应用线性规划模型调整作物生产结构

东陵区是沈阳市郊区。过去,由于农作物生产结构不合理,致使农产品的商品率和经济效益都比较低,1983年以来,进行了资源调查和农业区划。1986年又在调查和区划所收集的资料和数据基础上,应用线性规划建立数学模型,调整作物结构,形成了新的作物生产规划。按照新的规划全区种植业净产值可达11309.9万元,比1983～1985年三年平均净产值增加2004.9万元,粮豆总产可达4.3亿斤,蔬菜总产量可达6.3亿斤以上,保证了满足供应城市和自给生产的需要。

Using Model of Linear Programming to Regulate Crop Production Structure

Donling District is situated in the suburb of Shenyang City. In the past, economic efficiency was low in crop production, and much of the produce was not merchandized in this area, due to irrational crop production structure. During the three years between 1983 and 1985, a survey of natural resources was conducteddin the region, followed by a thoughtful planning of crop production. And in 1986, based on the information and clata obtai- ned, a mathematical model was constructed, using linear programming method, to regulate crop production structure, and a new plan for crop prodiction was formulated. Under the plan, yearly crop output in the whole district would amount in value to 113, 099, 000 yuan--an increase of 20, 049, 000 yuan over the average value for the past three years (1983--1985). The total yield of cereals and legumes would reach 240, 000, 000 kgs, and that of vegetables, 315, 000, 000 kgs., which are able to meet the needs of urban supplies and the consumption by the producers and their families.