Paper · 2009 · Pakistan Journal of Botany

Response of wheat to foliar and soil application of urea at different growth stages.

Parvez Khan; Muhammad Yousuf Memon; Muhammad Imtiaz; et al.

7
claims
14
verbatim quotes
62
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted to evaluate the effect of foliar application of urea applied in different concentrations and at different stages on yield and yield components of wheat (Triticum aestivum L) cv. “Kiran-95” under agro-climatic condition of Sindh. The experiment was laid out according to randomized complete block design having two factors with four repeats. Six concentrations of urea i.e., 0, 2, 4, 6, 8 and 10% as foliar application along with 60 and 120 kg N ha -1 were applied as soil application. The results revealed that foliar application of urea significantly increased plant height, spike length, number of grains spike -1 , hundred grain weight, biological yield, grain yield and N uptake by the crop. The foliar spray of 4% urea solution was found to be most effective for enhancing the quantitative and qualitative traits when sprayed at tillering, stem elongation and boot stage. The grain yield was increased by 32% when 4% urea solution was applied as foliar spray. Further increase in the concentrations of urea spray was not found to be useful and economical as it declined the grain yield by 25% or even more probably due to its toxicity.

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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 resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar urea increased plant height and spike length significantly.

Treatment
foliar application of ureae0
Outcome
plant height, spike lengthe0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar application of urea significantly increased plant height, spike length, number of grains spike -1 , hundred grain weight, biological yield, grain yield and N uptake by the crop.”

✓ located verbatim in the source · abstract, characters 544–728 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar urea increased grains per spike and hundred-grain weight significantly.

Treatment
foliar application of ureae0
Outcome
number of grains spike -1 , hundred grain weighte0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar application of urea significantly increased plant height, spike length, number of grains spike -1 , hundred grain weight, biological yield, grain yield and N uptake by the crop.”

✓ located verbatim in the source · abstract, characters 544–728 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar urea increased biological and grain yield significantly.

Treatment
foliar application of ureae0
Outcome
biological yield, grain yielde0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar application of urea significantly increased plant height, spike length, number of grains spike -1 , hundred grain weight, biological yield, grain yield and N uptake by the crop.”

✓ located verbatim in the source · abstract, characters 544–728 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 12–17 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar urea significantly increased wheat N uptake.

Treatment
foliar application of ureae0
Outcome
N uptakee0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar application of urea significantly increased plant height, spike length, number of grains spike -1 , hundred grain weight, biological yield, grain yield and N uptake by the crop.”

✓ located verbatim in the source · abstract, characters 544–728 · show in text ↑
t0

“wheat”

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

Claim · model-written summary

Four-percent urea sprayed at tillering, stem elongation and boot was most effective for quantitative and qualitative traits.

Organ / stage
tillering, stem elongation and boot stagee0
Treatment
foliar spray of 4% urea solutione0
Outcome
quantitative and qualitative traitse0
Direction
most effectivee0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The foliar spray of 4% urea solution was found to be most effective for enhancing the quantitative and qualitative traits when sprayed at tillering, stem elongation and boot stage.”

✓ located verbatim in the source · abstract, characters 729–909 · show in text ↑
t0

“wheat”

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

Claim · model-written summary

Four-percent foliar urea increased grain yield by 32%.

Treatment
4% urea solution was applied as foliar spraye0
Outcome
grain yielde0
Direction
increasede0
Value
32%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The grain yield was increased by 32% when 4% urea solution was applied as foliar spray.”

✓ located verbatim in the source · abstract, characters 910–997 · show in text ↑
t0

“wheat”

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

Claim · model-written summary

Higher urea concentrations reduced grain yield by at least 25%.

Treatment
Further increase in the concentrations of urea spraye0
Outcome
grain yielde0
Direction
declinede0
Value
25% or even moree0
Qualifier
probably due to its toxicitye0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Further increase in the concentrations of urea spray was not found to be useful and economical as it declined the grain yield by 25% or even more probably due to its toxicity.”

✓ located verbatim in the source · abstract, characters 998–1173 · show in text ↑
t0

“wheat”

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

application · nutrient: content · Triticum aestivum (wheat)Positive and negative results

275 papers: 257 positive, 18 negative or no effect

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nitrogen · nutrient: content · Triticum aestivum (wheat)Positive and negative results

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application · yield · Triticum aestivum (wheat)Positive and negative results

877 papers: 795 positive, 82 negative or no effect

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  1. no effect
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nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. positive
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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.