扑草净与噁草酮混配的联合作用测定及混用配方筛选
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S482.4

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Determination of Combined Effect of Prometryn and Oxadiazon and Screening of Mixed Formula
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    摘要:

    本文用孙云沛方法测定了扑草净与噁草酮混配的联合毒力作用,利用盆栽试验的方式,以球茎繁殖的野慈姑为靶标,采用二因素五水平正交旋转组合设计的方法筛选了二者混用的最佳配方。结果表明:扑草净与噁草酮混用具有增效作用,对球茎繁殖野慈姑1:0.9配比具有明显增效作用;最佳用量范围为:扑草净(361.05~440.325 g a.i./hm2)+噁草酮(340.7~393.5 g a.i./hm2);扑草净与噁草酮混用对球茎繁殖野慈姑防效的最佳配方为:扑草净(440.325 g a.i./hm2)+噁草酮(393.5 g a.i./hm2),对野慈姑的防效为82.33%;二者任意配比混用均无拮抗作用。

    Abstract:

    The determination of the combined effect of prometryn and oxadiazon was studied based on Sun Yun-pei’s methods. We took the pot-cultured Sagittaria trifolia which propagated by corm as target and screened thebest formula by the five-level two factors orthogonal rotation central composite design. The result showed that themixture of prometryn and oxadiazon got a synergistic effect on Sagittaria trifolia especially when the ratio was 1:0.9.The best range of dosage was: 361.05-440.325 g/hm2 prometryn + 340.7-393.5 g/hm2 oxadiazon. The best ratio ofthe mixture of prometryn and oxadiazon to control Sagittaria trifolia which propagated by corm was 440.325 g/hm2 prometryn + 393.5 g/hm2 oxadiazon, and the control effect was 82.33%. Mixture of the two herbicides never showedantagonism effect with any ratio.

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尹忠达,刘英,何付丽,林祥萍,赵长山.扑草净与噁草酮混配的联合作用测定及混用配方筛选[J].东北农业科学,2015,40(1):68-72.

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  • 收稿日期:2014-08-21
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  • 在线发布日期: 2024-12-06
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