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为解决覆膜栽培作物“早旺后衰”现象,在粘壤质灌耕棕钙土上设置玉米离膜外侧5～8厘米栽培田间小区试验.结果表明,膜外栽培的上温、水分、养分、微生物和酶活性虽低于覆膜处理,但高于对照,起到了缓冲作用,玉米正常成熟,无早衰现象.与对照相比玉米增产99.5～31.9%,与覆膜相比增产10.2～12.1%.清除残膜方便,减少了土壤污染.
In order to solve the phenomenon of “premature wilt and postponement” of covered crop, we set up 5 ~ 8 centimeters of field plot of corn on the loamy cofferdrigated irrigated land.The results showed that the temperature, moisture, Although the nutrients, microorganisms and enzyme activities were lower than the control, they were higher than the control, which played a buffering role.The maize normally matured without premature aging.Compared with the control, the yield of corn increased 99.5-31.9% and the yield increased 10.2 ~ 12.1%. Easy to remove residual film, reducing soil pollution.