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淀粉—聚乙烯膜（指淀粉与聚乙烯按比例共混吹制的膜）在半干旱中早熟玉米区试用，可较好地协调土壤水肥气热状况，促进玉米前期生长发育，获得增产。淀粉—聚乙烯膜覆盖玉米能够提高农田增值率达24．2％，而且比纯聚乙烯膜投入降低，并且具有聚乙烯膜所不及的降解性，因而为半干旱地区耕作栽培增添了新的覆盖材料。
Starch - polyethylene film (starch and polyethylene proportionally blew the film) in the semi-arid mid-early corn field trial, can better coordinate the status of soil water and fertilizer gas and promote the growth and development of pre-corn, to increase production. Covering corn with starch-polyethylene film can increase the added value of farmland by 24.2% and lower than that of pure polyethylene film, and has the degradability of polyethylene film, thus adding new cover for cultivation in semi-arid area material.