Abstract
In field experiments conducted for three years significant yield response to N and P was observed up to 60 kg N and 30 kg P2O5 ha−1. Total N and P uptake also increased significantly with the applied nutrients. N application, in the absence of P, decreased oil percentage in sunflower seed. P application up to 30 kg P2O5 ha−1 resulted in significant increase in oil content. Oleic acid: linoleic acid ratio increased due to N application indicating improvement in stability and cooking quality of oil. Nitrogen seems to playa vital role in increasing the proportion of unsaturated fatty acids which is a major factor determining the quality of sunflower oil.
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 6
Claim · model-written summary
Sunflower grain yield showed a significant response to N and P up to 60 kg N and 30 kg P2O5 ha-1 in three years of field experiments.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- N and Pe1
- Outcome
- yield responsee1
- Direction
- increaseinferrede1
- Qualifier
- up to 60 kg N and 30 kg P2O5 ha−1e1
- Setting
- field experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Oil Quality of Sunflower”
e0“In field experiments conducted for three years”
e1“significant yield response to N and P was observed up to 60 kg N and 30 kg P2O5 ha−1”
Claim · model-written summary
N application in the absence of P decreased sunflower seed oil percentage.
- Taxon
- sunflower
Helianthus annuuse2 - Treatment
- N applicatione2
- Outcome
- oil percentagee2
- Direction
- decreasede2
- Qualifier
- in the absence of Pe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“N application, in the absence of P, decreased oil percentage in sunflower seed”
Claim · model-written summary
P application up to 30 kg P2O5 ha-1 significantly increased sunflower oil content.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- P applicatione3
- Outcome
- oil contente3
- Direction
- increasee3
- Qualifier
- up to 30 kg P2O5 ha−1e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Oil Quality of Sunflower”
e3“P application up to 30 kg P2O5 ha−1 resulted in significant increase in oil content”
Claim · model-written summary
N application increased the oleic acid to linoleic acid ratio of sunflower oil, indicating better stability and cooking quality.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- N applicatione4
- Outcome
- Oleic acid: linoleic acid ratioe4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Oil Quality of Sunflower”
e4“Oleic acid: linoleic acid ratio increased due to N application indicating improvement in stability and cooking quality of oil”
Claim · model-written summary
Nitrogen seems to increase the proportion of unsaturated fatty acids in sunflower oil.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- Nitrogene5
- Outcome
- proportion of unsaturated fatty acidse5
- Direction
- increasinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Oil Quality of Sunflower”
e5“Nitrogen seems to playa vital role in increasing the proportion of unsaturated fatty acids”
Claim · model-written summary
Total N and P uptake of sunflower increased significantly with the applied nutrients.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- applied nutrientse6
- Outcome
- Total N and P uptakee6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Oil Quality of Sunflower”
e6“Total N and P uptake also increased significantly with the applied nutrients”
The same questions in other papers
phosphorus · quality: oil · Helianthus annuus (common sunflower)Results differ
20 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
18 papers more in this group
See all 22 papers →nitrogen · quality: oil · Helianthus annuus (common sunflower)Results differ
39 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
47 papers more in this group
See all 51 papers →phosphorus · yield · Helianthus annuus (common sunflower)Results differ
78 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- no effect
77 papers more in this group
See all 81 papers →nitrogen · yield · Helianthus annuus (common sunflower)Positive and negative results
181 papers in the same direction as this paper · 10 in the opposite direction · 4 reporting no difference from an alternative
- positive
- positive
- positive
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.