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水稻稻瘟病和纹枯病是当前水稻生育中后期的主要病害,对其进行兼治的复配制剂筛选试验结果表明:复混剂2号、3号、5号、6号防治水稻穗颈瘟和纹枯病的平均防效相近,防效为82.76%-84.58%,其中以4号、5号最高达84%以上。综合分析以5号配方最好,防效高、成本低,可以将复混剂5号定为企业配方,即每hm2用药量为75%三环唑420g(有效成分315g)+25%三唑酮480g(有效成分120g),有效成分比为三环唑:三唑酮=2.6:1。
Rice blast and sheath blight are the main diseases in the middle and later stages of rice growth. The results of the screening test of the compounding agent show that: Mixture No.2, No.3, No.5 and No.6 can control rice panicle blast, The average control effect of sheath blight was similar, the control effect was 82.76% -84.58%, of which 4 and 5 were up to 84%. Comprehensive analysis of the best formula No. 5, high efficiency, low cost, compound No. 5 can be set as an enterprise formula, that is, the dosage per hm2 75% tricyclazole 420g (active ingredient 315g) + 25% triazole Ketone 480g (active ingredient 120g), the effective ingredient ratio of tricyclazole: triadimefon = 2.6: 1.