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随着耕作制度的变更和小麦施用氮肥量的增加,麦蚜发生日趋严重,各地对该虫的种群动态及防治方面研究较多,但麦田追施氮肥对麦蚜生长发育的影响国内尚未见报道。我们对该项目作了初步研究,现将结果报道如下。
With the change of tillage system and the increase of nitrogen fertilizer application in wheat, the emergence of wheat aphids became more and more serious. The population dynamics and prevention and control of this insect were studied all over the country. However, the influence of wheat topdressing nitrogen fertilizer on the growth and development of wheat aphid has not been reported in China . We conducted a preliminary study of the project, the results are reported below.