海拔高度对陆良烤烟物理特性和化学品质的影响

Effect of Altitude on Physical Properties and Chemical Quality of Flue-Cured Tobacco in Luliang

为了研究云南烟区海拔高度对烤烟品质的影响,采用定位种植、取样的方法,研究了不同海拔陆良烟区烤烟的基本理化性质。结果表明：1 900~2 000 m海拔区间上部叶和下部叶氯含量最低,中部叶氯含量适中,氮碱比中部叶最低,上部叶和下部叶氮碱比含量适中,糖碱比为上部叶最低,中部叶和下部叶糖碱比含量适中;2 000~2 100 m海拔区间的总糖、还原糖含量最高,但1 900~2 000 m海拔区间的总糖、还原糖含量最低,并呈现出随海拔的上升总糖、还原糖逐渐递增的趋势。在陆良县1 800 m以上的海拔条件下,海拔高度与氮、烟碱、钾呈负相关关系,与还原糖、总糖呈正相关关系。

In order to study the effect of altitude on the quality of flue cured tobacco in Yunnan tobacco growing area, the basic physical and chemical properties of flue-cured tobacco in different altitudes were studied by using the method of location and sampling. The results showed that 1 900-2 000 m altitude range upper leaves and lower leaves chlorine content lowest, middle leaf chloride content was moderate, nitrogen base than middle leaves lowest upper leaves and lower leaf nitrogen to nicotine than moderate content, sugar, alkali ratio of upper leaves lowest middle leaves and lower leaves of sugar to nicotine than moderate content; 2 000-2 100 m elevation range of total sugar, reducing sugar content was the highest, but 1 900-2 000 m altitude range of total sugar, reducing sugar content lowest, and presented with the altitude increasing total sugar, reducing sugar gradually increasing trend. In Luliang County 1 800 m above the altitude and elevation was negatively correlated with the consent of nitrogen,nicotine and potassium, but there was positive correlation with the consent of sugar and total sugar.