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本文以冀南麦区麦蚜百株蚜量达500头日期做为发生期预报量,采用模糊数学因子权重综合评判方法进行预报,发生期历史符合率达100％,发生量历史符合率88.9％,两年试报准确。
In this paper, 500 aphids of wheat aphid in the Hebei wheat area were used as the prediction of the occurrence period. The fuzzy mathematics factor weight comprehensive evaluation method was used to predict the occurrence date. The coincidence rate of the occurrence period was 100% and the coincidence rate of the occurrence quantity was 88.9% Two years trial accurate.