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Luoping County, Qujing City, Yunnan important tobacco producing county, the study proven the Luoping regional tobacco leaf characteristics, formation mechanism and further highlight the unique technical measures; of Luoping County 10 towns 210 soil samples, samples of tobacco (B2F and C3F ) as the research object, by field sampling, visual identification, physical properties, chemical analysis, sensory evaluation and mathematical statistics, methods, systems to study the characteristics of soil properties and quality of flue-cured tobacco the Luoping smoke of tobacco. The results are as follows: Rochon, wells, Itabashi, Zhongshan and old housing base most of the five towns tobacco soil at 1300m-1700m altitude, Kowloon, Ma Street, the old factory, Fuller and Argonne five townships in tobacco soil basic in the 1700m-2100m altitude; Rochon wells, Banqiao and Zhongshan four townships tobacco soil organic matter content is relatively low, and the other townships in tobacco soil organic matter content is relatively high. Altitude and soil organic matter content is basically showing a positive correlation. Luoping County Tobacco appearance quality is better overall, better physical characteristics of tobacco leaf length, leaf width, single large leaf weight, stem ratio, equilibrium moisture, filling value and page density medium size, abundant chemical composition of tobacco and smoking The quality is better. The township sensory evaluation showed different characteristics. (1): upper leaves wells flue gas darker, heavier hybrid gas; mainly Ah Kong, Kowloon and of Rochon to clear - in flavor, other township belong; Rochon and the Banqiao Hong temperament high aroma and aftertaste score and score and poor, old factory and the Argonne Hong temperament aroma lower score is lower. (2): larger the central smoke Ye Luoxiong old housing base, the horses Street and Argonne flue gas concentration and momentum; Itabashi, Kowloon, Zhong Shan Ma Street to clear - in scent-based and other towns in the middle of Hong main type; the Zhongshan and Itabashi Hong temperament, high aroma the old plant fragrant temperament poor, aroma lower the irritation score lower. The old plant, the Argonne and old housing base of the flue-cured tobacco sensory quality is relatively poor, Zhongshan, Itabashi, Rochon and Kowloon flue-cured tobacco sensory quality is relatively good. As the altitude increases, the increase in tobacco soil organic matter content, pH, potassium and effectively reduced molybdenum content, the upper leaves total nitrogen, total volatile base nitrogen base than two sugar difference increases, starch, potassium, tobacco boron , reduce tobacco magnesium content, the middle leaves total sugar, reducing sugar content and sugar alkali than nitrogen the alkali ratio increases, nicotine, potassium, total volatile alkali, tobacco sulfur, tobacco magnesium content decreased, the amount of upper leaves aroma and dry reduce the sense of the score, the middle of the amount of tobacco aroma, flavor, dryness score increase. Moderate the overall quality of flue-cured tobacco Rochon, wells, Zhongshan and old housing base four townships, the Banqiao and Kowloon township of flue-cured better overall quality suitable for the main ingredient used in high-grade cigarette smoke. Ma Street, the old factory, Fuller and Argonne four townships of flue-cured tobacco generally of poor quality, poor physical characteristics of the old plant flue-cured tobacco, lower total score of sensory evaluation, the overall quality is relatively worst.
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