可降解生态地膜在滕州马铃薯上的应用研究

Application Experiment of Degradable Ecological Plastic Film on Potatoes in Tengzhou

本研究选用3款不同降解时间的生态地膜在滕州马铃薯上开展应用试验。结果表明,可降解生态地膜在马铃薯生长前期、未降解时,保温保墒性能与普通聚乙烯地膜一致,能够满足马铃薯生长的覆膜需求;出现降解现象后,降解过程持续、稳定,至马铃薯收获时拉力性能明显降低,局部粉碎;覆盖生态可降解地膜的马铃薯全生育期长势良好,产量与覆盖普通聚乙烯地膜处理的差异不明显,具有良好的推广应用前景。

This study selected three types of ecological plastic films with different degradation times to conduct application experiments on potatoes in Tengzhou.The experimental results showed that the degradable ecological plastic film has the same insulation and moisture retention performance as ordinary polyethylene plastic film during the early stage of potato growth and before degradation,and can meet the film covering requirements for potato growth.After the degradation phenomenon occurs,the degradation process was continuous and stable,and the tensile performance significantly decreases when the potatoes are harvested,resulting in local crushing.Potato covered with ecologically degradable plastic film have good growth throughout their entire growth period,and there is no significant difference in yield compared to the treatment covered with ordinary polyethylene film,indicating good prospects for promotion and application.