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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (33): 120-126.doi: 10.11924/j.issn.1000-6850.casb20200300197

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Cenchrus pauciflorus in Khorchin: The Screening of Chemical Control Herbicide

Yang Xiaosong1(), Wen Chao2,3, Jia Weixing1, Jiang Lan1, Si Riguleng1, Zhang Jun1, Chu Jingfen1, Yang Shuai1, Shan Yumei2,3(), Xie Yourong4, Yu Lan5   

  1. 1Tongliao City Animal Husbandry and Veterinary Science Institute, Tongliao Inner Mongolia 028000
    2Inner Mongolia Research Center for Prataculture, Chinese Academy of Sciences, Hohhot 010031
    3Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031
    4Tongliao Plant Protective and Examinational Station, Tongliao Inner Mongolia 028000
    5Tongliao Services Center for National Agricultural Science and Technology Park Development, Tongliao Inner Mongolia 028000
  • Received:2020-03-10 Revised:2020-05-04 Online:2020-11-25 Published:2020-11-18
  • Contact: Shan Yumei E-mail:yxs45.good@163.com;shanym2008@163.com

Abstract:

In the invasion area of Cenchrus pauciflorus in Khorchin, in order to select the suitable chemical control herbicide in Khorchin area, different chemical control herbicides and combinations were used as test materials, the method combining field investigation with lab analysis was adopted to obtain the experimental data of the effects of different herbicide treatments and spraying time on control, relative control and vegetation coverage. The results showed the effects were significant. The optimal insecticide for the control and relative control on Cenchrus pauciflorus was 41% Glyphosate-Isopropylammonium, followed by 10% quizalofop-p-ethyl, 10% quizalofop-p-ethyl mixed with 90% acetochlor, 12.5% sethoxydim and 10.8% haloxytop-r-methyl. However, in view of vegetation coverage, the suitable herbicides were 10% quizalofop-p-ethyl, 12.5% sethoxydim, 5% imazethapyr, 23.5% sethoxydim and 10.8% haloxytop-r-methyl. In conclusion, the appropriate chemical control herbicides include 10% quizalofop-p-ethyl, 12.5% sethoxydim and 10.8% haloxytop-r-methyl in Khorchin, and only spraying once could obtain better effects.

Key words: Cenchrus pauciflorus, herbicide, screen, chemical control, Khorchin

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