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.
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]
