The relationship between maturity and aroma quality was studied using flue-cured tobacco leaves in Henan.
以河南产烤烟为试材，研究了烤烟烟叶成熟度与香气质量关系。
This research provide the foundation for shortening the time of aging and improving the internal quality of flue-cured tobacco leaves.
本研究为进行烤烟人工陈化以缩短烤烟自然陈化周期、改善烟叶内在品质奠定了基础。
The relationship between the amino acid content in flue-cured tobacco leaves and the flavor quality was studied by Correspondence Factor Analysis (CFA).
利用对应因子法对不同等级烟叶中氨基酸含量与香吃味的关系进行了探索。
The results showed that the reducing sugar content in flue-cured tobacco leaves decreased, but the total nitrogen and nicotine contents increased under drought stress.
结果表明，在干旱胁迫下烤烟叶片还原糖含量下降，总氮和烟碱含量升高，烟叶中主要香气物质含量减少，品质下降。
Some important neutral flavor constituents and routine constituents of Henan flue-cured tobacco leaves from different mature and different stalk position were analyzed.
对中部和上部不同成熟度河南烤烟烟叶中的多种重要中性香味成分和常规成分进行了分析研究。
The effects of double-row concave ridge and film mulching on phosphorus content in flue-cured tobacco leaves and soils were studied by field and laboratory experiments.
采用田间试验与室内分析相结合的方法，探讨了烤烟地膜覆盖与双行凹型垄结合对烤烟及土壤磷素含量的影响。
Field experiment was conducted to study the effect of different supplying styles of potassium fertilizer on potassium content in flue-cured tobacco leaves and the methods to increase the content.
通过大田试验，研究了不同供钾方式对烟叶含钾量的影响及提高石灰性土壤上烤烟含钾量的可能途径。结果表明，施钾能显著提高烟叶产量，其中以粉肥结合喷优丰处理效果最好。
By testing the tar and smoking nicotine of tobacco leaves of flue-cured tobacco 40 grading standard, a set of complete analytical data have been got.
通过对烤烟（40级）各等级烟叶焦油含量和烟气烟碱的测定，取得了一套较为完整的分析数据。
The changes of leaf ratio of dry to fresh weight in flue-cured tobacco green leaves during the field growth were studied.
田间状况下对烤烟下、中、上三个部位叶片生长发育过程中叶片干鲜比值的变化进行了研究。
Effects of different picking methods on chemical composition and content of volatile aromatic matter of upper leaves in flue-cured tobacco were studied.
研究了不同采收方式对烤烟上部烟叶化学成分和主要挥发性香气物质含量的影响。
Overview: The Division flower extract flue-cured tobacco production mainly in Hunan tobacco leaves.
概述：本司烤烟花蕾浸膏主要采用湖南产的烤烟叶。
The content of tobacco leaf nicotine and smoking nicotine of40 grades leaves of he nan flue - cured tobacco is determined.
测定了河南烤烟(40级)各等级烟叶的烟碱含量和烟气烟碱传输量。
Nitrate and nitrite contents could be decreased for middle but increased for uppers in flue cured tobacco leaves by applying different organic manures.
施用不同的有机肥，对降低烤酒中部叶片硝态氮含量有一定作用，但上部叶的硝态氮含量有所提高。
Nitrate and nitrite contents could be decreased for middle but increased for uppers in flue cured tobacco leaves by applying different organic manures.
施用不同的有机肥，对降低烤酒中部叶片硝态氮含量有一定作用，但上部叶的硝态氮含量有所提高。
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