Abstract
A field experiment was conducted during up to 60 kgha (Table 1). Similar effect of N the winter season of 199 1-92 to study the levels was observed on uptake of N, P and effect of nitrogen and phosphorus K. Application of ,60 kg Nha had fertilization on sunflower (Helianthus significant ~eed-~ield advantage of 24 and annuus L.) at Bhubaneshwar. The soil was 8.5% over 20 and 40 kg Nlha respectively. sandy loam, having total nitrogen 0.03%, The stover yield and the harvest index available phosphorus 16.5 kglha, available showed the similar response to N levels. potassium 155.5 kgha and organic carbon Higher seed and stover yields and the 0.368%, with pH 5.7. The experiment harvest index might be due to more uptake consisting of 3 levels of nitrogen (20,40 and of N, P and K. 60 kgha) and 3 levels of phosphorus (20,40 Application of P significantly increased and 60 kgha) and the control with no N and the dry-matter yieldlplant, seed yield, stover P was laid out in randomized complete- yield and N, P and K uptake. The response block design replicated 3 times. Variety was very good up to 60 kg P20,ha. The seed Morden was used as a test crop. The crop yield obtained at 60 kg P20,iha was 8.5 and was sown on 1 December 1991. A uniform dose of 30 kg 6 O h a along with half dose 3% more than that of 20 and 40 kg P,O,ha of N and full dose of P20, as per treatment respectively. The response was higher up to was applied at sowing and the rest half dose 20 kg than the subsequent higher levels of of was top-dressed at 25 days after PiO,. The P application did not influence sowing. Two irrigations were applied at the harvest index of sunflower, but signifi- bud-devklopment and flowering stages of cantly increased the oil yield. This might be the crop. due to abundance of P in seeds which stimu- Dry-matter accumulation increased lated the formation of filled compact seeds significantly with an increase in level of N and increase in seed number.
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Claims 9
Claim · model-written summary
Increasing nitrogen increased dry-matter accumulation significantly.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- Ne0
- Outcome
- Dry-matter accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry-matter accumulation increased lated the formation of filled compact seeds significantly with an increase in level of N”
t0“sunflower”
Claim · model-written summary
Nitrogen levels similarly affected N, P and K uptake.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Ne0
- Outcome
- uptake of N, Pe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar effect of N the winter season of 199 1-92 to study the levels was observed on uptake of N, P and effect of nitrogen and phosphorus K”
t0“sunflower”
Claim · model-written summary
At 60 kg Nha seed yield exceeded the 20 kg Nlha level by 24%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- ,60 kg Nhae0
- Outcome
- ~eed-~ielde0
- Direction
- advantagee0
- Value
- 24e0
- Comparator
- 20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of ,60 kg Nha had fertilization on sunflower (Helianthus significant ~eed-~ield advantage of 24 and annuus L.) at Bhubaneshwar. The soil was 8.5% over 20 and 40 kg Nlha respectively”
Claim · model-written summary
At 60 kg Nha seed yield exceeded the 40 kg Nlha level by 8.5%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- ,60 kg Nhae0
- Outcome
- ~eed-~ielde0
- Direction
- advantagee0
- Value
- 8.5%e0
- Comparator
- 40 kg Nlhae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of ,60 kg Nha had fertilization on sunflower (Helianthus significant ~eed-~ield advantage of 24 and annuus L.) at Bhubaneshwar. The soil was 8.5% over 20 and 40 kg Nlha respectively”
Claim · model-written summary
Stover yield and harvest index responded similarly to nitrogen levels.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- N levelse0
- Outcome
- stover yield and the harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stover yield and the harvest index available phosphorus 16.5 kglha, available showed the similar response to N levels”
t0“sunflower”
Claim · model-written summary
Phosphorus application significantly increased dry-matter yield per plant, seed yield and stover yield.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Pe0
- Outcome
- dry-matter yieldlplant, seed yield, stovere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of P significantly increased and 60 kgha) and the control with no N and the dry-matter yieldlplant, seed yield, stover P was laid out in randomized complete- yield and N, P and K uptake”
t0“sunflower”
Claim · model-written summary
Phosphorus application significantly increased N, P and K uptake.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Pe0
- Outcome
- N, P and K uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of P significantly increased and 60 kgha) and the control with no N and the dry-matter yieldlplant, seed yield, stover P was laid out in randomized complete- yield and N, P and K uptake”
t0“sunflower”
Claim · model-written summary
Phosphorus did not influence sunflower harvest index.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- P applicatione0
- Outcome
- harvest indexe0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P application did not influence sowing. Two irrigations were applied at the harvest index of sunflower”
Claim · model-written summary
Phosphorus significantly increased oil yield.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- P applicatione1
- Outcome
- oil yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“signifi- bud-devklopment and flowering stages of cantly increased the oil yield”
t0“sunflower”
e1“The P application did not influence”
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See all 22 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
- negative
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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.