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怎樣種洋蔥 如何種洋蔥

  • 生活
  • 2023-04-19 18:22
1、土壤:選擇疏松、肥沃、透氣、排水性好的微酸性土壤,種植前需施入適量的底肥,增加土壤肥力。2、栽種:將洋蔥種子栽種到土壤中,覆蓋一層薄土,適量澆水,待種子發(fā)芽后,就可進(jìn)行追肥。3、管理:等到洋蔥生長出來苗以后,就要注意防治立枯病還有霉病,可食用多菌靈兌水稀釋進(jìn)行噴灑。

  洋蔥的生長習(xí)性

  洋蔥的適應(yīng)能力較強(qiáng),幾乎在所有的土壤上都可以正常的生長,不過由于洋蔥根部的營養(yǎng)吸收能力不強(qiáng),所以最好選擇土質(zhì)肥沃,疏松的土壤,促進(jìn)根部的生長發(fā)育。

  洋蔥對溫度的適應(yīng)性較強(qiáng),種子和鱗莖在3~5℃下可緩慢發(fā)芽,生長適溫幼苗為12~20℃,21~27℃生長最好,溫度過高就會生長衰退,進(jìn)入休眠。

  洋蔥在發(fā)芽期、幼苗生長盛期和鱗莖膨大期應(yīng)供給充足的水分,但在幼苗期和越冬前要控制水分,防止幼苗徒長,遭受凍害。

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