【摘要】 为进一步验证维大力对水稻产量及抗病性方面的功效，为其在水稻生产上的推广应用提供科学依据，设置了不同施用时间（播种前、苗期、破口期、齐穗期）及不同施用方法（拌种、茎叶喷雾）组合的处理。结果表明，维大力不同处理方式处理后，水稻纹枯病的病情指数均显著低于清水对照；对稻瘟病的防治效果以拌种+破口期喷雾+齐穗期喷雾效果最好，病指防效达76.53%，且该处理组合方式对水稻产量的提升也最为明显，增产了13.27%；不同处理对水稻植株不同性状的影响差异显著。因此，在水稻生产中，推荐使用维大力拌种，并在水稻破口期、齐穗期150 g/hm~2茎叶喷雾处理。更多还原

【Abstract】 In order to further verify the efficacy of VDAL on rice yield and disease resistance,and provide scientific basis for its popularization and application in rice production,different application time (before sowing stage,rice seedling stage,rice burst stage,rice full heading stage) and different application methods(seed dressing,stem and leaf spray) were set.The results indicated that the disease index of rice sheath blight treated with different treatments were significantly lower than that of clean water control.The best control effect of rice blast was seed dressing+spraying at rice burst stage+spraying at full heading stage,and the control effect of diseased fingers reached 76.53%.At the same time,this treatment combination also showed the most significant improvement in rice yield,with an increase of 13.27%.The effects of different treatments on characters of rice plants were significantly different.Therefore,in rice production,it is recommended to use VDAL for seed dressing,and spray 150 g/hm~2 of stems and leaves at rice burst stage and full heading stage.更多还原