冬天韭菜适宜生长的温度是多少?

2025-03-26 15:46:51
推荐回答(2个)
回答1:

韭菜是耐寒又适应性广的叶菜类蔬菜,特别是北方韭菜品种,叶片能忍受-4℃---5℃的低温,在-6℃---7℃时叶片枯萎,不同生育阶段对温度要求不同,种籽发芽适温为15--18℃,幼苗期适温为12℃以上,最适宜的生长温度白天为24--26℃,夜间12℃左右。如果超过30℃,植株生长太快,地下茎养分输出太多,抗病性降低,植株变弱,韭菜收割后产品容易萎蔫,高温再遇缺水,还会出现干尖。
韭菜对温度的要求,不同品种存在一定的差异,有的品种耐寒力较强,有的品种较耐高温,另外韭菜对温度的反应也受环境条件的影响,在干燥时,韭菜耐低温能力较低,而在湿润时,忍耐低温的能力相应提高。光照强弱也能改变韭菜对温度的要求,温室冬季生长的韭菜,由于光照较弱,在28--30℃的高温条件下,品质并不降低。

回答2:

韭菜喜欢凉的天气,不喜欢盛夏的炎热,所以从早春到夏天炎热来临时是最好的生长季节。立秋后是最适宜韭菜生长的季节,实际上,冬天快要结束的时候韭菜是最早发芽的植物之一。大雪刚刚退去,大地回春郁金香花出芽的时候,韭菜也就开始出芽了。

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