盆花脱水如何挽救?
盆花脱水是由于人为疏忽没有浇水或气温高、空气湿度小等原因,使花卉枝叶萎蔫不振,盆土干燥。这时应先将盆花移至蔽荫处,浇少量水,并向盆花周围地面及枝干、叶面喷水,量不宜过大,使其植物细胞逐渐恢复正常的吸水状态后,再逐渐加大浇水量,给予充足的水分。
盆花脱水时,注意不要立即大量浇水。因花卉失水后其根部毛细器官受到损伤,吸水能力降低。大量浇水后,产生细胞壁吸水过多,而原生质吸水少且速度慢,从而造成质壁分离,原生质生理功能损伤,严重时易导致死亡。只有在花卉根部毛细管吸水功能恢复以后,才能加大供水量。
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