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华北地区的严冬和早春季节，日光温室草莓经常受寒流袭击，有时可使温室温度降至2-3℃．由于草莓开花结果期的最低临界温度为5℃，低于5℃时就会影响授粉、受精，不结果或结畸形果，从而降低产量、品质和经济效益．为谋求解决这一问题，近年来冀东地区群众摸索出一套对温室草莓
In winter and early spring in North China, strawberries are often attacked by cold spells in the sunlight greenhouse, sometimes reducing the greenhouse temperature to 2-3 ° C. Since the lowest critical temperature of strawberry flowering fruiting stage is 5 ° C, it will affect pollination, fertilization, fruitlessness or deformity below 5 ° C, thus reducing yield, quality and economic benefits. In an effort to solve this problem, in recent years, the masses in the eastern part of Jidong have come up with a set of measures for greenhouse strawberry