Paper · 2025 · Ecology Environment and Conservation

Effect of Foliar Application of Nano Urea and Nano DAP on Growth and Yield Parameters of Grapes (Vitis vinifera) Cv. Muscat Hamburg

Venkatraj N.; Rajkumar M.

6
claims
17
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

An experiment conducted to assess the effect of foliar application of Nano Urea and Nano DAP on growth and yield parameters of grapes variety Muscat Hamburg. This experiment was conducted in Randomized Block Design (RBD) with 16 treatments (T1 (0.2% Nano Urea), T2 (0.3% Nano Urea), T3 (0.4% Nano Urea), T4 (0.2% Nano DAP), T5 (0.3% Nano DAP), T6 (0.4% Nano DAP), T7 (0.2% Nano Urea + 0.2% Nano DAP), T8 (0.2% Nano Urea + 0.3% Nano DAP), T9 (0.2% Nano Urea + 0.4% Nano DAP), T10 (0.3% Nano Urea + 0.2% Nano DAP), T11 (0.3% Nano Urea + 0.3% Nano DAP), T12 (0.3% Nano Urea + 0.4% Nano DAP), T13 (0.4% Nano Urea + 0.2% Nano DAP), T14 (0.4% Nano Urea + 0.3% Nano DAP), T15 (0.4% Nano Urea + 0.4% Nano DAP) & T16 (Recommended dose of NP through soil application)) in two replications and sprayed at vegetative stage and berry development stage. The data revealed that T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg). In comparison, T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 (0.2% Nano Urea + 0.4% Nano DAP) gave the highest leaf length, leaf width and leaf area.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
T9 (0.2% Nano Urea + 0.4% Nano DAP)e1
Outcome
leaf length (cm), leaf width (cm), leaf area (cm2 )e1
Direction
higheste1
Comparator
Recommended dose of NPK through soil applicatione2

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e1

“T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg)”

✓ located verbatim in the source · abstract, characters 863–1278 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the highest shoot length, petiole base girth and cane girth.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
T9 (0.2% Nano Urea + 0.4% Nano DAP)e1
Outcome
shoot length (cm), petiole base girth (cm), cane girth (cm)e1
Direction
higheste1
Comparator
Recommended dose of NPK through soil applicatione2

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e1

“T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg)”

✓ located verbatim in the source · abstract, characters 863–1278 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the highest specific leaf weight.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
T9 (0.2% Nano Urea + 0.4% Nano DAP)e1
Outcome
specific leaf weight (mg/cm2 )e1
Direction
higheste1
Comparator
Recommended dose of NPK through soil applicatione2

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e1

“T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg)”

✓ located verbatim in the source · abstract, characters 863–1278 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the highest bunch weight, rachis number per bunch and berry number per rachis.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
T9 (0.2% Nano Urea + 0.4% Nano DAP)e1
Outcome
bunch weight (g), number of rachis per bunch, number of berries per rachise1
Direction
higheste1
Comparator
Recommended dose of NPK through soil applicatione2

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e1

“T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg)”

✓ located verbatim in the source · abstract, characters 863–1278 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the highest berry number per bunch, bunch number per vine and yield per vine.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
T9 (0.2% Nano Urea + 0.4% Nano DAP)e1
Outcome
number of berries per bunch, number of bunches per vine and yield per vine (kg)e1
Direction
higheste1
Comparator
Recommended dose of NPK through soil applicatione2

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e1

“T9 (0.2% Nano Urea + 0.4% Nano DAP) showed the highest values for Growth parameters like leaf length (cm), leaf width (cm), leaf area (cm2 ), shoot length (cm), petiole base girth (cm), cane girth (cm), specific leaf weight (mg/cm2 ) and yield parameters like bunch weight (g), number of rachis per bunch, number of berries per rachis, number of berries per bunch, number of bunches per vine and yield per vine (kg)”

✓ located verbatim in the source · abstract, characters 863–1278 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The recommended NPK soil application gave the lowest growth and yield parameter values.

Taxon
Vitis viniferaVitis viniferat0
Material
Muscat Hamburgt0
Treatment
Recommended dose of NPK through soil applicatione2
Outcome
growth and yield parameter valuese2
Direction
loweste2

Not reportedComparator

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Grapes (Vitis vinifera) Cv. Muscat Hamburg”

✓ located verbatim in the source · title, characters 89–131 · show in text ↑
e2

“T16 (Recommended dose of NPK through soil application) showed the lowest growth and yield parameter values”

✓ located verbatim in the source · abstract, characters 1295–1401 · show in text ↑

nitrogen · yield · Vitis vinifera (wine grape)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive
    Nitrogen limitation curtailed yields.

    Gas exchange, vine performance and modulation of secondary metabolism in Vitis vinifera L. cv Barbera following long-term nitrogen deficit · 2021 · compared with non-limiting nitrogen availability

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

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nitrogen · growth · Vitis vinifera (wine grape)Positive and negative results

8 papers: 5 positive, 3 negative or no effect

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

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

4 papers more in this group

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fertilization · yield · Vitis vinifera (wine grape)Positive and negative results

21 papers: 17 positive, 4 negative or no effect

3 papers in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. positive
  3. positive

17 papers more in this group

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application · yield · Vitis vinifera (wine grape)Positive and negative results

30 papers: 26 positive, 4 negative or no effect

3 papers in the same direction as this paper · 26 in the opposite direction

  1. positive
  2. positive
  3. positive

26 papers more in this group

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nanoparticle · growth · Vitis vinifera (wine grape)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
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nanoparticle · yield · Vitis vinifera (wine grape)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

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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.