棚室（大棚、温室）黄瓜、番茄、茄子、辣椒、菜豆等喜温性蔬菜，常因连绵的秋雨、冬雪低温寡照、春霜等造成冻害，轻者落花，重者死亡。如采取科学管理，会度过难关。其防冻措施如下：（一）增温保温重视天气预报，根据天气动态，主动做好棚室增温保温防冻工作。可采用：①烟 Greenhouses (greenhouses, greenhouses) Cucumber, tomatoes, eggplants, peppers, beans and other warm vegetables, often due to continuous autumn rain, winter snow low temperature sunshine, spring frost and other damage caused by freezing, the light falling, the heavy death. If we adopt scientific management, we will weather the storm. The antifreeze measures are as follows: (a) warming temperature emphasis on weather forecasting, according to the weather dynamic, take the initiative to do a good job greenhouse temperature freezing antifreeze work. Can be used: ① smoke