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已唑醇等3种杀菌剂对稻曲病与纹枯病的防效

Journal of Zhejiang Agricultural Sciences(2020)

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Abstract
进行3种杀菌剂防治单季稻稻曲病与纹枯病的田间试验.结果 表明,水稻破口前7d,667 m2施用30%肟菌·戊唑醇40 mL、5%已唑醇100 mL、60%A井冈霉素15 g,对稻曲病病指与病粒防效分别为86.6%、84.3%、72.6%和87.2%、85.0%、63.3%;对纹枯病药后15d病指防效分别为76.3%、83.8%、86.3%.水稻破口前17d,667 m2施用30%肟菌·戊唑醇40 mL、5%已唑醇100 mL、60%A井冈霉素15 g,对稻曲病病指与病粒防效分别为74.7%、87.8%、87.8%和72.9%、91.2%、91.2%;对纹枯病药后22 d病指防效分别为76.3%、70.1%、80.1%.3种杀菌剂在破口前7d施用1次,对稻曲病防效以30%肟菌·戊唑醇最好,60%A井冈霉素较差;在破口前17 d施用1次,以5%已唑醇与60%A井冈霉素较好,30%肟菌·戊唑醇较差.兼治纹枯病以60%A井冈霉素与30%肟菌·戊唑醇较好,5%已唑醇次之.
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