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日本烟草地膜覆盖栽培从五十年代开始试验、示范,1964年普及推广。当时地膜覆盖栽培是为解决前期低温,后期多雨,使之缩短烟叶生长期,提前收获,稳定产量。目前是采用地膜覆盖改进相应的栽培措施,把成熟期安排在高温季节,并改革烘烤方法,以提高烟叶质量。一、育苗期:此期经历50天左右。据日本研究,烟草的生物学零度是7℃,在10℃左右的气温时覆盖地膜能使土温提高2℃,因此可
Japan tobacco film mulching cultivation from the fifties test, demonstration, popularization in 1964. At that time, plastic film mulching cultivation was to solve the problem of low temperature in early period and rainy period in the late period, which shortened the tobacco growing period, harvested ahead of schedule and stabilized the output. At present, mulching is adopted to improve the corresponding cultivation measures, arrange the ripening period in the hot season, and reform the baking method so as to improve the quality of the tobacco leaf. First, nursery: this period of experience of about 50 days. According to the Japanese study, the biological zero of tobacco is 7 ℃. When the temperature is around 10 ℃, the soil temperature can be increased by 2 ℃. Therefore,