倒苗是蔬菜育苗过程中的重要技术环节。前些年,辣椒倒苗后需经五、六天的缓苗期,有时还会出现萎蔫、黄叶、落叶的现象,影响了幼苗的正常生长。为了缩短缓苗期,我区从1983年开始推广覆盖薄膜促进缓苗的技术。1984年全区已有100多个村在生产中应用,倒苗面积200多亩。通过苗床覆膜,明显地提高了移植床的土温、气温和膜内空气湿度,保持了幼苗吸水与蒸腾的平衡关系,基本避免了萎蔫现象,提高了秧苗质量。 Inverted seedlings is an important technical process of vegetable seedling. A few years ago, the hot pepper down after five or six days Huanmiao period, and sometimes wilting, yellow leaves, deciduous phenomenon, affecting the normal growth of seedlings. In order to shorten the Huanmiao period, our district since 1983 to promote the cover film to promote Huanmiao technology. In 1984, more than 100 villages in the region have applied in production and the area of ​​inverted miao is more than 200 mu. By covering the seedbed, the soil temperature, air temperature and air humidity in the transplant bed were obviously increased, the balance between water absorption and transpiration of the seedling was maintained, the wilting phenomenon was basically avoided, and the quality of the seedling was improved.