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油菜菌核病的予测予报,福建、江西、湖南等省曾用春季降雨量予测病害能否流行。据我所用武汉12年3—4月的降雨量与病害关系资料分析结果,这种单因子测报方法的准确率仅64％。1975年以来,我们采用多因子予测的方法,使予报准确率达到了100％。这种测报方法是:根据病害流行规律选择予测因子;运用正交拉丁方求算予报对象与予测因子的回归方程;利用回归方程予报病害能否流行。
Rape sclerotinia is reported to be given to predict, Fujian, Jiangxi, Hunan and other provinces have used spring rainfall to predict disease prevalence. According to the analysis of the data of the relationship between rainfall and disease in Wuhan from March to April in 2012, the accuracy of this single-factor method is only 64%. Since 1975, we have adopted a multi-factor test to make the reported rate of accuracy 100%. This method of reporting is: according to the prevalence of disease choose to predict the factor; using orthogonal Latin square to calculate the object to be reported and the regression equation of the factor; the use of regression equation to report the prevalence of disease.