论文部分内容阅读
调查并比较了6种新药剂对水稻纹枯病的田间防效。结果表明,供试药剂对水稻纹枯病都具有较好的防治效果。第2次药后15 d调查,32.5%苯甲·嘧菌酯SC、75%肟菌·戊唑醇WG、24%噻呋酰胺SC、12.5%氟环唑SC的防效分别达89.21%、92.59%、92.47%、87.25%,显著优于30%苯甲·丙环唑EC和5%己唑醇EC的防效。与对照区相比,供试药剂处理区每667 m2增产30.89~83.59kg,增产效果较明显。
The field control efficacy of six new agents against rice sheath blight was investigated and compared. The results showed that the tested pesticides had a good control effect on rice sheath blight. After 15 days of the second drug test, the control effects of 32.5% azoxystrobin SC, 75% oxime-tebuconazole WG, 24% thifluzamide SC and 12.5% epoxiconazole SC were 89.21% 92.59%, 92.47% and 87.25%, respectively, which was significantly better than that of the control with 30% benzopiroxazole EC and 5% hexaconazole EC. Compared with the control area, the treatment area of the tested pesticide increased yield by 30.89 ~ 83.59kg per 667 m2, and the yield increase effect was obvious.