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防棚室逆温伤幼苗的几项措施

   2015-02-12 356
核心提示:在冬春季节,有时会出现大棚内的气温反而比棚外低的情况,这种现象被称做逆温,常常在午夜前后发生。蔬菜幼苗对此非常敏感,稍不留心就会产生冻害。大棚出现逆温的原因有两个:
       在冬春季节,有时会出现大棚内的气温反而比棚外低的情况,这种现象被称做“逆温”,常常在午夜前后发生。蔬菜幼苗对此非常敏感,稍不留心就会产生冻害。 

 

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