高海拔地区全生物降解膜引进试验初报

Preliminary Report on the Introduction of Full Biodegradable Film in High Altitude Area

甘肃省甘南州海拔高,且不同地区差异较大,雨水充足,但光热资源相对较差。在农作物种植中,推广地膜覆盖栽培技术是一项有效的增产措施,也是高海拔地区广泛使用的种植模式。为了响应州委州政府创建“五无甘南”新名片的号召,认真践行新发展理念,通过从兰州鑫银环橡塑制品有限公司引进0.01 mm,0.015 mm,0.02 mm的全生物降解膜和0.01 mm的普通地膜,在甘南州高海拔地区开展全生物降解膜对比试验,总结了不同规格的全生物降解膜对土壤的保温、保墒性能及对农作物产量的影响,从而筛选出高海拔地区适宜的全生物降解膜。

Gannan prefecture is high in altitude and varies greatly from region to region. It has sufficient rainfall but relatively poor light and heat resources. In crop cultivation,the promotion of plastic film mulching technology is an effective measure to increase yield,and it is also a planting mode widely used in high altitude areas. In order to respond to the call of the local government to environmental conservation policy and earnestly practice the new development concept,we introduced three types of fully biodegradable mulching film with the thickness of 0.01mm,0.015mm and 0.02mm respectively. The comparison test of fully biodegradable film was carried out in the high-altitude area of Gannan Prefecture,using 0.01mm ordinary plastic film as control. The results showed that covering the three types of fully biodegradable films respectively,the crop yield was lower than that of ordinary mulching films. While the 0.01mm biodegradable film,with certain thermal insulation and moisture retention properties,had a relatively small reduction in yield. Moreover,0.01mm biodegradable film can basically degrade in the current year and can be applied in agricultural production.