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经过连续三年的试验、示范,地膜覆盖玉米栽培技术已在山西省大面积推广应用。1986年,全省地膜覆盖玉米总面积达36.93万亩,比去年的4.75万亩扩大了7.7倍,在持续干旱的条件下,仍然获得较大幅度的增产。据全省14个点、30个地块的测产分析,覆盖玉米比不覆盖玉米平均亩增产247.3公斤。以此计算,全省可增产玉米0.7～1亿公斤。按现行市场价
After three consecutive years of testing, demonstration, mulching film corn cultivation technology has been widely applied in Shanxi Province. In 1986, the total area of maize covered by plastic film in the province reached 369,300 mu, an increase of 7.7 times that of the previous year’s 4.75 mu. Under the conditions of prolonged drought, the total area of maize covered by maize was still substantially increased. According to the province’s 14 points, 30 plots of production measurement analysis, covering an area of corn than did not cover an average of 247.3 kg of corn. Based on this calculation, the province can increase production of 0.7 to 100 million kilograms of corn. According to the current market price