Abstract
[Objective] The fertilization of the different nitrogen forms affecting of fertilizer and the flue-cured tobacco growth and the quality of its middle-positioned leaf was studied to optimize the agricultural production and ensure the tobacco leaf quality.[Method] The difference in the growth and economic traits of flue-cured tobacco variety,Yunyan 85 as experimental material,and the quality of its middle-positioned leaf after its baking,which was resulted from the application of different nitrogen forms and its fertilization measures,was evaluated.[Results] The fertilization combined with intertillage was advantage for the flue-cured tobacco growth.The application of NO-3-N was helpful the early growth and rapid development of the flue-cured tobacco after the plastic film was removed,however in later period its growth was not as good as the tobacco plant treated with NH+4-N and the physical characteristics of its middle-positioned leaf from both two treatments was undesirable.The nitrogen-using efficiency of the tobacco plant treated with NH+4-N was stronger with higher content of nicotine,but the absorption of plant to K was inhibited because of its unique chemical property,leading to the inconsistent chemical composition in plant.[Conclusion] The reasonable application of the combination of NH+4-N and NO-3-N could promote the best tobacco plant growth with the consistent chemical composition in the plant and the highest economic value.
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Claims 11
Claim · model-written summary
Fertilization combined with intertillage favored tobacco growth.
- Taxon
- flue-cured tobaccoe0
- Treatment
- fertilization combined with intertillagee0
- Outcome
- flue-cured tobacco growthe0
- Direction
- advantagee0
Not reportedComparator
Verbatim
e0“The fertilization combined with intertillage was advantage for the flue-cured tobacco growth”
Claim · model-written summary
Nitrate nitrogen favored early tobacco growth after film removal.
- Taxon
- flue-cured tobaccoe0
- Treatment
- NO-3-Ne0
- Outcome
- early growth and rapid developmente0
- Direction
- helpfule0
- Qualifier
- after the plastic film was removede0
Not reportedComparator
Verbatim
e0“The application of NO-3-N was helpful the early growth and rapid development of the flue-cured tobacco after the plastic film was removed”
Claim · model-written summary
Later growth with nitrate nitrogen was poorer than with ammonium nitrogen.
Verbatim
e0“in later period its growth was not as good as the tobacco plant treated with NH+4-N”
e1“The application of NO-3-N was helpful the early growth and rapid development of the flue-cured tobacco”
Claim · model-written summary
Middle-position leaf physical characteristics were undesirable under both nitrogen forms.
Verbatim
e0“the physical characteristics of its middle-positioned leaf from both two treatments was undesirable”
e1“The application of NO-3-N was helpful the early growth and rapid development of the flue-cured tobacco after the plastic film was removed,however in later period its growth was not as good as the tobacco plant treated with NH+4-N”
Claim · model-written summary
Ammonium nitrogen improved tobacco nitrogen-use efficiency.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- NH+4-Ne0
- Outcome
- nitrogen-using efficiencye0
- Direction
- strongere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen-using efficiency of the tobacco plant treated with NH+4-N was stronger”
Claim · model-written summary
Ammonium nitrogen treatment yielded higher nicotine content.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- NH+4-Ne0
- Outcome
- content of nicotinee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen-using efficiency of the tobacco plant treated with NH+4-N was stronger with higher content of nicotine”
Claim · model-written summary
Ammonium nitrogen inhibited potassium absorption by tobacco.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- NH+4-Ne1
- Outcome
- absorption of plant to Ke0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the absorption of plant to K was inhibited because of its unique chemical property”
e1“The nitrogen-using efficiency of the tobacco plant treated with NH+4-N was stronger”
Claim · model-written summary
Ammonium nitrogen led to inconsistent plant chemical composition.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- NH+4-Ne1
- Outcome
- inconsistent chemical composition in plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leading to the inconsistent chemical composition in plant”
e1“The nitrogen-using efficiency of the tobacco plant treated with NH+4-N was stronger”
Claim · model-written summary
Combined ammonium and nitrate nitrogen promoted the best tobacco growth.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- combination of NH+4-N and NO-3-Ne0
- Outcome
- tobacco plant growthe0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reasonable application of the combination of NH+4-N and NO-3-N could promote the best tobacco plant growth”
Claim · model-written summary
Combined nitrogen forms could produce consistent tobacco chemical composition.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- combination of NH+4-N and NO-3-Ne0
- Outcome
- consistent chemical composition in the plante0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reasonable application of the combination of NH+4-N and NO-3-N could promote the best tobacco plant growth with the consistent chemical composition in the plant”
Claim · model-written summary
Combined nitrogen forms could yield the highest economic value.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- combination of NH+4-N and NO-3-Ne0
- Outcome
- economic valuee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reasonable application of the combination of NH+4-N and NO-3-N could promote the best tobacco plant growth with the consistent chemical composition in the plant and the highest economic value”
The same questions in other papers
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3 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
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See all 7 papers →fertilization · growth · Nicotiana tabacum (tobacco)Positive and negative results
153 papers in the same direction as this paper · 27 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
178 papers more in this group
See all 182 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.