什么是培养土?如何配制培养土?
家庭养花多采用盆栽,由于花盆体积小,花卉的根系局限于花盆中生长,因此对土壤的要求比较严格。一般培养土的要求是:物理性状好,即疏松、排水、透气性良好;养分充足,能保水、保肥,满足花卉至少1年的生长需要;适合花卉生长的酸碱度;不含有害的微生物、病虫以及其他有害物质。以下是几种常见的配方,各地亦可根据各地情况选择使用。
适用于菊花、大丽花和一般温室草花等的培养土:用腐叶土30%、塘泥40%、园土30%配制以后,再以上述混合物的70%N砻糠灰30%,加少量骨粉、石灰等混合,使土呈中性。适用于室内观叶植物的基质:用2份泥炭、1份蛭石、1份珍珠岩;或1份泥炭、1份珍珠岩、1份树皮配制而成。
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