Paper · 2023 · International Journal of Environment and Climate Change

Study of Nitrogen Rates and Nano Urea Effects on Physiological Parameters and Yield of Safflower (Carthamus tinctorius L.)

Peddinti Anu Gayathri; S. B. Ghuge; S. A. Shinde; et al.

7
claims
9
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

Safflower (Carthamus tinctorius L.) is an important oil seed crop, essential as vegetable oil for humans and feed for livestock. The experiment was conducted in a split plot design to study the effects of foliar application of nano urea and urea on safflower growth and development. The results showed that application of 100% nitrogen in the form of urea topdressing at vegetative stage and foliar spray of nano urea twice at flowering and seed filling stages significantly improved the physiological parameters viz. plant height (cm), primary branches of safflower. The CSI, RWC, Seed yield (kg/ha), 100 seed weight (g) and hull content (%) of safflower also significantly improved with 100% N and foliar spray of nano urea twice at flowering and seed filling stages. The result from the study suggests that application of urea as split doses and foliar spray of nano urea at reproductive stage is beneficial for the crop and will improve seed yield and oil quality of safflower. Foliar application of nano urea improves the nutrient uptake by the crop through its slow and controlled release of nutrients. It also helps in reducing environmental pollution due to leaching of fertilizers.

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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

Full nitrogen topdressing with two nano urea sprays significantly improved plant height and primary branches.

Treatment
100% nitrogen in the form of urea topdressing at vegetative stage and foliar spray of nano urea twice at flowering and seed filling stagese0
Outcome
plant height (cm), primary branchese0
Direction
improvede0

Not reportedComparator

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of 100% nitrogen in the form of urea topdressing at vegetative stage and foliar spray of nano urea twice at flowering and seed filling stages significantly improved the physiological parameters viz. plant height (cm), primary branches of safflower”

✓ located verbatim in the source · abstract, characters 307–566 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same fertilizer program significantly improved CSI and RWC.

Treatment
100% N and foliar spray of nano urea twice at flowering and seed filling stagese0
Outcome
CSI, RWCe0
Direction
improvede0

Not reportedComparator

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The CSI, RWC, Seed yield (kg/ha), 100 seed weight (g) and hull content (%) of safflower also significantly improved with 100% N and foliar spray of nano urea twice at flowering and seed filling stages”

✓ located verbatim in the source · abstract, characters 568–768 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same fertilizer program significantly improved seed yield and 100 seed weight.

Treatment
100% N and foliar spray of nano urea twice at flowering and seed filling stagese0
Outcome
Seed yield (kg/ha), 100 seed weight (g)e0
Direction
improvede0

Not reportedComparator

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The CSI, RWC, Seed yield (kg/ha), 100 seed weight (g) and hull content (%) of safflower also significantly improved with 100% N and foliar spray of nano urea twice at flowering and seed filling stages”

✓ located verbatim in the source · abstract, characters 568–768 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same fertilizer program significantly improved hull content.

Treatment
100% N and foliar spray of nano urea twice at flowering and seed filling stagese0
Outcome
hull content (%)e0
Direction
improvede0

Not reportedComparator

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“hull content (%) of safflower also significantly improved with 100% N and foliar spray of nano urea twice at flowering and seed filling stages”

✓ located verbatim in the source · abstract, characters 626–768 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend split urea doses and nano urea sprays at reproductive stage for seed yield and oil quality.

Treatment
urea as split doses and foliar spray of nano urea at reproductive stagee0
Outcome
seed yield and oil qualitye0

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of urea as split doses and foliar spray of nano urea at reproductive stage is beneficial for the crop and will improve seed yield and oil quality of safflower”

✓ located verbatim in the source · abstract, characters 810–980 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors attribute improved crop nutrient uptake to slow and controlled nutrient release from nano urea.

Treatment
Foliar application of nano ureae0
Outcome
nutrient uptakee0
Qualifier
slow and controlled release of nutrientse0

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar application of nano urea improves the nutrient uptake by the crop through its slow and controlled release of nutrients”

✓ located verbatim in the source · abstract, characters 982–1107 · show in text ↑
t0

“Safflower”

✓ located verbatim in the source · title, characters 87–96 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors state nano urea reduces pollution from fertilizer leaching.

Outcome
reducing environmental pollutione0
Qualifier
leaching of fertilizerse0

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

Carthamus tinctorius
Carthamus tinctorius · Taxon · picture from its Wikimedia Commons categoryH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“It also helps in reducing environmental pollution due to leaching of fertilizers”

✓ located verbatim in the source · abstract, characters 1109–1189 · show in text ↑
t0

“Safflower”

✓ located verbatim in the source · title, characters 87–96 · show in text ↑

nitrogen · yield · Carthamus tinctorius (safflower)Results differ

41 papers: 36 positive, 5 negative or no effect

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

  1. negative
  2. no effect
  3. negative

37 papers more in this group

See all 41 papers →

stage · growth · Carthamus tinctorius (safflower)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

1 paper more in this group

See all 5 papers →

nanoparticle · growth · Carthamus tinctorius (safflower)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

stage · yield · Carthamus tinctorius (safflower)Positive and negative results

19 papers: 12 positive, 7 negative or no effect

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

  1. negative
  2. negative
  3. negative

15 papers more in this group

See all 19 papers →

nitrogen · growth · Carthamus tinctorius (safflower)Positive and negative results

20 papers: 18 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

16 papers more in this group

See all 20 papers →

fertilization · growth · Carthamus tinctorius (safflower)Positive and negative results

36 papers: 34 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

32 papers more in this group

See all 36 papers →

application · yield · Carthamus tinctorius (safflower)Positive and negative results

38 papers: 37 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

34 papers more in this group

See all 38 papers →

nitrogen · molecular: metabolites · Carthamus tinctorius (safflower)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 →

8 of 15 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.