优化烟叶结构措施对烤烟物理特性影响的多指标模糊评价

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

为明确不适用鲜烟叶田间最佳摘除数量和时期,采用下部叶摘除片数和时期、顶叶摘除片数和时期等4因素L9(34)正交试验和多指标模糊分析方法,研究了不适用鲜烟叶的田间消除处理方法对烤烟物理特性的影响。结果表明:优化烟叶结构后,烤烟单叶重、含梗率、叶质重和平衡含水率增加;影响烤烟物理特性的主要因素是摘除下部叶片数;邵阳烟区稻田烤烟优化烟叶结构以打顶时摘除下部2片烟叶和倒数第1炉时摘除顶部烟叶1片为最佳。采用效果测度模型对烤烟物理特性指标进行归一化处理和加权指数和法计算物理特性指数,寻找最优组合,使复杂问题简化。

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.