Plastic Film Covering Planting Technology and Residual Film Pollution Prevention and Control

Plastic film covering planting technology has been applied for decades and residual plastic film has become a serious pollution hazard．Given its positive role in safe supply of agricultural products in China, plastic film mulch is indispensable and thus it is inevitable to prevent and control residual film pollution．At present, there are three main measures for prevention and control of residual film pollution, namely, reducing use of plastic-film mulch, replacing common polyethylene film with degradable ones, and recycling residual mulch film．Development and application of agricultural plastic film in China, positive effect of plastic film on planting, harm of residual film, and measures for prevention and control of residual film pollution were introduced．Prevention and control technology of residual film pollution was prospected, hoping to provide a reference in this respect．