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米兰在养护中有时会发生叶片发黄甚至脱落现象,使观赏价值部分或全部丧失,严重者还会逐渐萎蔫死亡,为什么会出现叶黄或落叶呢?又如何预防呢? 1.盆上或浇灌用水的含碱量大,米兰原产南方土壤酸性大的地区,碱性大则不能适应,可在施肥或浇水时加入1％的硫酸亚铁,既增加铁元素,促使叶绿素合成,又增强土壤的酸性,利于米兰的生长。
Sometimes in Milan during the conservation of yellow leaves or even shedding phenomenon, the ornamental value of some or all of the loss, in severe cases will gradually wilt death, why there will be yellow leaves or leaves it? How to prevent it? 1. Basin or watering The alkali content of water is large. In the area where the acidity of southern soil originated in Milan is large, the alkalinity is not suitable for large area. When 1% ferrous sulfate is added during fertilization or watering, it can increase both iron and chlorophyll synthesis and enhance The acidity of the soil is good for Milan’s growth.