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小麦条锈病在甘肃省天水地区的发生,有的年份比较严重,在预测预报上多采用经验性的方法分析,由于制约的因子很多,分析时常常把握不住要点。天水市北道区(原天水县)植保公司从一九七六年开始从事小麦条锈病的预测预报工作,已经积累了十几年的系统观测资料。我们采用统计分析方法,对品种、病源、气温、降雨等十八个因子进行筛选,选出了元月平均气温、感病品种种植面积百分比为主因子或关键因子,秋苗平均每亩病叶数、3月
Wheat stripe rust occurred in the Tianshui area of Gansu Province, with some years being more serious. Empirical methods were often used in forecasting and forecasting. Due to many constraints, the analysis often failed to grasp the key points. Tianshui North Road (formerly Tianshui County) plant protection company from 1976 in wheat stripe rust forecasting work, has accumulated more than 10 years of systematic observation data. We use statistical analysis methods to select 18 factors such as variety, disease source, temperature and rainfall, and select the average temperature of January, the percentage of acreage cultivated area as the main factor or the key factor, Number, March