Abstract
In this paper,taken Liaoyan 17 as tested materials,the effects of planting density and K application level on the quality of flue-cured tobacco were studied by using split plot design.The result showed that the POD activity,potassium content,nicotine content,chlorine content,content of aroma components in flue-cured tobacco leaf were subsequently added with the increase of the amount of potash fertilizer in different degrees 80 days after planting,but the amount of potassium fertilizer was too high,the nicotine content would be lower.With the increase of planting density,single-leaf weight,potassium content,chlorine content,browning reaction products and the total amount of aroma components were added in different degrees,but the planting density was too high,the total neutral aroma components would reduce.Treatment A2B2(1.2 m×0.55 m,1000 plants /667m2;potassium fertilizer application dosage:7.23 kg/667m2) had high nicotine content,got the coordination of chemical composition and attained sufficient content of aroma substances.Tobacco planting density with space to 1.2 m× 0.55 m,potash fertilizer application dosage:7.23 kg / 667m2 had the best effect on improving quality of flue-cured tobacco.
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Claims 7
Claim · model-written summary
More potash fertilizer increased leaf POD activity, potassium, nicotine, chlorine, and aroma components 80 days after planting.
- Taxon
- Flue-cured Tobaccot0
- Organ / stage
- tobacco leafe0
- Treatment
- the increase of the amount of potash fertilizere0
- Outcome
- POD activity,potassium content,nicotine content,chlorine content,content of aroma componentse0
- Direction
- addede0
- Qualifier
- 80 days after plantinge0
Not reportedComparator
Verbatim
t0“Flue-cured Tobacco”
e0“the POD activity,potassium content,nicotine content,chlorine content,content of aroma components in flue-cured tobacco leaf were subsequently added with the increase of the amount of potash fertilizer in different degrees 80 days after planting”
Claim · model-written summary
Excess potassium fertilizer lowered nicotine content.
- Taxon
- Flue-cured Tobaccot0
- Treatment
- the amount of potassium fertilizer was too highe0
- Outcome
- nicotine contente0
- Direction
- lowere0
Not reportedComparator
Verbatim
t0“Flue-cured Tobacco”
e0“the amount of potassium fertilizer was too high,the nicotine content would be lower”
Claim · model-written summary
Greater planting density increased single-leaf weight, potassium and chlorine content.
- Taxon
- Flue-cured Tobaccot0
- Treatment
- increase of planting densitye0
- Outcome
- single-leaf weight,potassium content,chlorine contente0
- Direction
- addede0
Not reportedComparator
Verbatim
t0“Flue-cured Tobacco”
e0“With the increase of planting density,single-leaf weight,potassium content,chlorine content,browning reaction products and the total amount of aroma components were added in different degrees”
Claim · model-written summary
Greater planting density increased browning reaction products and total aroma components.
- Taxon
- Flue-cured Tobaccot0
- Treatment
- increase of planting densitye0
- Outcome
- browning reaction products and the total amount of aroma componentse0
- Direction
- addede0
Not reportedComparator
Verbatim
t0“Flue-cured Tobacco”
e0“With the increase of planting density,single-leaf weight,potassium content,chlorine content,browning reaction products and the total amount of aroma components were added in different degrees”
Claim · model-written summary
Excessive planting density reduced total neutral aroma components.
- Taxon
- Flue-cured Tobaccot0
- Treatment
- planting density was too highe0
- Outcome
- total neutral aroma componentse0
- Direction
- reducee0
Not reportedComparator
Verbatim
t0“Flue-cured Tobacco”
e0“the planting density was too high,the total neutral aroma components would reduce”
Claim · model-written summary
Treatment A2B2 had high nicotine, coordinated chemical composition and sufficient aroma substances.
Verbatim
t0“Flue-cured Tobacco”
e0“Treatment A2B2(1.2 m×0.55 m,1000 plants /667m2;potassium fertilizer application dosage:7.23 kg/667m2) had high nicotine content,got the coordination of chemical composition and attained sufficient content of aroma substances”
Claim · model-written summary
The authors recommended 1.2 m× 0.55 m spacing and 7.23 kg / 667m2 potash fertilizer for tobacco quality.
Verbatim
t0“Flue-cured Tobacco”
e0“Tobacco planting density with space to 1.2 m× 0.55 m,potash fertilizer application dosage:7.23 kg / 667m2 had the best effect on improving quality of flue-cured tobacco”
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