安徽小麦赤霉病多模型预测及比较分析

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  建立安徽省小麦赤霉病发生预测模型,为科学防治安徽省小麦赤霉病提供参考依据.根据安徽省小麦赤霉病发生发展的气象生理指标及1987-2014年该病发生的统计资料,对28年来安徽省小麦赤霉病发生信息进行了数据预处理,建立了综合预测、相似年分析、逐步判别和网络会商四种预测模型,并进行了相应的预测、分析和评估.结果表明,利于安徽省小麦赤霉病发生的气象条件是4月下旬或5月上旬的旬平均气温较高、旬平均湿度偏大和雨日偏多的天气,应用四种预测模型对安徽省小麦赤霉病发生流行进行预测,预测准确率分别为69.1%、76.6%、60.8%、81.2%,四种预测模型对安徽省小麦赤霉病流行程度具有一定的预测预警能力.
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