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本文介绍了专家系统在水稻病害治理上的应用．系统由人机接口、知识库、推理机和知识库管理程序四部分组成．防治指标分析模块、发病因素分析模块和防治措施组合模块是推理机的主要组成部分．在对１０９４份水稻品种进行抗性分析的基础上，采用以品种抗性级别来校正理论防治指标，系统可区别不同情况提出相应的综合治理措施，具有较高的智能化程度．程序用Ｐｒｏｌｏｇ语言编写，可在支持直接写屏的中文系统下快速运行．
This paper introduces the application of expert system in rice disease control. System consists of human-machine interface, knowledge base, reasoning machine and knowledge base management program composed of four parts. Prevention indicators analysis module, the analysis of risk factors and prevention module combination module is the main component of inference engine. Based on the resistance analysis of 1094 rice cultivars, the theoretical control indexes were calibrated according to the resistance level of varieties. The system could put forward the corresponding comprehensive control measures according to different situations and had a higher degree of intelligence. The program is written in Prolog and can be run quickly on a Chinese system that supports direct write screen.