采用二十五种统计方法,对山东省小麦主要病虫害10年发生统计数据进行运算,结果表明,以Fuzzy向量综合法M=sum from i=1 to(X_i,C),确定农作物病虫害发生程度的综合指标,效果好,计算简便.式中X_i表示各病虫害发生面积占为害作物种植面积的%,归—化后组成Fuzzy向量,C表示与X_i相对应的发生程度级数. Twenty-five kinds of statistical methods were used to calculate the statistical data of major diseases and insect pests in wheat in Shandong province in ten years. The results showed that the degree of occurrence of crop pests and diseases was determined by fuzzy comprehensive vector method M = sum from i = 1 to (X_i, C) The comprehensive index, the effect is good, the calculation is simple, where X_i indicates that the pests and diseases occupy the crop acreage of planting area%, after the composition of the fuzzy vector, C and X_i corresponding degree of occurrence series.