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农机化经济效果临界特性曲线

CRITICAL CHARACTERISTIC CURVE ON ECONOMIC EFFECT OF AGRICULTURAL MECHANIZATION
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摘要 本文根据马克思关于选用机器的经济界限理论,在夏振坤的研究基础上,进一步考察了以机器置换手工劳动的过程,提出以劳动日值和机器年作业量作为分析机器经济效果的变量。通过对三种玉米播种机同手工点播的对比分析,建立起了农机化经济效果临界特性方程。得到了农机化经济效果临界特性曲线。运用这个方程和曲线,可以方便地进行农机具的选型,可以因地制宜地排出农机化作业项目的先后顺序,可以预测不同经济水平和经营规模下的农机化发展趋势。 In according with Marxist theory on economic limit of selecting machines and on the basis of the Xia ,Zhen Kun's study, this paper further examines the proce- ss substituting manual operation with mechanical and proposes regarding the labor cost per day and the annual mechanical working capacity as variable for analysing the eccnomic effect of machines. By making a comparable analysis between the three types of corn drills and manual dibbling,we have established the critical characteris-tic equation the critical characteristic curve and on economic effect of agricultural mechanization. Using this equation and curve,we may conveniently select the type and model of agricultural machines,and sequence the working items of agricultural mechanization suitably for a certain region,also forecast the trend of agricultural mechanization at different economic level and for different scaie of enterprise.
出处 《农业机械学报》 EI CAS 1983年第3期92-102,共11页 Transactions of the Chinese Society for Agricultural Machinery
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