| 2%双唑草腈颗粒剂对机插秧稻田杂草的防效及水稻的安全性 |
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| 引用本文： | 徐蓬,王红春,吴佳文,肖慰祖,汪亚雄,娄远来.2%双唑草腈颗粒剂对机插秧稻田杂草的防效及水稻的安全性[J].杂草科学,2016(3):45-49. |
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| 作者姓名： | 徐蓬 王红春 吴佳文 肖慰祖 汪亚雄 娄远来 |
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| 作者单位： | 1. 南京农业大学植物保护学院,江苏南京 210095;江苏省农业科学院植物保护研究所,江苏南京 210014;2. 江苏省农业科学院植物保护研究所,江苏南京,210014;3. 江苏省植物保护检疫站,江苏南京,210013;4. 南京农业大学生命科学学院,江苏南京,210095 |
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| 基金项目： | 江苏省农业三新工程项目(SXGC(2015)293) |
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| 摘 要： | 通过田间小区试验验证了2%双唑草腈颗粒剂(GR)对机插秧稻田杂草的防效及对水稻的安全性。结果表明:机插秧水稻移栽后12 d,2%双唑草腈GR 600 g/667 m~2及其以上剂量撒施处理对机插秧田稗属杂草、千金子、鸭舌草、耳叶水苋、鳢肠、异型莎草等杂草的株数和鲜质量防效优于机插秧稻田常规2次封闭施药处理(移栽前3 d 50%苯噻·苄WP 70 g/667 m~2毒土撒施+移栽后12 d 50%丙·苄WP 80 g/667 m~2毒土撒施),且对水稻安全。水稻移栽后12 d 2%双唑草腈GR 600 g/667 m~2撒施处理1次用药可有效控制机插秧稻田稗属杂草、千金子、鸭舌草、耳叶水苋、鳢肠、异型莎草等杂草,具有节本减药的综合效益,且对水稻安全,在机插秧稻田的推广应用前景广阔。
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| 关 键 词： | 双唑草腈 水稻 机插秧 除草活性 安全性 |
The Efficacy and the Selectivity of Pyraclonil 2% GR in Mechanically Transplanted Rice Fields |
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| Abstract: | Field experiments were conducted to confirm the efficacy and selectivity of pyraclonil 2% granules (GR) in mechanically transplanted rice fields. Pyraclonil 2% GR applied at the dose of 600 g/667 m2 efficiently controlled Echinochloa spp. ,Leptochloa chinensis (L. ) Nees. ,Monochoria vaginalis (Burm. F. ) Presl. ,Ammannia arenaria H. B. K. ,Eclipta prostrata (L) L. ,and Cyperus difformis L. at 12 days after transplanting in mechanically transplanted rice fields. The control effects of pyraclonil 2% GR applied at the dose of 600 g/667 m2 were significantly higher than control treatment. Pyraclonil 2% GR applied at 450 g/667 m2 to 1 200 g/667 m2 at 12 days after transplanting were safe to mechanically transplanted rice. |
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| Keywords: | pyraclonil rice mechanically transplanted rice herbicidal activity safety |
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