冬季出现连阴、降雨或降雪、降温等恶劣天气时,蔬菜生产将受到不良影响,特别是耐寒性差的黄瓜、番茄、茄子等果菜类,受威胁更大,轻者造成减产、减收,重者整棚冻死而绝产,给生产者造成严重的经济损失。连阴、寡照天气引起的直接后果是日光温室内气温、地温下降,光照不足,空气湿 Vegetable production will be adversely affected when there is livid shade, rainfall or snowfall in winter, and temperature and other adverse weather conditions. Cucumber, tomato, eggplant and other fruits and vegetables, especially those with poor cold tolerance, are more threatened and reduced in production due to heavy losses, The whole apartment froze to death and caused serious economic losses to the producers. The direct consequence caused by the weather of the yin and the juveniles is the temperature in the solar greenhouse, the decrease of the ground temperature, the lack of light, the humidity of the air