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要使水养花卉生长繁茂、开花艳丽关键是要选择发育充实的种球以提供其生长过程的养分需要;其次是要勤换水坚持2天～3天换一次水(富贵竹7天～10天换一次水)保持水中充足的含氧量提高根系活性;三是要保持充足的阳光使之健壮生长。
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zhenzhengyoubianhaodeshuipeihuahuizhiwuqigenxidexingzhuangyijingfashenglegaibiangenmaoyituihuaqiedabufenweichuizhishengzhangdezhigenbuxiangshuiyangzhiwudegenhegenmaochengwangzhuangfenbu。jingguoshuishengyoubianhouzhiwudeshuishenggenjiyindedaolebiaodasuoyizhenzhengdeshuishenghuahuizhiwuyepianhuizengda、zenghouyepianhezhitiaobitulishengzhangdegengweixiannen。
水培花卉的关键是要配制好营养液。配制营养液切忌用金属容器或装过油脂、酸碱的容器。使用自来水配制营养液时应加入少量的腐殖酸化合物来处理水中的氯化物和硫化物。水培花卉每星期添加或更换营养液一次注意将pH值控制在5.5～6.5之间。换出的营养液可作为其他作物的肥料。