Abstract
This study was undertaken to optimize macronutrient requirement of hybrid sunflower for harvesting maximum yield and oil content in irrigated condition. For this purpose a field experiment was conducted at Oilseed Research Station, Tindivanam, Tamil Nadu Agricultural University. Experiment comprised of macronutrient treatments consisted of five levels of nitrogen (0, 30, 60, 90 and 120 kg N ha -1 ), four levels of phosphorus (0, 30, 60 and 90 kg P 2 O 5 ha -1 ) and four levels of potassium (0, 30, 60 and 90 kg K 2 O ha -1 ). Increasing levels of N, P, K increased yield, yield components and oil content. Maximum seed yield (1170 kg ha -1 ) and oil content (41.4 %) was recorded with NPK @ 120:90:90 kg ha -1 (T 7 ). Treatment T 7 proved its superiority by recording 12.5 per cent increased seed yield and 13.1 per cent increased oil yield over recommended dose of fertilizers (T 10 ) i.e. NPK @ 60:90:60 kg ha -1 . Hence NPK @ 120:90:90 kg ha -1 (T 7 ) was observed most suitable to obtain maximum quantitative and qualitative yield of hybrid sunflower under irrigated condition.
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 7
Claim · model-written summary
Increasing N, P and K increased sunflower yield and yield components.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- Increasing levels of N, P, Ke0
- Outcome
- yield, yield componentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid sunflower”
e0“Increasing levels of N, P, K increased yield, yield components and oil content.”
Claim · model-written summary
Increasing N, P and K increased sunflower oil content.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Increasing levels of N, P, Ke0
- Outcome
- oil contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid sunflower”
e0“Increasing levels of N, P, K increased yield, yield components and oil content.”
Claim · model-written summary
NPK 120:90:90 kg ha -1 produced maximum seed yield of 1170 kg ha -1.
Not reportedTaxonComparator
Verbatim
e0“Maximum seed yield (1170 kg ha -1 ) and oil content (41.4 %) was recorded with NPK @ 120:90:90 kg ha -1 (T 7 ).”
Claim · model-written summary
NPK 120:90:90 kg ha -1 produced 41.4% oil content.
Not reportedTaxonComparator
Verbatim
e0“Maximum seed yield (1170 kg ha -1 ) and oil content (41.4 %) was recorded with NPK @ 120:90:90 kg ha -1 (T 7 ).”
Claim · model-written summary
T7 increased seed yield 12.5 per cent above recommended fertilizer dose.
- Treatment
- Treatment T 7e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 12.5 per cente0
- Comparator
- recommended dose of fertilizers (T 10 )e0
Not reportedTaxon
Verbatim
e0“Treatment T 7 proved its superiority by recording 12.5 per cent increased seed yield and 13.1 per cent increased oil yield over recommended dose of fertilizers (T 10 ) i.e. NPK @ 60:90:60 kg ha -1 .”
Claim · model-written summary
T7 increased oil yield 13.1 per cent above recommended fertilizer dose.
- Treatment
- Treatment T 7e0
- Outcome
- oil yielde0
- Direction
- increasede0
- Value
- 13.1 per cente0
- Comparator
- recommended dose of fertilizers (T 10 )e0
Not reportedTaxon
Verbatim
e0“Treatment T 7 proved its superiority by recording 12.5 per cent increased seed yield and 13.1 per cent increased oil yield over recommended dose of fertilizers (T 10 ) i.e. NPK @ 60:90:60 kg ha -1 .”
Claim · model-written summary
Authors deem NPK 120:90:90 kg ha -1 most suitable for irrigated sunflower yield.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- NPK @ 120:90:90 kg ha -1e0
- Qualifier
- under irrigated conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK @ 120:90:90 kg ha -1 (T 7 ) was observed most suitable to obtain maximum quantitative and qualitative yield of hybrid sunflower under irrigated condition.”
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 →fertilization · quality: oil · Helianthus annuus (common sunflower)Results differ
75 papers in the same direction as this paper · 13 in the opposite direction
- positive
- no effect
- negative
85 papers more in this group
See all 89 papers →potassium · yield · Helianthus annuus (common sunflower)Positive and negative results
47 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
47 papers more in this group
See all 51 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
- negative
- no effect
192 papers more in this group
See all 196 papers →fertilization · yield · Helianthus annuus (common sunflower)Positive and negative results
343 papers in the same direction as this paper · 18 in the opposite direction · 3 reporting no difference from an alternative
- positive
- no effect
- no effect
361 papers more in this group
See all 365 papers →potassium · quality: oil · Helianthus annuus (common sunflower)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 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.