Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (6): 1539-1542.DOI: 10.16178/j.issn.0528-9017.20250966

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Weed control efficacy of different herbicides in barley fields and their impact on barley yield

PAN Liqing1(), GU Guowei1, LU Liming1, XIE Chongcong2, YE Lingzhen3   

  1. 1.Yuyao Agricultural Technology Extension Service Station,Yuyao 315400,Zhejiang
    2.Yuyao City Ketai Farm,Yuyao 315450,Zhejiang
    3.College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,Zhejiang
  • Received:2025-12-29 Online:2026-06-11 Published:2026-06-12

Abstract:

In this experiment,herbicides including 36% diuron diflufenican suspension concentrate(Fengqu),50% isoproturon suspension concentrate(Sumailong),3.6% mesosulfuron-methyl & iodosulfuron-methyl sodium water-dispersible granule(Kuoshima),and 55% diflufenican & isoproturon suspension concentrate (Jichu)were selected for weed control in barley fields to evaluate their efficacy and safety. The results showed that Jichu exhibited the best control effect against the weeds of Gramineae,with plant control efficacy and fresh weight control efficacy reaching 67.9% and 75.5%,respectively. Moreover,it was safe for barley and increased yield by 8.9%. Although the mixed treatment of Fengqu and Sumailong as well as the Kuoshima treatment showed good weed control efficacy,both caused phytotoxicity and resulted in yield reduction. The mixed treatment of pinoxaden and carfentrazone-ethyl and the single application of isoproturon showed poor control efficacy. This study provides a basis for selecting appropriate herbicides for scientific weed control in barley fields in the Jiangsu-Zhejiang region.

Key words: barley, herbicide, safety, yield increase

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