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中国农学通报 ›› 2021, Vol. 37 ›› Issue (9): 149-154.doi: 10.11924/j.issn.1000-6850.casb2020-0246

所属专题: 植物保护 马铃薯

• 植物保护·农药 • 上一篇    下一篇

新型除草剂氟咯草酮在青海高原马铃薯田的应用及安全性

李玮1,2,3()   

  1. 1青海大学农林科学院,西宁 810016
    2农业农村部西宁作物有害生物科学观测实验站,西宁 810016
    3青海省农业有害生物综合治理重点实验室,西宁 810016
  • 收稿日期:2020-07-07 修回日期:2020-09-28 出版日期:2021-03-25 发布日期:2021-04-09
  • 作者简介:李玮,男,1981年出生,黑龙江七台河人,副研究员,硕士,研究方向:农田杂草综合防治。通信地址:810016 青海省西宁市城北区宁大路253号 青海省农林科学院植保所,Tel:0971-5313283,E-mail: lwbabylw@163.com
  • 基金资助:
    国家自然基金“手性除草剂氟咯草酮在青海高原马铃薯生态系统中选择性环境行为及生物活性差异研究”(31860512);青海省应用基础研究项目“手性除草剂氟咯草酮在高原马铃薯田的应用及安全风险评估”(2018-ZJ-716);青海省农林科学院创新基金“手性除草剂氟咯草酮在高原马铃薯田生态系统中的立体选择性环境行为研究”(2017-NKY-08)

A New Herbicide Flurochloridone in Potato Field on Qinghai Plateau: Application and Safety

Li Wei1,2,3()   

  1. 1Academy of Agriculture and Forestry, Qinghai University, Xining 810016
    2Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture and Rural Affairs, Xining 810016
    3Key Laboratory of Agricultural Integrated Pest Management of Qinghai, Xining 810016
  • Received:2020-07-07 Revised:2020-09-28 Online:2021-03-25 Published:2021-04-09

摘要:

为了探索新型除草剂氟咯草酮在青海高原马铃薯田的安全应用技术,以青海主栽马铃薯品种‘青薯9号’为试验材料,采用农药登记田间药效试验和马铃薯品质分析方法,测得氟咯草酮最佳使用剂量、使用方式及品质指标等数据。结果表明,氟咯草酮在马铃薯田使用中的剂量推荐为350~650 g a.i./hm2;最佳使用时期为播后苗前,一般在马铃薯播种后15~20天;最优使用方式为土壤封闭处理,对单双子叶杂草综合防效达到80%以上,增产10.15%以上,且对马铃薯品质中重要的参数指标粗淀粉含量、维生素C含量、还原糖含量和干物质量无影响,氟咯草酮可在青海高原马铃薯田乃至西北马铃薯种植区作为主要除草剂推广应用。

关键词: 氟咯草酮, 马铃薯, 防效, 田间应用, 品质

Abstract:

To explore the safety application technology of the new herbicide flurochloridone in potato field on Qinghai Plateau, the potato variety ‘Qingshu 9’ was used as material, pesticide registration field efficacy trials and potato quality analysis were conducted, and the best dosage, application mode and quality index data of flurochloridone were measured. The results show that the effective dose of flurochloridone in potato field is recommended to be 350-650 g a.i./hm 2, the best application time is after sowing and before seedling, usually at 15-20 d after sowing. The best application mode is to seal the soil. The comprehensive control effect of Flurochloridone on monocotyledonous and dicotyledonous weeds could be more than 80%, and the yield could be increased by more than 10.15%, and it had no effect on the important parameters of the content of starch, Vc and reducing sugar and the dry matter quality. Therefore, Flurochloridone can be popularized as the main herbicide in potato fields on Qinghai Plateau and potato growing areas in northwest China.

Key words: Flurochloridone, potato, control efficacy, field application, quality

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