本文简明地叙述了根据作物产量效应函数进行经济技术效果分析的原理,计算不同边际利润值下的纯收益表的步骤和画等产量线图形方法,给出了计算机程序的详细框图。并用一个具体实例,说明怎样使用实用程序及对输出数据和图形的分析结果。 This paper briefly describes the principle of economic and technological effects analysis based on the crop yield function, the steps of calculating the net income statement under different marginal profit values ​​and the drawing of the production line graphics method, and gives a detailed block diagram of the computer program. And use a concrete example, explain how to use the utility program and analyze the output data and graph.