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选用抗病品种结合药剂防治是控制稻瘟病流行的根本途径。为测试新农药对穗颈瘟的防治效果,我们选择九种目前常用和最新农药进行试验。一、试验设计:利用本所育种室的一块品种试验田,其地力、水肥管理条件一致,品种72—1—34,感瘟,长势均匀,无叶瘟塌圈和其他的达到防治指标病虫害。喷药前常规法调查叶瘟病叶率9.3％、病指2.6,存在足够的穗
The use of resistant varieties combined with chemical control is the fundamental way to control the epidemic of rice blast. To test the effectiveness of new pesticides against panicle blast, we selected nine currently used and most recent pesticides to test. First, the experimental design: The use of the breeding room of a variety of experimental plots, its fertility, water and fertilizer management conditions are consistent, the variety 72-1-34, flu, uniform growth, no leaf blast and other diseases and insect pests to prevent and control indicators. Before spraying the conventional method to investigate the leaf blast rate of 9.3%, disease means 2.6, there is enough spike