Excessive moisture
The first reason is likely to be that too much water makes the soil moist for a long time, which leads to low oxygen content in the soil, resulting in the failure of the roots to absorb oxygen and nutrients normally, and then the leaves of rich trees will fall. At this time, the solution is to reduce the amount of watering and often treat the soil to ensure that the soil remains breathable and permeable p>
Insufficient water
The second reason may be the lack of water. When planting rich trees, if the water is not enough, the soil will be half wet and half dry, which will lead to insufficient absorption of roots and lack of nutrients, resulting in leaf falling. At this time, it is necessary to water in time, spray water mist around, and gradually water from less to more to make it return to normal state p>
Undernutrition or excess
The third reason is the problem of fertilizer. If it is not fertilized or changed for a long time, the nutrient elements in the soil will be lacking, resulting in poor leaf development. We should often change the pots of rich and noble trees to ensure that the soil is fresh and fertile. We can also apply organic fertilizer on schedule. When fertilizing, it can not lead to excessive fertilization. Too much fertilization is also easy to make the leaves of the plant fall off p>
High temperature
The last one is the impact of high temperature. In summer, the temperature is high. If light is placed outdoors, it is easy to sunburn the rich trees, and the leaves will slowly turn yellow, and then fall down, affecting the beauty. However, if you grow in a place without light, the leaves will also wither and grow powerless because you can't absorb the sun. Therefore, you should control the light and grow in a ventilated place p>