给花浇水过多或过少有哪些害处?
给花浇水过多,可使其徒长,枝叶细弱,花芽分化被抑制,抗寒抗逆能力下降,并且使土壤间隙被水分填满,空气减少,造成植物根部缺氧,使根系的呼吸作用受到抑制,代谢功能降低,吸水、吸肥受阻,叶片发黄,长期如此,甚至可造成根系窒息、腐烂而死亡。
给花浇水过少,轻者枝叶萎蔫不振,重者盆花底部叶片会黄化而干枯、生长停滞、新梢萎缩、叶片色泽变淡、落花落蕾,长期如此,可导致花卉缺水干枯而死。
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