Abstract
The study was to evaluate the effect of different applications of potassium fertilizer on the quality of flue-cured tobacco leaves through pot experiment.The results showed that basal potassium fertilizer increased the contents of potassium content,reducible sugar,and total sugar in tobacco leaves,and decreased the contents of nicotine and total nitrogen.Foliar application of potassium fertilizer reduced the chlorophyll content of tobacco leaves,as well as the contents of nicotine and total nitrogen in the treatments of middle-and high-level basal potassium fertilizer.Besides,the quality of tobacco leaves was improved by balanced potassium content of different layer leaves and optimized components of flue-cured tobacco leaves.Both foliar and basal application of potassium fertilizer influenced the various chemical components of tobacco leaves.The experiment proved that applying the basal potassium fertilizer alone did not make significant increase of potassium content in tobacco leaves.However,combination application of basal and foliar potassium fertilizer improved the comprehensive quality of tobacco obviously,of which,the treatment of middle level of basal potassium fertilizer combined with 0.2 mol/L potassium(1/2K2SO4) foliar application produced the best results.
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Claims 8
Claim · model-written summary
Basal potassium increased leaf potassium, reducing sugar and total sugar content.
- Taxon
- tobacco
Nicotiana tabacume0 - Organ / stage
- leavese0
- Treatment
- basal potassium fertilizere0
- Outcome
- potassium content,reducible sugar,and total sugare0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“basal potassium fertilizer increased the contents of potassium content,reducible sugar,and total sugar in tobacco leaves”
Claim · model-written summary
Basal potassium decreased leaf nicotine and total nitrogen content.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leavese0
- Treatment
- basal potassium fertilizere0
- Outcome
- nicotine and total nitrogene0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“basal potassium fertilizer increased the contents of potassium content,reducible sugar,and total sugar in tobacco leaves,and decreased the contents of nicotine and total nitrogen”
Claim · model-written summary
Foliar potassium reduced tobacco leaf chlorophyll.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leavese0
- Treatment
- Foliar application of potassium fertilizere0
- Outcome
- chlorophyll contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of potassium fertilizer reduced the chlorophyll content of tobacco leaves”
Claim · model-written summary
Foliar potassium reduced nicotine and total nitrogen at middle and high basal potassium levels.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Foliar application of potassium fertilizere0
- Outcome
- nicotine and total nitrogene0
- Direction
- reducede0
- Qualifier
- middle-and high-level basal potassium fertilizere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of potassium fertilizer reduced the chlorophyll content of tobacco leaves,as well as the contents of nicotine and total nitrogen in the treatments of middle-and high-level basal potassium fertilizer.”
Claim · model-written summary
Balanced potassium among leaf layers and optimized components improved leaf quality.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- quality of tobacco leavese0
- Qualifier
- balanced potassium content of different layer leaves and optimized components of flue-cured tobacco leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the quality of tobacco leaves was improved by balanced potassium content of different layer leaves and optimized components of flue-cured tobacco leaves”
Claim · model-written summary
Basal potassium alone did not significantly increase tobacco leaf potassium.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leavese0
- Treatment
- basal potassium fertilizer alonee0
- Outcome
- potassium contente0
- Direction
- did not make significant increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying the basal potassium fertilizer alone did not make significant increase of potassium content in tobacco leaves”
Claim · model-written summary
Combined basal and foliar potassium improved overall tobacco quality.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- combination application of basal and foliar potassium fertilizere0
- Outcome
- comprehensive qualitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination application of basal and foliar potassium fertilizer improved the comprehensive quality of tobacco obviously”
Claim · model-written summary
Middle basal potassium plus 0.2 mol/L foliar potassium gave the best result.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- middle level of basal potassium fertilizer combined with 0.2 mol/L potassium(1/2K2SO4) foliar applicatione0
- Outcome
- best resultse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of middle level of basal potassium fertilizer combined with 0.2 mol/L potassium(1/2K2SO4) foliar application produced the best results”
t0“Tobacco”
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