怎样让盆栽睡莲多开花?
家庭盆栽睡莲,不仅给人一种清凉、爽朗之感,而且也给环境增添了水乡情趣。最好能安置在露天平台上,用盆栽套缸养或配置小假山的水面作水景用。若无露台,用盆栽放在阳光充足的阳台亦可。盆栽睡莲,一般只要选用肥沃的塘泥、稻田泥,每天8小时以上的全日照环境和长在水深30厘米左右的水中,就能正常开花。开花期近5个月,6~8月为盛花期。若要多开花,应注意以下4个问题:
(1)翻盆换土:每年春分前后,结合分株,翻盆换上,保持土壤肥沃,满足睡莲多开花对养分的需求。

(2)扩大水面:水面小,叶重叠,通风透光不良或叶沿伸盆缘,离水较远易被烈日晒伤,会影响开花,最好盆栽套缸养,每株提供1平方米以上的水面能促进多开花。
(3)增施肥料:盆栽睡莲的肥料,一般只要选用沃土,栽时加些鸡粪、骨粉作基肥就够了。若要促使多开花,可在开花期增施几次以磷、钾为主的追肥。切不可多施氮肥,不然,由于营养生长过盛就会抑制其生殖生长,致使其开花不良或不开花。
(4)防治虫害:睡莲的叶易遭夜盗蛾等食叶害虫的侵害,致使叶面损伤,光合作用降低,势必影响开花或多开花,应及时防治。
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