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玉米、马铃薯套种,是一项提高粮食产量,增产蔬菜,增加收益的栽培措施。岫岩县从1980年推广这项栽培措施,种植面积年年扩大。1984年全县种植面积达10.1万亩,据8个点调查,玉米、马铃薯以2:1套种,玉米平均亩产(加上马铃薯折粮)997.01斤,比清种玉米平均亩产增加171.66斤,亩纯收益增加53.74元。石庙乡石庙村农民杜明星,在4亩沙壤土地上实行玉米、马铃薯套种,马铃薯亩产(纯面积)1,052斤,玉米亩产(棍面积)1,074.7斤,亩产值达172.9元。
Corn and potato intercropping are a cultivation measure to increase grain yield, increase vegetables and increase profits. Xiuyan County from 1980 to promote the cultivation measures, planted area has expanded each year. 1984, the county planted an area of 101000 acres, according to 8 points survey, corn, potato with 2: 1 intercropping, average yield per acre corn (with potato turnovers) 997.01 kg, than the average per acre maize output increased 171.66 pounds , Net profit increased 53.74 yuan per mu. Du Mingxing, a farmer from Shimiao Village, Shimiao Town, practiced corn and potato intercropping on 4 mu of sandy loam soil. 1,052 kg of mu per mu (pure area) of potato and 1,074.7 kg of mu per mu of corn were found. The mu output reached 172.9 yuan per mu.