在莳养花卉过程中,常会发现花叶的变异现象,如变黄、干焦、皱缩、脱落等,此时不可盲目加大肥水,以免出现误诊。在此,笔者介绍几点诊断方法。一是嫩叶变黄主要是因水多造成的。由于浇水过多,盆土长期积水缺氧,致使根系腐烂。受害后,嫩叶先变成淡黄色,而后老叶也逐渐出现暗黄色。 Growing flowers in the process of planting, often find the phenomenon of mosaic variation, such as yellowing, dry coke, shrinkage, fall off, then you can not blindly increase fertilizer, so as to avoid misdiagnosis. Here, I introduce a few diagnostic methods. First, the yellowing of young leaves is mainly caused by water. Due to excessive watering, basin water long-term hydrological hypoxia, resulting in root decay. Victims, the first leaves into pale yellow, and then the old leaves are gradually dark yellow.