如何改良花卉土壤的排水、通气性?
花木一般都要在排水、通气良好的土壤条件下生长。这样的环境有利根系生长发育,花木也才能枝繁叶茂,开花不绝。可是在一些土质粘重的地区,花木很难长好,因此常用木屑来改良土壤。
木屑质轻、疏松,孔隙度大,是改良粘质土的良好材料。使用前在木屑中放入一些饼肥或鸡鸭粪,在缸中加水发酵腐熟,以后挖出晾至半干。
在土中掺入1/3的木屑,并均匀进行混合,这样可增加土壤的通透性。经1~2个月,木屑又会被土壤中的好气性细菌分解为腐殖质,从而提高土壤的肥力。同时木屑还能不同程度地中和土壤的酸碱性,大大有利于花木的生长。
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