苄嘧磺隆与丁草胺复配药肥对水稻抛秧田杂草的防除作用  

Effect of bensulfuron-methyl and butachlor in admixture with fertilizers on weeds control in rice seedling casting fields

作　　者：李海怡[1] 高璐[1] 左洪亮[1] 钟国华[1] 

机构地区：[1]华南农业大学昆虫毒理研究室,广东广州510642

出　　处：《广东农业科学》2011年第2期74-76,共3页Guangdong Agricultural Sciences

基　　金：广东省科技计划项目(2008B02090007)

摘　　要：水稻抛秧田杂草危害重,生产实践迫切需要大量高效、广谱、经济、安全的抛秧田除草剂。复配药肥0.64%苄嘧磺隆.丁草胺颗粒剂可有效防除水稻抛秧田1年生杂草,以每667 m^2制剂用量5 000-12 000 g（有效成分32-76.8 g）施用后45 d内对各类目标杂草的株防效和鲜重防效均可达80%以上,整体防除效果良好,与10%苄嘧磺隆可湿性粉剂和50%丁草胺乳油单用相比,扩宽了杀草谱,提高了防效,减少了施肥量和劳动量,可选用防除南方水稻抛秧田杂草。Because of the heavy damage of weeds in rice seedling casting fields,it is urgently need for a number of efficient,broad-spectrum,economic,and secure herbicides.Result from efficacy evaluation of herbicide showed that 0.64% bensulfuron-methyl·butachlor G,a new kind of admixture with fertilizer,has a good effect on weeds control in rice seedling casting field tests in 2007 and 2008.The control effects on weeds quantity and on fresh weight were more than 80% after 45 days treated with 0.64% bensulfuron-methyl·butachlor G at a formulation dosage of 5 000-12 000 g/667m^2（active ingredient dosage 480-1 152 g/hm^2）.Compared with 10% bensulfuron-methyl WP and 50% butachlor EC singly use,0.64% Bensulfuron-methyl·butachlor G had extended the herbicidal spectrum,improved the efficacy on weeds,reduced the amount of fertilizer and labor,as well as good overall control effect.These results suggested that ti could be applied to control weed in rice seedling casting fields in South China.

关 键 词：0.64%苄嘧磺隆·丁草胺颗粒剂 水稻抛秧田 杂草 药肥 

分 类 号：S482-4[农业科学—农药学]