【摘 要】
：
我国自1982年开始进行玉米覆膜栽培试验,1983～1984年在甘肃、内蒙古等地已进行大面积示范,取得了较好效果。 黑龙江省位于高纬度地区,无霜期短,春季常遇干旱或低温而使玉米缺
【机 构】
：
东北农学院,东北农学院,东北农学院
论文部分内容阅读
我国自1982年开始进行玉米覆膜栽培试验,1983～1984年在甘肃、内蒙古等地已进行大面积示范,取得了较好效果。 黑龙江省位于高纬度地区,无霜期短,春季常遇干旱或低温而使玉米缺苗,秋季又易遭早霜,导致玉米贪青晚熟而减产。为解
Since 1982, China has carried out experiments on cultivation of corn covered with plastic film. From 1983 to 1984, large-scale demonstration has been carried out in Gansu, Inner Mongolia and other places and good results have been achieved. Heilongjiang Province is located in the high latitudes, frost-free period is short, spring often encounter drought or low temperature and lack of seedlings of corn, autumn and easy to be frost, resulting in corn late grey-green and yield. To solve
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