Paper · 1999

Influence of nitrogen and sulphur on growth, yield and oil content of sunflower (Helianthus annus) grown in spring season

P. K. LEGHA; Gajendra Giri

7
claims
11
verbatim quotes
13
citations
1
research areas
—
Not open access

Abstract

An experiment was conducted at New Delhi during 1994 and 1995 in sandy loam soil low in available N and S. Nitrogen application up to 80 kg/ha significantly improved the growth, yield attributes and seed and oil yields of sunflower (Helianthus annuus L.). Sulphur at 30 kg/ha significantly increased the number of seeds and seed weight per capitulum resulting in significantly higher seed yields. Application of 60 kg S/ha also increased the seed and oil yields in both the years. Optimum doses of N and S were 112 and 53.6 kg/ha respectively.

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Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen up to 80 kg/ha significantly improved sunflower growth and yield attributes.

Taxon
sunflowerHelianthus annuuse0
Treatment
Nitrogen application up to 80 kg/hae0
Outcome
growth, yield attributese0
Direction
improvede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application up to 80 kg/ha significantly improved the growth, yield attributes and seed and oil yields of sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · abstract, characters 107–254 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen up to 80 kg/ha significantly improved sunflower seed yield.

Taxon
sunflowerHelianthus annuuse0
Treatment
Nitrogen application up to 80 kg/hae0
Outcome
seede0
Direction
improvede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application up to 80 kg/ha significantly improved the growth, yield attributes and seed and oil yields of sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · abstract, characters 107–254 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen up to 80 kg/ha significantly improved sunflower oil yield.

Taxon
sunflowerHelianthus annuuse0
Treatment
Nitrogen application up to 80 kg/hae0
Outcome
oil yieldse0
Direction
improvede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application up to 80 kg/ha significantly improved the growth, yield attributes and seed and oil yields of sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · abstract, characters 107–254 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulphur at 30 kg/ha increased seed number and weight per capitulum.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulphur at 30 kg/hae0
Outcome
number of seeds and seed weight per capitulume0
Direction
increasede0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Sulphur at 30 kg/ha significantly increased the number of seeds and seed weight per capitulum resulting in significantly higher seed yields”

✓ located verbatim in the source · abstract, characters 256–395 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 70–79 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulphur at 30 kg/ha increased seed yield.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulphur at 30 kg/hae0
Outcome
seed yieldse0
Direction
highere0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Sulphur at 30 kg/ha significantly increased the number of seeds and seed weight per capitulum resulting in significantly higher seed yields”

✓ located verbatim in the source · abstract, characters 256–395 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 70–79 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulphur at 60 kg/ha increased seed and oil yields in both years.

Taxon
sunflowerHelianthus annuust0
Treatment
Application of 60 kg S/hae0
Outcome
seed and oil yieldse0
Direction
increasede0
Qualifier
both the yearse0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Application of 60 kg S/ha also increased the seed and oil yields in both the years”

✓ located verbatim in the source · abstract, characters 397–479 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 70–79 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Estimated optimum nitrogen and sulphur doses were 112 and 53.6 kg/ha, respectively.

Taxon
sunflowerHelianthus annuust0
Outcome
Optimum doses of N and Se0
Value
112 and 53.6 kg/hae0

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Optimum doses of N and S were 112 and 53.6 kg/ha respectively”

✓ located verbatim in the source · abstract, characters 481–542 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 70–79 · show in text ↑

sulfur atom · yield · Helianthus annuus (common sunflower)Results differ

45 papers: 43 positive, 2 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

41 papers more in this group

See all 45 papers →

nitrogen · yield · Helianthus annuus (common sunflower)Positive and negative results

196 papers: 182 positive, 14 negative or no effect

181 papers in the same direction as this paper · 10 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

192 papers more in this group

See all 196 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.