噁嗪草酮与五氟磺草胺或双草醚混用对水稻机插秧田杂草的防效及水稻的安全性  

Efficacy and Selectivity of Oxaziclomefone 1% SC Mixed with Penoxsulam 25 g/L OD or Bispyribac-sodium 10 % SC in Mechanically Transplanted Paddy Fields

作　　者：张伟星[1,2] 刘清[1,2] 徐建伟[1,2] 韩建平[1,2] 吴小平[1,2] 王红春[3] 

机构地区：[1]江苏省农用激素工程技术研究中心有限公司,江苏常州213001 [2]江苏省激素研究所股份有限公司,江苏常州213001 [3]江苏省农业科学院植物保护研究所,江苏南京210014

出　　处：《杂草学报》2016年第3期39-44,共6页Journal of Weed Science

基　　金：江苏省农业三新工程项目[编号:SXGC[2015]293]

摘　　要：通过田间试验测定了1%噁嗪草酮悬浮剂(SC)与25 g/L五氟磺草胺可分散油悬浮剂(OD)或10%双草醚悬浮剂(SC)桶混使用对机插秧稻田杂草的防效及水稻的安全性。结果表明:1%噁嗪草酮SC 250、300、350 m L/667 m^2与25 g/L五氟磺草胺OD 80 m L/667 m^2混用,1%噁嗪草酮SC 350 m L/667 m^2与10%双草醚SC 10 m L/667 m^2混用,在水稻移栽后7 d毒土撒施及移栽后13 d茎叶喷雾施用对稗属杂草、千金子、鸭舌草、耳叶水苋、异型莎草等杂草的防效均达91%以上,优于对照移栽前2 d 35%丙草胺·苄嘧磺隆可湿性粉剂(WP)80 g/667 m^2毒土撒施+移栽后7 d 50%苯噻酰草胺·苄嘧磺隆WP 75 g/667 m^2毒土撒施处理、移栽后20 d 60 g/L五氟磺草胺·氰氟草酯OD 100 m L/667 m^2茎叶喷雾处理,移栽后7 d施药处理对杂草的防效高于移栽后13 d施药处理。1%噁嗪草酮SC 250、300、350 m L/667 m^2与25 g/L五氟磺草胺OD 80 m L/667 m^2或10%双草醚SC 10 m L/667 m^2桶混在水稻移栽后7 d或13 d处理对机插秧水稻安全。The efficacy and selectivity of oxaziclomefone 1% SC mixed with penoxsulam 25 g/L OD or bispyribac - sodium 10% SC were assessed in mechanically trans-planted paddy fields, oxaziclomefone 1 % SC at 250, 300, and 350 mL/667 m^2 in mixture with penoxsulam 25 g/L OD at 80 mL/667 m^2 or oxaziclomefone 1 % SC 350 mL/667 m^2 in mixture with bispyribac - sodium 10% SC at 10 mL/667 m^2 sprayed at 7 or 13 days after transplanting provided above 91 % control of Echinochloa spp. ,Leptochloa chinensis （L. ） Nees, Monochoria vaginalis （ Burm. f. ） Presl. ^Ammannia arenaria H. B. K . , and Cyperus dijformis L. This level of control was superior to that obtained with pretilachlor, bensulfuron 35% WP used before transplanting followed by mefenacet, bensulfuron 50% WP after transplanting, or penoxsulam, cyhalofop -butyl 60g/L OD applied at 20 days after transplanting. Oxaziclomefone 1 % SC spayed at 250, 300, and 350 mL/667 m^2 mixture with penoxsulam 25 g/L OD or bispyribac - sodium 10% SC at 7 or 13 days after transplan-ting were selective to mechanically transplanted rice.

关 键 词：1%噁嗪草酮SC 25 g/L五氟磺草胺OD 10%双草醚SC 安全性 防效 杂草 机插水稻 

分 类 号：S451[农业科学—植物保护]