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近年来温州地区早稻纹枯病呈逐年加重趋势,为筛选早稻纹枯病的有效防治药剂,开展了75%肟菌·戊唑醇WG(拿敌稳)、32.5%嘧菌酯·苯醚甲环唑SC(阿米妙收)和48%嘧菌酯·苯醚甲环唑SC(农精灵)对早稻纹枯病的防病增产效果小区试验。结果表明:75%肟菌·戊唑醇WG(拿敌稳)、32.5%嘧菌酯·苯醚甲环唑SC(阿米妙收)和48%嘧菌酯·苯醚甲环唑SC(农精灵)对早稻纹枯病都有较好的防控效果,并都具有增产效果,其中以75%肟菌·戊唑醇WG(拿敌稳)的防病增产效果最为显著,病情发展期防效93.5%,病情稳定期防效87.45%,与其他处理均达到显著差异,实割亩产489.16 kg,比对照(CK)增产12.03%,比井冈霉素处理增产7.25%。32.5%嘧菌酯·苯醚甲环唑SC(阿米妙收)防效分别为76.22%和70.03%,48%嘧菌酯·苯醚甲环唑SC(农精灵)防效分别为82.96%和68.42%,两者无显著差异,实割亩产32.5%嘧菌酯·苯醚甲环唑SC(阿米妙收)472.42 kg,48%嘧菌酯·苯醚甲环唑SC(农精灵)471.50 kg,分别比对照(CK)增产8.19%和7.98%,比井冈霉素增产2.20%和1.96%。
In recent years, the early rice sheath blight in Wenzhou showed a trend of increasing year by year. In order to screen the effective control agent for early rice sheath blight, 75% oxime-tebuconazole WG (with enemy stabilized), 32.5% azoxystrobin Cytoconazole SC (Amoxicar) and 48% Azoxystrobin Difenoconazole SC (Agrimonia) on rice sheath blight disease prevention and yield enhancement plot test. The results showed that 75% oxime-tebuconazole WG (with the enemy being stable), 32.5% azoxystrobin and difenoconazole SC (Amifloxacin) and 48% azoxystrobin difenoconazole SC Agronomy had a good control effect on rice sheath blight, and both had the effect of increasing yield. Among them, 75% tenfloxacin and tebuconazole WG had the most significant effect on disease prevention and growth, The control efficiency was 93.5%, and the control effect was 87.45% at the stable condition. The yield was 489.16 kg per mu, which was 12.03% higher than CK and 7.25% higher than Jinggangmycin treatment. The control efficacy of 32.5% azoxystrobin and difenoconazole SC was 76.22% and 70.03%, respectively. The control efficacy of 48% azoxystrobin and difenoconazole SC was 82.96% And 68.42%, no significant difference between the two, the actual cut mu yield of 32.5% azoxystrobin difenoconazole SC (Ami Miao) 472.42 kg, 48% azoxystrobin difenoconazole SC ) And 471.50 kg respectively, which increased 8.19% and 7.98% respectively than that of CK and 2.20% and 1.96% higher than that of Jinggangmycin.