秋白菜霜霉病发生与环境关系及灰色预测的初步研究

The relationship between Chinese cabbage downy mildew occurrence and environment and the disease forecastina with grey theory

本文以辽宁省喀左县秋白菜霜霉病发生与天气、气候、品种及种植管理的关系为例,分析了霜霉病发生时期与环境条件的利弊关系。采用灰色系统理论方法,在IBM机上建立了长期预测模式[GM,(1,1)],经2年试报,取得了满意的效果。

According to the relationship between Chinese cabbage downy mildew occurrence in Kazo County and the environmental factors, such as weather climate,cabbage varieties and the cultural management, the advantageous and disadavantageous points were analysed in the occurrence time as well as in the enviromental factors. Using the method of grey system theory, a model of long term disease forecasting was established on the IBM computer and the results were satisfactory in the 2-year trying practice.