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研究表明：在沿黄高扬程干旱灌区，覆膜栽培玉米技术对提高玉米苗期地温、保持墒情和释放土壤速效养分均有良好作用。使出苗期提早７～１１ｄ，后续作用使玉米抽雄期和成熟期提前６～８ｄ和４～９ｄ。但对与之套种的夏熟作物的生育过程有明显的延缓作用。覆膜栽培玉米技术使单种玉米、玉米套种蚕豆和小麦玉米带田依次增加籽粒产量１１５９ｋｇ／ｈｍ２、１７９４ｋｇ／ｈｍ２和１６９９ｋｇ／ｈｍ２，相对增产１２．６％、１８．０％和１６．２％，依次增加净产值１１５５元／ｈｍ２、１６４０元／ｈｍ２和１９８８元／ｈｍ２。
The results showed that the technology of film mulching and corn cultivation has a good effect on raising ground temperature, maintaining soil moisture and releasing soil available nutrients in the irrigation area along the Huangzao high-lift arid irrigation area. Early emergence of seedling 7 ~ 11d, follow-up effect of tasseling and maturity of maize early 6 ~ 8d and 4 ~ 9d. But with the intercropping of summer crops have a significant delay in the process of childbearing. The mulching cultivation of corn technology increased the grain yield of 1159kg / hm2, 1794kg / hm2 and 1699kg / hm2 in single corn, corn intercropping faba bean and wheat corn belt respectively, with a relative increase of 12.6%, 18.0% and 16.2% , In turn increase net output value 1155 yuan / hm2, 1640 yuan / hm2 and 1988 yuan / hm2.