62%丁草胺·噁草酮微乳剂对稻田3种杂草的防治效果  

Control effect of 62% Butachol·Oxadiazon microemulsion on three weeds in transplanted rice field

作　　者：涂爱萍[1] 胡洪涛[2] 朱文达[3] 李林[3] 

机构地区：[1]湖北生物科技职业学院园艺系,武汉430070 [2]湖北生物科技职业学院生物工程系,武汉430070 [3]湖北省农业科学院植保土肥所,武汉430064

出　　处：《华中农业大学学报》2015年第3期42-45,共4页Journal of Huazhong Agricultural University

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A09)

摘　　要：通过田间试验,观察62%丁草胺·噁草酮微乳剂对移栽稻田3种主要杂草的防治效果,以及杂草防除后对田间光照、水肥的影响。结果表明：施用药剂后,能有效防除稻田3种主要杂草,对稗草Echinochloa crusgalli（L.）Beauv、异型莎草（Cyperus difformis L.）和鸭舌草Monochoria vaginalis（Burm.f.）的综合密度防效和综合鲜质量防效分别达到88.09%-98.91%和88.06%-98.31%;杂草防除后,田间透光率增加3-4倍,杂草对氮、磷、钾和水分的吸收减少85%以上,水稻增产33.46%-40.04%。In this study, the field experiment was conducted to investigate the control effect of 62% Butachol ~ Oxadiazon microemulsion on three weeds in the transplanted rice field, including Echinochloa crusgalli L. Beauv, Cyperus difforrnis L. and Monochoria vaginalis （Burm. f. ）. Additionally, the influence of weed control on the absorption of nutrition and the yield of weeds was examined as well. The results revealed that 62 % Butachol · Oxadiazon microemulsion can effectively control the three dominant weeds, with the control effects of weed density and fresh weight being 88. 09%-98. 91% and 88. 06%- 98. 31%, respectively. After weed control, the light penetration rate in the rice field was significantly increased 3-4 folds, the weeds＇ absorption of water and nutrition was significantly decreased more than 85%, and the yield of rice was increased 33.46%-40.04%.

关 键 词：水稻 杂草 丁草胺·噁草酮 防治效果 

分 类 号：S451.21[农业科学—植物保护] S511