天气预报 > 其他 > 大棚豆角幼苗多少度会被冻坏
大棚豆角幼苗多少度会被冻坏
更新时间: 2020-10-02 00:00:00  

大棚豆角幼苗在0摄氏度时生长全部停止并受冻害。

豆角喜温暖,既不耐高温又不耐霜冻。幼苗生育适温为18到20摄氏度,10摄氏度以下生长受阻,营养期生长的温度范围为10到25摄氏度,18到20摄氏度最适宜,在0摄氏度时生长全部停止并受冻害。豆角花芽分化时温度的要求较严,最适宜的温度为20到25摄氏度,高于27摄氏度或低于15摄氏度容易出现不完全花,落花落荚严重等现象,9摄氏度以下不能分化。

关键词: 大棚 豆角 幼苗 多少

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