目前,在冬春季节利用日光温室或大棚栽培蔬菜的生产中,其环境均为近似封闭的主靠自然光照增温,塑料薄膜、草帘等保温的一种适宜番茄生长发育的小气候环境。但这种小环境的外界为或大风严寒、或连阴雨雪、或连续晴暖的冬春大气候环境。因此,管理上稍有不当,这种外界环境势必会对温棚内的小气候产生较大的影响而制约番茄的正常生长发育。常见的三种自然灾害有:低温寒害、高温热害、弱光阴害。生产上必须采取措 At present, in the winter and spring seasons using greenhouse or greenhouse cultivation of vegetables, the environment are closed by the main closed by natural light warming, plastic film, straw curtain insulation and so suitable for a small tomato growth and development of the microclimate environment. However, this small environment for the outside world or the gale cold, or even the rain and snow, or continuous sunny winter and spring atmospheric environment. Therefore, the management is a bit wrong, this external environment is bound to have a greater impact on microclimate within the greenhouse to restrict the normal growth and development of tomatoes. Common three kinds of natural disasters are: chilling injury, heat damage, weak light shade harm. Production must take measures