What causes root rot in clivia?

Root rot is a common condition in clivia. What causes root rot in clivia?
First, a high-temperature environment with too much water: watering heavily for a long time keeps the roots soaking in water for extended periods, causing oxygen deprivation and leading to root rot.
Second, fertilizer burn: when the concentration of liquid fertilizer is too high or too much solid fertilizer is applied, the roots are burned and rot.
Third, not repotting or changing the soil for a long time, which makes the soil compact and impermeable, leading to root rot.
Fourth, after prolonged drought dries out the roots, watering too much causes the root system to decay.
Fifth, using raw soil, or unrotted leaves that ferment in the pot and generate heat that burns the root system, or poor soil selection that causes root problems. Whatever the cause of root rot, corresponding measures must be taken promptly.
1. Remove the rotted roots.
2. Clean the roots and wash them with potassium permanganate to disinfect and sterilize. You can also apply gentian violet, charcoal ash, rice-straw ash, etc. to the wounds, replace with new soil, control the amount of watering, and do not add fertilizer; new roots will emerge after half a month.