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农学学报

农学学报 ›› 2011, Vol. 1 ›› Issue (2): 15-18.

所属专题： 油料作物

• 植物保护 • 上一篇    下一篇

42%噁草酮.乙草胺EC对花生田一年生杂草的防除效果

刘祥英 周小毛 邬腊梅 杨彬   

  • 收稿日期:2011-03-04 修回日期:2011-03-17 出版日期:2011-04-25 发布日期:2011-04-25
  • 基金资助:

    现代农业产业技术体系建设岗位科学家项目:农药与杂草防控

Efficacy of Oxadiazon?Acetochlor 42% EC in Controlling Annual Weeds in Peanut Fields

  • Received:2011-03-04 Revised:2011-03-17 Online:2011-04-25 Published:2011-04-25

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摘要：

为明确42%噁草酮?乙草胺EC对花生田一年生杂草的防除效果、最佳田间使用剂量及施药技术。田间药效试验结果表明：42%噁草酮?乙草胺EC对花 生田一年生杂草有很好的防治效果，且在试验剂量下对花生安全，适宜的施用剂量为810~1080 g a.i./hm2，兑水600 L/hm2。施药适期为花生播 后苗前，施药方法为土壤喷雾处理，药后20天的株防效为91.7%~93.2%，药后40天的株防效为85.7%~87.7%、鲜重防效为82.1%~84.4%。42%噁草酮 ?乙草胺EC是防除花生田一年生杂草的优良除草剂。

关键词: 边缘效应发生率, 边缘效应发生率, 边缘效应态势率, 边缘效应递减率

Abstract:

Oxadiazon?acetochlor 42% EC was sprayed on soil with pre-emerge peanut to study its control effect, optimum dosage, control techniques on annual weeds and safety to peanut by field trails. The results showed that oxadiazon?acetochlor 42% EC had excellent control effect on annual weeds and no injuries of peanut seedling in peanut fields. The stem control effect of annual weeds reached 91.7%-93.2% after 20 days and 85.7%-87.7% after 40 days at the optimum dosage of 810-1080 g a.i. and water 600 L per hectare. The fresh weight effect of this treatment was 82.1%-84.4% after 40 days.