Agricultural plastic film is not well kept, it is easy to harden aging, affect the service life. The correct method of preservation is: 1 bag storage method: The plastic film should be washed with a plastic bag, tightly packed, and kept in a cool place. 2 Water storage method: Immerse the washed agricultural film into the water tank (pool), cover it with shade, and pay attention to the lack of water during storage, otherwise it will be more susceptible to aging. 3 burial method: The washed agricultural film should be buried in moist loess, and the soil should be kept moist during storage. 4 pit deposit method: the leveling of the washed agricultural film, placed in a damp crypt, can delay the film aging rate.
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