The first reason is probably that there is too much water, which makes the soil wet for a long time, so that the oxygen content in the soil is low, leading to the root unable to absorb oxygen and nutrients normally, and then the leaves of rich and noble trees will fall. At this time, the solution is to reduce the amount of water, often on the soil treatment, to ensure that the soil to maintain a state of permeability.
The second reason may be the lack of water. When planting rich and valuable trees, if the water is not enough, the soil will be half wet and half dry, which will lead to inadequate absorption of roots and relatively lack of nutrients, resulting in the fall of leaves. At this time, we need to timely water, and spray water mist around, gradually water from less to more, so that it can return to normal state.
The third reason is the problem of fertilizer. If the fertilizer is not applied or replaced for a long time, the nutrient elements in the soil will be lacking, resulting in poor leaf development. We should often change pots of rich and valuable trees to ensure the fresh and fertile soil, and can also apply organic fertilizer on schedule. Fertilization, can not lead to excessive, fertilization is too much also easy to make the leaves of the plant fall off.
The last one is the effect of high temperature. In summer, when the temperature is high, if the light places it outdoors, it is easy to burn the rich and valuable trees, the leaves will turn yellow slowly, and then they will fall, which will affect the beauty. But if you put it in a place without light to grow, it will also cause the leaves to wither and grow powerless due to the lack of sunlight, so you should control the light and put it in the ventilation. Grow under the position of
