Unverified85% confidenceDecision RuleTime unknown
购买时看粉尘含量：优质园艺珍珠岩过筛除粉，袋底细粉<10%；劣质品粉尘多，浇水后板结堵塞排水，失去透气意义
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85%
Confidence
Long-term
Relevance
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Unverified购买前需确认粉尘率，粉尘多的赤玉土使用前必须过筛冲洗，否则细粉沉积盆底堵塞排水、加速板结；廉价散装货粉尘率普遍偏高76% similarUnverified购买成品颗粒土需确认是否已过筛除尘，未除尘的椰糠椰砖和劣质泥炭含大量粉末，会堵塞盆底孔并降低透气性，上盆前应过筛冲洗73% similarUnverified标注'免洗'的颗粒土指已过筛除粉尘可直接使用，未标注免洗的赤玉/鹿沼土建议使用前过筛去除底部粉末，否则粉尘沉积会堵塞排水70% similarUnverified免洗低粉尘陶粒通常经过筛选和水洗，颗粒规整但价格较高；散装建筑陶粒便宜量大但粉尘多、粒径杂乱，需权衡清洗成本与预算70% similarUnverified牛津布面层容易沾附细碎食物残渣和沙土，抖落不如尼龙绸面干净，清洗时需要用水冲刷，不能机洗69% similar
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