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[目的]明确42.4%唑醚·氟酰胺SC在推荐使用剂量下防治马铃薯早疫病的效果,为生产上安全应用提供理论依据。[方法]采用“DMRT”法进行方差分析,并用邓肯氏新复极差法检验差异显著性。[结果]3次施药后10 d,42.4%唑醚·氟酰胺SC 112.5、150 g a.i./hm~2对马铃薯早疫病防效为86.33%~90.17%;42.4%唑醚·氟酰胺SC 75 g a.i./hm~2与300 g/L氟唑菌酰胺SC防效相当,高于250 g/L醚菌酯EC和50%啶酰菌胺WG的防效。[结论]42.4%唑醚·氟酰胺SC对马铃薯早疫病具有较好的防治效果,建议发病初期施用,推荐使用剂量为112.5~150 g a.i./hm~2。
[Objective] The research aimed to clarify the effect of 42.4% azole ether · flutamide SC on control of early blight of potato in the recommended dosage and provide a theoretical basis for its safe application in production. [Methods] The variance analysis was carried out by using “DMRT” method and the difference significance was tested by Duncan's new repolarization method. [Result] The control efficacy of 42.4% oxalyl ether · flutamide SC 112.5 and 150 g ai / hm ~ 2 on early blight of potato was 86.33% -90.17% g ai / hm ~ 2 was similar to that of 300 g / L PF, higher than that of 250 g / L SBR EC and 50% boscalid WG. [Conclusion] 42.4% azole ether · flutamide SC had better control effect on potato early blight. It is suggested that the initial dosage should be 112.5-150 g a.i./hm~2.