对城市来说,用自来水养花,是比较普遍的事。好在自来水在水厂已经过软化处理,除铁、除锰,故在短期浇用时,似无明显不良影响,故此家庭常常忽略不计。其实,北方城市自来水的水质具微碱性,不但仍有少量钙、镁等成分,而且还含有较多的氯气。如长期不作处理,直接浇用,则其积累作用就会明显地表现出来,使盆土的理化性质发生变化,尤其是对杜鹃、茶花、含笑等喜酸性花卉更为不利,常造成栽培年限短的恶果。 For the city, it is more common to use tap water to raise flowers. Fortunately, tap water has been softened in the water treatment plant, in addition to iron, except manganese, it is poured in the short term, it seems no significant adverse effects, so the family is often negligible. In fact, tap water quality in the northern city is slightly alkaline, not only there is still a small amount of calcium, magnesium and other ingredients, but also contain more chlorine. If not treated for a long time, directly pouring, then its accumulation will be clearly demonstrated, so that changes in the physical and chemical properties of basin soil, especially rhododendron, Camellia, smiling and other hi acidic flowers are more unfavorable, often resulting in short cultivation years The evil consequences.