兰叶与开花好坏有密切关系。除正常的新叶萌芽老叶黄落外,常见的兰叶发黄有这么几种情况,可分别治理:回盆土过湿或过干。久雨或浇水过多会造成盆土缺氧,引起根部腐烂,叶片发黄,应经常松土,控制浇水。由于盆土太满或长时间浇水不透,会导致水分供应不足,叶片老化变黄。应适量补水保持土壤湿润,若气温过高,空气干燥或风力较大,需喷细雾增湿。 Orchid and flowering is closely related to good or bad. In addition to the normal new leaves sprouting yellow leaves old, the yellow leaves are common in several cases, can be treated separately: back to the basin too wet or too dry. Long rain or excessive watering will result in anoxic soil pots, causing root rot, leaves yellow, should often loose soil, control watering. Due to too much potting soil or watering for a long time, it will lead to insufficient water supply and yellowing of the leaves. Should be adequate water to keep the soil moist, if the temperature is too high, the air is dry or windy, need to spray mist humidifier.