摘要
双转光地膜能较好地将烟叶色素吸收低的紫外光和绿光转化为红光和蓝光。大田栽培试验表明双转光地膜具有显著增加地温和促进烟株生长的作用。烟垄覆盖双转光地膜可使5cm日平均地温增高1℃，10～15cm日平均地温增高0．8℃，并显著增加烟苗根、茎、叶干重，促进烟苗早生快发，有利于尽早增大光合叶面积。烟叶化学成分分析表明，双转光地膜处理未对烟叶品质产生不良影响。
Dual-sunlight conversion film mulching can convert ultraviolet and green lights, which are less effectively absorbed by tobacco, into red and blue lights. Thus dual-sunlight conversion film mulching can increase soil temperature and promote tobacco growth. Soil temperature can increase by 1℃ in 5cm soil depth and 0.8℃ in 10 - 15cm soil depth. Dual-sunlight conversion film mulching increases dry weights of root,stem and leaf of tobacco seedlings, which stimulates tobacco seedling growth and development and enlarges leaf area for photosynthesis. The use of dual-sunlight conversion film poses no known negative effects on the agronomic traits and chemical constituents of tobacco plants.
出处
《中国生态农业学报》
CAS
CSCD
2008年第1期155-159,共5页
Chinese Journal of Eco-Agriculture
基金
国家自然科学基金项目(20371017)
中国烟草长沙技术中心攻关项目资助
关键词
转光膜
烟草生长
生理特性
地温
叶绿素
光质
Dual-sunlight conversion film, Tobacco growth, Physiological characteristics, Soil temperature, Chlorophyll,Light quality
