关键词: 农产品流通基础设施, 农产品流通基础设施, 交易费用, 交易效率, 农业生产

Abstract:

In order to demonstrate the smoke characteristics of cigarette made by cured leaf from different planting altitude (1200m-2000m), K326, one of main flue-cured tobacco cultivars in Yunnan province was used to study the characteristics of the cured leaf , by analyzing tar content and other main smoke gas index value in smoke of the cigarette made by the cured leaf, that tar content, nicotine content, total particle material and carbon monoxide content varied greatly in altitude was obtained. By increaseing unit of 200 meter, with tobacco planting altitude was increased gradually from 1,200 to 1,800 meters, tar content, nicotine content, total particle material and carbon monoxide content had a decreasing tendency generally, and which all reached the lowest point by the altitude of 1800 meter. With the altitude continued to 2000 meter, the four smoke gas index were increased, but their value did not reach the level of 1600 meters’. At the altitude of 1800 meters, tar content, nicotine content, total particle material and carbon monoxide content from the cured leaf planted in plains were higher than that planted in mountain areas. So, the industrial usability of the cured leaf from 1800 meter altitude for top quality cigarettes, especial from mountain flue-cured tobacco, was better.