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为了解决地膜覆盖下烟苗移栽后人工开孔破膜费工耗时和破膜不及时导致的高温高湿蒸苗、烟苗成活率低、烟苗素质差等问题,进行了预打孔白色地膜在烤烟生产上的应用试验。结果显示:与不打孔地膜覆盖比较,楚雄中低海拔烟区膜下烟草移栽配套使用打孔2~3 cm的白色地膜覆盖,移栽至掏苗前14:00时降低膜内温度6℃~13℃,移栽后15 d烟苗成活率提高4.7~7.7百分点,大田生育期缩短9~14 d;烟株早生快发,生长势强,病害发病率低,减少人工破膜开口用工0.5个;烟叶产量和产值分别增加168.90~300.45 kg/hm~2、3 244.95~6 517.50元/hm~2,经济效益明显。
In order to solve the problem of artificial insects, such as laborious opening of the perforated membrane after artificial mulching with plastic film mulching, and high-temperature high-humidity steaming seedlings, low survival rate of tobacco seedlings and poor quality of tobacco seedlings, pre-drilling Application Experiment of White Film in Flue - cured Tobacco Production. The results showed that compared with the non-perforated plastic film mulching, the film mulching with 2 ~ 3 cm perforation was used for the tobacco transplanting in the middle and low altitude areas of Chuxiong, The survival rate of tobacco seedlings increased by 4.7 ~ 7.7 percentage points after 15 days of transplanting, and the growth period of the field was shortened by 9 ~ 14 days. The tobacco plants developed quickly and quickly, the growth potential was strong, the incidence of diseases was low, and the number of artificial rupture openings was reduced 0.5; the output and output value of tobacco increased 168.90 ~ 300.45 kg / hm ~ 2,3444.95 ~ 6 517.50 yuan / hm ~ 2, respectively, with obvious economic benefits.