解草啶包衣减轻丙草胺对栽培稻药害的技术  

Reduction Technology of Fenclorim Coating to Cultivated Rice Injury Caused by Pretilachlor

作　　者：吕敏[1] 杨倩 卫甜 朱锦磊[1] LYU Min;YANG Qian;WEI Tian;ZHU Jinlei(Institute of Agricultural Sciences in Lixiahe District of Jiangsu,Yangzhou 225007,China)

机构地区：[1]江苏里下河地区农业科学研究所,江苏扬州225007

出　　处：《杂草学报》2024年第1期77-82,共6页Journal of Weed Science

基　　金：扬州市科技计划(现代农业)项目(编号:YZ2022048);江苏现代农业产业技术体系建设项目(编号:JATS[2023]248)。

摘　　要：为了探寻高效防除杂草稻且对栽培稻安全的杂草治理技术,研究解草啶包衣对减轻丙草胺药害以及防治杂草稻的潜力。对栽培稻种子进行不同浓度(4%、7%、10%、13%、16%)解草啶包衣处理,以不含解草啶的种衣剂处理为对照(CK),分别研究不同浓度解草啶包衣处理对栽培稻种子萌发、幼苗生长发育和茎叶重、根重的影响,以及10%解草啶包衣处理对丙草胺防控杂草稻的药效的影响。结果表明,不同浓度解草啶包衣对栽培稻种子萌发均无显著差异;除最高浓度(16%)解草啶包衣处理之外,其他浓度处理对栽培稻幼苗的生长发育均无显著影响;解草啶添加浓度为10%时,栽培稻茎叶、根的鲜重抑制率均最低,说明其对栽培稻的保护效果最好。丙草胺防效结果表明,10%解草啶种子包衣处理对丙草胺防除杂草稻药效无显著影响。因此,推荐对栽培稻种子进行10%解草啶种子包衣处理,并在播后苗前施用丙草胺防除水稻田杂草稻。In this work,the concentrations of fenclorim coating were 4%,7%,10%,13%and 16%,and fenclorim coating free was check(CK).To explore technology for efficient control of weedy rice and selection to cultivated rice,we studied reduction technology of fenclorim coating to cultivated rice injury caused by pretilachlor and potential for weedy rice control,and then analysised effect of fenclorim coating with different concentrations on seed germination,seedling growth and development and weight of stem-leaf and root of cultivated rice,especially determined effect of pretilachlor on control efficacy of fenclorim coating with the concentration of 10%against weedy rice.The results showed that fenclorim coating with different concentrations had no significant effect on seed germination,seedling growth and development of cultivated rice,except that fenclorim coating with the highest concentration of 16%had significant effect on seedling growth and development.Fenclorim coating with the concentration of 10%had the best protective effect on cultivated rice duing to the inhibition rates of fresh weight of stem,leaf and root were the lowest.And fenclorim coating with the concentration of 10%had no significant effect on the efficacy of pretilachlor against weedy rice.Therefore,fenclorim coating with the concentration of 10%was recommended to be applied in cultivated rice fields,and pretilachlor was used to control weedy rice before seedling after sowing.

关 键 词：解草啶 包衣 安全性 杂草稻 丙草胺 防控技术 

分 类 号：S482.40[农业科学—农药学] S482.92[农业科学—植物保护]