optimum vegetative growth, larger fruit, higher yield and improved tree N status”

✓ located verbatim in the source · abstract, characters 302–562 · show in text ↑
t0

“apricot”

✓ located verbatim in the source · title, characters 96–103 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

400 g N plus two foliar urea sprays improved apricot tree nitrogen status.

Taxon
apricotPrunus armeniacat0
Treatment
400 g N, supplemented with two foliar sprays of ureae0
Outcome
tree N statuse0
Direction
improvede0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“400 g N, supplemented with two foliar sprays of urea, the first applied in the second week of April, when the leaves were fully expanded and the second after two weeks resulted in optimum vegetative growth, larger fruit, higher yield and improved tree N status”

✓ located verbatim in the source · abstract, characters 302–562 · show in text ↑
t0

“apricot”

✓ located verbatim in the source · title, characters 96–103 · show in text ↑

nitrogen · yield · Prunus armeniaca (apricot)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

nitrogen · growth · Prunus armeniaca (apricot)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

4 papers more in this group

See all 8 papers →

application · nutrient: content · Prunus armeniaca (apricot)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. no effect
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

application · yield · Prunus armeniaca (apricot)Positive and negative results

18 papers: 15 positive, 3 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

14 papers more in this group

See all 18 papers →

application · growth · Prunus armeniaca (apricot)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
  2. negative
  3. positive

15 papers more in this group

See all 19 papers →

nitrogen · nutrient: content · Prunus armeniaca (apricot)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.