植物病害数值诊断法及其应用前景

植物病害数值诊断法是运用模糊数学原理和灰色系统理论，利用模糊识别、灰色判断系统、信息控制理论、专家系统原理的原则，应用知识工程处理方法，将植物病害症状信息经序化、量化、经纬化（二维化），实现了数量化处理，量化为诊断数值，在诊断中用模糊识别、经简单加减运算求和，以和值最大者为诊断结果。此法具有简便易于掌握，快速诊断准确率高的特点，是植物病害诊断与模糊数学、灰色系统理论、信息系统论、控制论等新学科相结合的一种新方法，有利于推进植物病害诊断的现代化。

Quantitative Diagnostics for Plant Diseases and Prospect of Use

The quanti tative diagnostics for plant diseases, which based on the theory of fuzzy mathematics and grey system,fuzzy discriminant,grey judgement system,information cybernetics,expert system theory,knowledge engineering processing,makes the information of plant disease symptoms orderly,quantitative and two dimensional,realizes quanti tative processing and quantifies them into diagnostic number.In practice,it uses fuzzy discriminant to get the result,which is the maximum of all sums,through simple plus,minus calculation.This way is quick,simple,and also of high accuracy.It is a new diagnostic method combined plant disease diagnosis with fuzzy mathematics,grey system,information system,cybernetics,etc.,which is favourable for promoting the modernization of plant disease diagnosis.