论文部分内容阅读
75%肟菌·戊唑醇WG不同施药量防治水稻后主要病害试验结果表明,75%肟菌.戊唑醇WG对水稻穗瘟、稻曲病、纹枯病等主要病害均具有较好的防治效果,用药量225g/hm2,于水稻破口前3d、齐穗期各防治1次,对水稻穗瘟防效高于40%稻瘟灵EC 1500mL/hm2,对稻曲病、纹枯病的防效显著高于40%稻瘟灵EC 1500mL/hm2。75%肟菌.戊唑醇WG防治水稻主要病害对水稻具有较好的增产效果,主要是结实率提高、千粒重增加、空谷率下降。75%肟菌·戊唑醇WG防治水稻穗瘟、稻曲病、纹枯病等主要病害,建议用药量为150～225g/hm2;若防治感稻瘟病的水稻品种,75%肟菌·戊唑醇WG用药量应为225g/hm2,于水稻破口前3d、齐穗期各防治1次。
The results showed that 75% tenfloxacin and tebuconazole WG had good effect on the main diseases of rice panicle blast, rice false smut and sheath blight The control effect was 225g / hm2. Before blastover, the control effect was higher than that of 40% rice blast isolates EC 1500mL / hm2, The disease control efficacy was significantly higher than that of 40% rice blast solution EC 1500mL / hm2.75% .Steprazole WG control of rice diseases have a good yield-increasing effect on rice, mainly increased seed setting rate, increased grain weight, empty rate decline. 75% tenfloxacin · tebuconazole WG prevent and control rice panicle disease, rice false smut, sheath blight and other major diseases, the recommended dosage is 150 ~ 225g / hm2; if rice blast control rice varieties, 75% Azole alcohol WG dosage should be 225g / hm2, before the breach in rice 3d, heading control each time.