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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (4): 132-138.doi: 10.11924/j.issn.1000-6850.casb2022-0099

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Effect of Main Farming Systems in Guizhou on the Occurrence and Damage of Ageratum conyzoides

YE Zhaochun(), RAN Haiyan, CHEN Shihong, LAN Xianmin   

  1. Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550006
  • Received:2022-02-24 Revised:2022-09-16 Online:2023-02-05 Published:2023-01-31

Abstract:

To explore the correlation between the main farming systems and the invasive damage of Ageratum conyzoides in Guizhou, the main invasion areas were selected for 3-year fixed-point tracking monitoring. The results showed that there were 51 species of weeds in the monitored fields, and A. conyzoides had the highest field coverage and highest relative abundance, its value of field coverage ranged from 50.03 to 66.54 with the 3-year average value of 59.11, and its relative abundance ranged from 36.98 to 59.59 with the 3-year average of 46.27. The damage of A. conyzoides in Guizhou was much greater than that of other weeds, and its damage remained stable in general. A long-term single farming management mode could result in the occurrence and damage of A. conyzoides. Therefore, it is suggested that the farming system should be changed in time in agricultural production, and more field management methods should be adopted to control the invasion and damage of A. conyzoides.

Key words: farming system, Ageratum conyzoides, weed community, occurrence and damage, monitoring