除草剂药后不同间隔时间移栽对稻茬免耕油菜生长发育的影响  

Effects of Different Transplanting Time on Growth of No-tillage Rape in Rice Field after Spraying Herbicides

作　　者：何永福 叶照春 陆德清 段婷婷 廖国会 袁洁 周应友 刘垚 明罗绍 

机构地区：[1]贵州省植物保护研究所,贵州贵阳550006 [2]贵州省遵义县农林畜牧局农业技术推广站,贵州遵义563100 [3]贵州省平坝县植保植检站,贵州平坝561100

出　　处：《贵州农业科学》2011年第11期122-125,共4页Guizhou Agricultural Sciences

基　　金：贵州省科技厅年度攻关项目"稻茬免耕油菜化学除草技术规程制定研究与示范"[黔科合NY字(2009)3013];贵州省科技厅带帽项目"贵州省主要农作物病虫草害预测预报及防控技术研究"[黔科合带帽字(2007)5003]

摘　　要：为稻茬免耕移栽油菜田科学使用除草剂提供依据,采用41%草甘膦异丙铵盐与200g/L百草枯水剂对稻茬免耕油菜进行了田间试验,研究了其对稻茬免耕油菜生长发育的影响。结果表明,41%草甘膦异丙胺盐水剂在施药当天、药后1～4d移栽,油菜苗均出现药害症状,特别是施药当天及药后1～2d移栽油菜苗药害最重,应间隔5d后移栽药害较轻;200g/L百草枯水剂可以在施药当天移栽油菜苗,但最好在药后第2天移栽油菜最为安全。The rape seedlings were transplanted in the no-tillage rice field sprayed with 41% glyphosate isopropylammonium or 200g/L paraquat to study the effects of herbicides on growth of rape and to provide the scientific basis for rational application of herbicides in rape no-tillage transplanting cultivation.The results showed that spraying 41% glyphosate isopropylammonium in no-tillage rice field damaged to growth of the transplanted rape seedlings within four days,especially 1～2d after spraying and the optimum transplanting time should be the fifth day after spraying.The rape seedlings could be transplanted in the no-tillage rice field sprayed with 200g/L paraquat in the same day,but the optimum transplanting time was the second day after spraying.

关 键 词：油菜 免耕移栽 除草剂 药害 

分 类 号：S565.450.53[农业科学—作物学]