Abstract
Nitrogen(N),phosphorus(P)and potassium(K)are important nutrients for flue-cured tobacco,which play a key role in the formation of yield and quality of the leaves.However,little research was focus on the effects of fertilization on content of aroma constituents in tobacco leaves.In the present paper,a field experiment was employed to study the effects of combining application of N,P and K fertilizers on chemical components and content of aroma constituents in flue-cured tobacco leaves using a tobacco(Nicotiana tabacum L.)cultivar K326.The results indicated that chemical components of tobacco leaves were not harmonious,and content of total aroma constituents and different kinds of aroma constituents were the lowest in the treatment of no fertilizer(CK).Treatments of application of single fertilizer of N,P,K or combining application of any two of them could improve the chemical components and increase the content of aroma constituents of cembranenoids and carotenoids.While the chemical components were more appropriate and the content of total aroma constituents and different kinds of aroma matter were higher in the treatment of combining application of N,P,K fertilizers compared with the other treatments.It suggested that balancing application of N,P,K fertilizers was the foundation for increasing the flavor quality of tobacco leaves.
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Claims 9
Claim · model-written summary
Unfertilized tobacco leaves had unbalanced chemical components.
- Taxon
- tobacco
Nicotiana tabacume0 - Outcome
- chemical components of tobacco leavese0
- Qualifier
- not harmoniouse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chemical components of tobacco leaves were not harmonious,and content of total aroma constituents and different kinds of aroma constituents were the lowest in the treatment of no fertilizer(CK)”
Claim · model-written summary
Total and individual aroma constituent contents were lowest without fertilizer.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- no fertilizer(CK)e0
- Outcome
- content of total aroma constituents and different kinds of aroma constituentse0
- Direction
- loweste0
- Comparator
- application of single fertilizer of N,P,K or combining application of any two of theme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chemical components of tobacco leaves were not harmonious,and content of total aroma constituents and different kinds of aroma constituents were the lowest in the treatment of no fertilizer(CK)”
e1“application of single fertilizer of N,P,K or combining application of any two of them”
Claim · model-written summary
Single N fertilizer improved tobacco chemical components and increased cembranenoid and carotenoid aroma constituents.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- single fertilizer of Ne0
- Outcome
- content of aroma constituents of cembranenoids and carotenoidse0
- Direction
- increasee0
- Comparator
- no fertilizer(CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tobacco”
e0“Treatments of application of single fertilizer of N,P,K or combining application of any two of them could improve the chemical components and increase the content of aroma constituents of cembranenoids and carotenoids”
e1“no fertilizer(CK)”
Claim · model-written summary
Single P fertilizer improved tobacco chemical components and increased cembranenoid and carotenoid aroma constituents.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- single fertilizer of N,Pe0
- Outcome
- content of aroma constituents of cembranenoids and carotenoidse0
- Direction
- increasee0
- Comparator
- no fertilizer(CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tobacco”
e0“Treatments of application of single fertilizer of N,P,K or combining application of any two of them could improve the chemical components and increase the content of aroma constituents of cembranenoids and carotenoids”
e1“no fertilizer(CK)”
Claim · model-written summary
Single K fertilizer improved tobacco chemical components and increased cembranenoid and carotenoid aroma constituents.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- single fertilizer of N,P,Ke0
- Outcome
- content of aroma constituents of cembranenoids and carotenoidse0
- Direction
- increasee0
- Comparator
- no fertilizer(CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tobacco”
e0“Treatments of application of single fertilizer of N,P,K or combining application of any two of them could improve the chemical components and increase the content of aroma constituents of cembranenoids and carotenoids”
e1“no fertilizer(CK)”
Claim · model-written summary
Two-fertilizer combinations improved chemical components and increased cembranenoid and carotenoid aroma constituents.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- combining application of any two of theme0
- Outcome
- content of aroma constituents of cembranenoids and carotenoidse0
- Direction
- increasee0
- Comparator
- no fertilizer(CK)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tobacco”
e0“Treatments of application of single fertilizer of N,P,K or combining application of any two of them could improve the chemical components and increase the content of aroma constituents of cembranenoids and carotenoids”
e1“no fertilizer(CK)”
Claim · model-written summary
Combined N, P and K gave more appropriate chemical components than other treatments.
- Treatment
- combining application of N,P,K fertilizerse0
- Outcome
- chemical componentse0
- Direction
- more appropriatee0
- Comparator
- the other treatmentse0
Not reportedTaxon
Verbatim
e0“the chemical components were more appropriate and the content of total aroma constituents and different kinds of aroma matter were higher in the treatment of combining application of N,P,K fertilizers compared with the other treatments”
Claim · model-written summary
Combined N, P and K yielded higher total and individual aroma contents than other treatments.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- combining application of N,P,K fertilizerse0
- Outcome
- content of total aroma constituents and different kinds of aroma mattere0
- Direction
- highere0
- Comparator
- the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tobacco”
e0“the chemical components were more appropriate and the content of total aroma constituents and different kinds of aroma matter were higher in the treatment of combining application of N,P,K fertilizers compared with the other treatments”
Claim · model-written summary
The authors recommend balanced N, P and K fertilization to improve tobacco flavor quality.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- balancing application of N,P,K fertilizers was the foundation for increasing the flavor quality of tobacco leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“balancing application of N,P,K fertilizers was the foundation for increasing the flavor quality of tobacco leaves”
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phosphorus · quality: phytochemicals · Nicotiana tabacum (tobacco)Results agree
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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.