摘要
【目的】拓展创制除草剂单嘧磺酯的使用方法。【方法】开展一系列复配试验。重点研究了25％单嘧·2甲4氯钠盐水剂对冬小麦田杂草的田间药效。【结果】在冬小麦田返青期施用225—562．5ga．i．／hm2剂量的25％单嘧·2甲4氯钠盐水剂，能有效防除播娘蒿、麦瓶草和荠菜等麦田主要杂草，施药后45d对杂草株防效在90％以上，鲜质量防效达95％以上。【结论】25％单嘧·2甲4氯钠盐水剂除草效果明显，推荐剂量下对冬小麦安全。
[Aims] The paper aims to develop the application method of sodium monosulfuron-ester. [Methods] A series of weed control tests were conducted and the field efficacy was studied of sodium monosulfuron-ester. MCPA-Na 25% AS in winter wheat fields. [Results] The results showed that： sodium monosulfuron-ester. MCPA-Na 25% AS at 225- 562.5 g a.i./ha has very good efficacy on Descurainia sophia, Capsella bursa-pastoris, Silene conoidea and other annual broadleaf weeds, after 45 days of application, its inhibiting effect on weeds is above 90% （in numbers） and above 95% （in fresh weight）. [Conclusions] Sodium monosulfuron-ester. MCPA-Na 25% AS can effectively control the weeds. At the recommended rate of application it is safe on wheat.
出处
《农药》
CAS
北大核心
2012年第12期924-926,共3页
Agrochemicals
基金
农业科技成果转化资金项目(2010GB23600658)
关键词
单嘧磺酯钠盐
2甲4氯钠
水剂
药效试验.
sodium monosulfuron-ester
MCPA-Na
aqueous solution
efficacy test
