一季中晚稻旱直播田化学除草研究  

Studying on chemical control technology of the weeds of the dry direct-seeded rice of single-middle-late season

作　　者：刘怀珍[1] 李康活[1] 黄庆[1] 陆秀明[1] 张彬[1] 李惠芬[1] 邹积祥[1] 周少川[1] 

机构地区：[1]广东省农业科学院水稻研究所/广东省水稻育种新技术重点实验室,广东广州510640

出　　处：《广东农业科学》2013年第16期4-7,共4页Guangdong Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAD89B14);农业部公益性行业(农业)科研专项(200803028;201103001);农业部农业结构调整重大技术研究专项(06-03-07B);广东省财政厅项目(粤财预[2005]11号;粤财教[2006]187号);广东省科技厅农业攻关项目(2005B20101001)

摘　　要：2012年在惠州会达菜场以除草剂(直播净、秧歌和丁草胺)为主处理、施用方法(土壤处理、幼苗处理和综合处理)为副处理进行了一季中晚稻旱直播田化学除草研究。结果表明:在土壤湿润的条件下,播种后当天或第2 d每667 m2用80 g直播净(主要成分为36%丙草胺+4%苄嘧磺隆)兑水50 kg喷施或用200 g秧歌(23.9%丁草胺+1.1%苄嘧磺隆)混细砂15 kg撒施,可有效控制一季中晚稻旱直播田的草害。In this paper the field experimentation was conducted during in 2012 in Huida Farm,Huizhou County,Guangdong Province.The main treatment is herbicide（Pretilachlor ＋ Bensulfuron-methyl,Yangguo and Butachlor）,the sub-treatment is application method（soil treatments,seedling treatment and integrated treatment）.Results of investigation showed that under the soil moist conditions two methods can significantly controlled weed when were applied at 1 or 2 days after the seeding.one which 80 g of 36% Pretilachlor＋4% Bensulfuron-methyl deluted to 50 kg of water was sprayed on the leaves of the weed per 667 m^2;another which 200 g of 23.9% Butachlor ＋1.1% Bensulfuron-methyl mixed with 15 kg of sandy soil were applied on the pad per 667 m^2.

关 键 词：一季中晚稻 旱直播田 化学除草 

分 类 号：S481.9[农业科学—农药学]