盆栽睡莲应注意哪些问题
睡莲为水生植物,喜充足光照,需生活在水中,盆栽或缸栽的睡莲宜置于庭院或天台等光线明亮的地方。种茎不宜栽植过深,以防土壤温度偏低及透气性差而影响生长。不利于春季早发芽。一般茎上的新芽与土面相平或稍埋于土中即可。每年换盆1次,如植株过大,需换更大的花盆,以便提供更大的营养面积。
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换盆可于春分前后进行。以保持土壤肥沃,促其多开花。在夏季高温季节,藻类易滋生,需及时换水并清理已长出的藻类。如土质肥沃,对肥料要求不高,即使不施肥也可开花。如施肥,切忌偏施氮肥,否则营养生长过旺,开花减少或不开花。施肥时应配施磷钾肥,可促进花芽分化。花盆加水的多少可根据不同时期确定。
春季刚进入生长期,温度较低,可少加水,以利土温的提高,有利于植株生长:以后随温度的提高及植株旺盛生长期到来,可提高水位。入冬后。应将花盆移人冷室,只要土壤不结冻即可安全越冬。要注意及时清理残花及残叶。
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