Unverified85% confidenceDecision RuleTime unknown
多肉、球根类植物铺面建议选3-6mm粒径，既能透气又不易被浇水冲散；播种育苗或小盆栽用1-3mm细颗粒，大型盆栽或土壤打底可用6-9mm粗颗粒
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Unverified粒径选择按盆径匹配：小粒（1-3mm）用于播种育苗和小盆细根植物，中粒（3-6mm）适合多肉和常规盆栽做主基质，大粒（6-12mm）用于盆底铺排水层或大型盆景，混用可兼顾透气与保水93% similarUnverified颗粒粒径3-6mm适合大多数中大型盆栽做排水层与拌土，1-3mm小颗粒适合多肉铺面与小苗，＜1mm的粉末应筛除，否则会堵塞孔隙降低透气性90% similarUnverified园艺育苗用珍珠岩选3-5mm细颗粒，扦插和多肉配土用5-8mm中颗粒，大棚基质栽培可用8-12mm粗颗粒以增强排水84% similarUnverified颗粒粒径建议2-6mm为主，小苗和播种用1-3mm细颗粒，成株用3-6mm；粒径过大（>8mm）保水太差导致频繁缺水83% similarUnverified园艺用珍珠岩优选3-6mm粒径，兼顾透气排水与保水；播种育苗用1-3mm细粒；无土栽培基质或多肉铺面可用6mm以上大颗粒83% similar
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