What about millions of tons of farmland residual film?

The 2017 Annual Conference of the Energy Machinery Branch of the China Agricultural Machinery Society was held on August 17, 2017 in Yinchuan, China. The meeting was attended by Vice President Tian Juncang of Ningxia University, Deputy Director Liang Chunnian of Ningxia Hui Autonomous Region Agriculture and Agriculture Department, President Liu Xian of China Agricultural Mechanization Association, and Deputy Secretary-General Liu Ruiwen of China Agricultural Machinery Association.

Academician Chen Xuegeng gave a lecture on "Residual Film Treatment for Agriculture". According to the Xinjiang Construction Corps survey, the recovery rate of new mulch film in the autumn is less than 50%, and the residual film mulch recovery rate in the 5cm plough layer of the surface to be planted in spring is less than 60%, so that the residual mulch content in the soil increases with the growth of planting years. The average film residue of the land is 24.5kg----36/mu. According to the calculation of the number, the residual film of farmland in the country can be measured in millions of tons, about 700---10 million tons. Academician Chen Xuegeng believes that the treatment of residual film pollution in farmland is a systematic project involving a series of problems such as laws and regulations, subsidy policies, application of mulch film reduction, application of degradable mulch film, mechanized recycling of PE film, and recycling of residual membrane resources. Then, the National New Energy Engineering Technology Research Center He Yannian expert made an academic report on the status and trends of solar thermal utilization at home and abroad. In addition, the academic report of the annual conference exchange also includes the “Development and Application of Wind-Solar Complementary Underground Water-saving Irrigation Equipment” (Dean Zhaojun, Dean/Researcher, College of Resources and Environment, Ningxia University), and “Ningxia Agricultural Residual Film Recycling Comprehensive Management” (Ningxia Agricultural Machinery Promotion Station Tian Jianmin) "Webmaster", "Dynamic Simulation Test Teaching System Construction and Practice" (Deputy Dean of Song Zhenghe, China Agricultural University, School of Engineering), "Development Status of Microwave Drying Technology and Engineering Technology Issues" (Dong Tieyou, Associate Dean, Agricultural College, Henan University of Science and Technology) "High-protein plant feed technology and equipment" (Director Liu Tianshu, Biomass Energy Center of China Agricultural Machinery Institute), "Agricultural Machinery Accident Prevention" (Ningxia Agricultural Machinery Safety Supervision Station, Deputy Director of Cheng Wei). Because of the large number of people communicating, in addition to the first four reports, the time required to control within 20 minutes.

The annual meeting also organized representatives to visit the Wanmu Ecological Park in Zhenbeibao Yuyuan Village, Xixia District, Yinchuan City, the “Energy Ecology” model biogas project and the nursery, planting, drying, warehousing and processing demonstration zones.