Abstract
Plot field experiment was carried out to study the effect of excessive fertilization on tobacco growth,development,yield and quality in a paddy field with medium fertility soil in Yuxi city.The results showed that the survival rate of seedling decreases with the increase of fertilizer application.And tobacco growth slows down,plant height and leaf area index reduce at the early stage.But,tobacco grows faster,the inter-node length decreases and stem girth increases at the later period of vigorous growth.The accumulation of dry matter especially over ground part increases,but the leaf yield,high class tobacco ratio and the production value decline significantly after applying certain amount of fertilizer.Besides,the contents of total sugar and reducing sugar decrease,while the contents of total nitrogen and nicotine increase and that of nicotine increases more significantly along with the increase of fertilization.
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Claims 10
Claim · model-written summary
Seedling survival declined as fertilizer application increased.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- fertilizer applicatione0
- Outcome
- survival rate of seedlinge0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“survival rate of seedling decreases with the increase of fertilizer application”
t0“Tobacco”
Claim · model-written summary
Early tobacco growth slowed and height and leaf area index declined with excess fertilizer.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- excessive fertilizatione1
- Outcome
- plant height and leaf area indexe0
- Direction
- reducee0
- Qualifier
- early stagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco growth slows down,plant height and leaf area index reduce at the early stage”
e1“excessive fertilization”
Claim · model-written summary
Tobacco grew faster later in vigorous growth under excess fertilizer.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- excessive fertilizatione1
- Outcome
- tobacco growse0
- Direction
- fastere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco grows faster”
e1“excessive fertilization”
Claim · model-written summary
Later internode length decreased with excess fertilizer.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- excessive fertilizatione1
- Outcome
- inter-node lengthe0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inter-node length decreases and stem girth increases at the later period of vigorous growth”
e1“excessive fertilization”
t0“Tobacco”
Claim · model-written summary
Later stem girth increased with excess fertilizer.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- excessive fertilizatione1
- Outcome
- stem girthe0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inter-node length decreases and stem girth increases at the later period of vigorous growth”
e1“excessive fertilization”
t0“Tobacco”
Claim · model-written summary
Dry matter accumulation increased, particularly aboveground, with excess fertilizer.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- excessive fertilizatione1
- Outcome
- accumulation of dry mattere0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of dry matter especially over ground part increases”
e1“excessive fertilization”
t0“Tobacco”
Claim · model-written summary
Leaf yield, high class ratio and production value declined significantly beyond a fertilizer amount.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- fertilizere0
- Outcome
- leaf yield,high class tobacco ratio and the production valuee0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf yield,high class tobacco ratio and the production value decline significantly after applying certain amount of fertilizer”
Claim · model-written summary
Total and reducing sugars declined with increasing fertilizer.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- fertilizatione1
- Outcome
- contents of total sugar and reducing sugare0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of total sugar and reducing sugar decrease”
e1“increase of fertilization”
t0“Tobacco”
Claim · model-written summary
Total nitrogen content increased with fertilizer.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- fertilizatione1
- Outcome
- contents of total nitrogene0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of total nitrogen and nicotine increase”
e1“increase of fertilization”
t0“Tobacco”
Claim · model-written summary
Nicotine content increased more significantly with fertilization.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- fertilizatione0
- Outcome
- nicotinee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that of nicotine increases more significantly along with the increase of fertilization”
t0“Tobacco”
The same questions in other papers
fertilization · growth · Nicotiana tabacum (tobacco)Positive and negative results
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See all 214 papers →fertilization · survival · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- negative
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.