二甲四氯钠与莠灭净混用防除甘蔗田杂草的田间效果  

Effect of MCPA Sodium and Ametryn Mixture on Controlling Weeds in Sugarcane Fields

作　　者：左洪亮[1] 曾勇[1] 高璐[1] 李海怡[1] 钟国华[1] 

机构地区：[1]华南农业大学昆虫毒理研究室,广州510642

出　　处：《湖北农业科学》2010年第11期2798-2801,共4页Hubei Agricultural Sciences

摘　　要：田间试验证明,48%二甲四氯钠·莠去净WP对甘蔗田杂草具有良好的防除效果。以剂量3000～7500g/hm2处理甘蔗田各类杂草,药后45d的株防效为88.26%～96.98%,鲜重防效为84.64%～97.91%,药后60d的株防效为82.00%～91.00%,鲜重防效为86.00%～98.00%。与56%二甲四氯钠WP和80%莠灭净WP单用相比,48%二甲四氯钠·莠去净WP扩宽了杀草谱,提高了防效,整体控制效果良好,对甘蔗安全。The result of efficacy evaluation of herbicide showed that 48% MCPA sodium·ametryn WP has a good effect on controlling weeds in sugarcane fields.The control effects on weeds quantity were 88.26%～96.98% and 82.00%～91.00%,and on fresh weight were 84%～97% and 86.00%～98.00% after 45 days and 60 days treated with 48% MCPA sodium·ametryn WP at a dosages of 3000～7500g/hm2,respectively.Compared with the effects of 56% MCPA sodium WP and 80% ametryn WP singly use,48% MCPA sodium·Ametryn WP has extended the herbicidal spectrum,improved the efficacy on weeds,as well as it was safety to sugarcane.

关 键 词：48%二甲四氯钠 莠灭净 甘蔗 杂草 防效 

分 类 号：S451.2[农业科学—植物保护]