茼蒿生长发育对环境条件的要求有哪些?

2025-03-15 06:22:07
推荐回答(2个)
回答1:

(1)温度

茼蒿属半耐寒蔬菜,喜冷凉温和气候,怕炎热。种子在10℃即发芽,生长适温17~20℃,29℃以上明显表现为叶小而少,质地粗老,能够忍受短期0℃左右的低温。

(2)光照

茼蒿是长日照作物,能耐弱光,高温长日照可引起抽薹开花。在日光温室冬春季栽培时,一般不易发生抽薹。

(3)水分

茼蒿属浅根性蔬菜,生长速度快,单株营养面积小,要求充足的水分供应,土壤需经常保持湿润。

(4)土肥

对土壤要求不甚严格,但以肥沃的壤土,pH5.5~6.8时最适茼蒿生长。

回答2:

茼蒿性喜冷凉,怕炎热,但适应性较广,在10~30℃温度范围内均能生长,以17~20℃为最适温度。29℃以上生长不良,12℃以下生长缓慢,能忍受短期-10~0℃的低温。种子10℃时即能发芽,以15~20℃最适宜。茼蒿是长日照作物,能耐弱光,高温、长日照可引起抽薹。茼蒿属浅根蔬菜,生长迅速,要求充足的肥水供应,应经常保持土壤湿润。对土壤要求不甚严格,但以湿润的沙壤土、pH5.5~6.8最适宜。

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