What role does Lagerstroemia indica play in preventing and controlling domestic pollution?

The role of preventing and controlling domestic pollution:

Sandy loam with rich organic matter and good drainage is the best soil for potted plants, which can be mixed with humus or pond mud 5 parts, field soil 3 parts, manure 1 part and river sand respectively. Potted plants are placed on balconies and in front of windows where there is plenty of light. Keep the soil slightly moist in winter, and the temperature is high in spring, summer and autumn. Water it once a day. Lagerstroemia indica likes fertilizer, and it is fertilized once every half month during the growing period, combined with organic fertilizer and compound fertilizer, and applied with phosphorus and potassium fertilizer before flowering. Because the nutritional area of potted plants is limited, the pots should be changed every 1 ~ 2 years, especially in early spring. Cut off branches in time after flowering to avoid consuming nutrients. Ziwei with purifying function is an excellent potted plant with diverse colors and long flowering period. Study on volatile oil from Osmunda japonica Thunb. Has obvious sterilization effect. In addition, Ziwei. It has strong resistance to indoor sulfur dioxide, chlorine, hydrogen sulfide and fluorine, and has strong absorption capacity.