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大棚蔬菜秧苗移栽,正值寒冷季节,栽后低温便成了秧苗的天敌。棚农采用的防寒措施,一般是用炉火、反光膜、双层膜等。除此以外,还有一种新的方法,就是利用黑色物体吸光能力强的特点,来增加棚内温度,使秧苗免受冻害,并加速其生长。
Greenhouse vegetable seedlings transplanted, coincided with the cold season, transplanting low temperature has become a natural enemy of seedlings. Peasant farmers use cold measures, usually with fire, reflective film, double film and so on. In addition, there is a new way to increase the temperature inside the shed by using the light-absorbing ability of black objects to protect the seedlings from frost damage and accelerate their growth.