水稻褐飞虱发生程度气象预报方法的研究

目的]建立水稻稻飞虱发生程度预报方程,从气象条件的角度对每年的发生程度进行预测,指导稻飞虱的防治工作。方法]利用江苏泰州地区历年气象资料和水稻稻飞虱发生资料,选取大量气象因子,采用逐步回归的方法,寻找和水稻稻飞虱发生密切相关的气象因子。结果]前期气象因子与当年水稻稻飞虱发生密切相关;3~5月平均气温与10月上旬褐飞虱影响程度呈负相关;2~4月降水量和降水日数与10月上旬褐飞虱影响程度呈正相关。结论]以前期气象因子通过逐步回归建立的预报方程可用于实际预测。

Research on the Weather Forecasting Method of Rice Brown Planthopper Occurrence

Objective] The forecasting equation of rice brown planthopper occurrence was established and the prevention and treatment of rice planthopper were guided with the prediction result from the perspective of the weather condition.Method] The data of the weather and rice planthopper occurrence in Taizhou of Jiangsu province being taken as basic information,the relationship between meteorological factor and rice planthopper occurrence was analyzed with the method of stepwise regression.Results] There was a cl...