Low density polyethylene film is a type of film used to cover the growth ground of crops. Its function is to retain water and prevent fertilizer loss, ensuring crop yield increase. In order to meet the needs of different crop growth, plastic film can be made into black, red, white, blue and other colors. Insulation, such as covering potatoes with black film, can not only increase yield but also inhibit weed growth; Covering the ground where crops grow with blue film can increase both yield and temperature; The red film is suitable for covering the surface of cotton growth; The ground of the apple orchard is covered with silver reflective film, which has a good color and early ripening of the fruits, and can also have the effect of removing aphids.
There is also a type of photodegradable plastic film formed by adding a photodegradable agent to low-density polyethylene. The role of light in the use of plastic film decreases and decomposes into fragments, reducing the pollution of the film to the environment.
