Multi-index Fuzzy Evaluation for Effects of Tobacco Structure Optimization on Physical Properties of Flue-cured Tobacco

In order to identify the optimum number and period of removing the field inapplicability and fresh leaves, the method of fuzzy analysis and the 4-indexes orthogonal test for number of removing lower tobacco leaves, period of removing lower tobacco leaves, number of removing topping tobacco leaves, period of removing topping tobacco leaves were employed to study the influence of removing the field inapplicability and fresh leaves on physical properties of flue-cured tobacco. The results showed that the number of removing the lower leaves was the key factor for physical properties of flue-cured tobacco. The optimal model of structure optimization of flue-cured tobacco in Shaoyang was removing 2 lower tobacco leaves at the time of tobacco topping and removing 1 top tobacco leaves at the time of the first roast from the bottom. The physical properties index calculated with exponential weighting form and normalization processing of physical properties of flue-cured tobacco used comprehensive result measuring could simplified complex problems on finding optimal combination.