1、 Waterlogged rotten roots

Reason: when maintaining citrus, if the soil planted is not well drained, it is easy to cause ponding in the basin soil after watering too much. If its roots are soaked in water for a long time, root rot will occur

Solution: if the root rot is mild, just pay attention to drainage and water control. If the root rot is serious, trim the root rot and replant it after disinfection. The water supply shall be controlled at ordinary times, and there shall be no ponding in the soil

2、 Occurrence of fertilizer damage

Reason: when fertilizing it, if too much fertilizer is applied, or high concentration fertilizer and raw fertilizer are applied, or the amount of fertilizer is too large, the root of citrus will be burned and rot

Solution: the usual incorrect fertilization method should be changed. Thin fertilizer should be applied frequently, and a small amount should be applied every time. At the same time, do not use fertilizer with high concentration. If the amount of fertilizer is large, water more and wash the remaining fertilizer out of the basin

3、 Bacterial infection

Reason: if the root of citrus is infected by bacteria during breeding, the root will rot

Solution: we need to clean up the diseased roots at the first time and disinfect the roots. If conditions permit, we should replace them with new soil for cultivation and breeding