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<p>The objectives of this study were to evaluate the dynamic effects of the specific herbicide on soil ecology and microbial community function in oat fields. We conducted a two-year field experiment to determine the oat yield and weed control efficiency by applying four herbicides which are Butralin, Bromoxynil octanoate plus 4-chloro-2-methylphenoxyacetic acid sodium (BOMS), Tribenuron-methyl, 2, 4-D butylate. BOMS treatment was selected for further study due to the oat yield increase of 23.2% than the no herbicide control (CON). The soil biochemical properties, and the culturable microorganisms’ numbers, along with four soil enzymes activities (urease, sucrase, phosphatase, and catalase) in a 0–20&#xa0;cm soil profile at 5, 15, 25, 40, and 60 days after application (DAT) under three concentrations of BOMS with low dose (675&#xa0;ml·ha<sup>− 1</sup>), the commodity-recommended dose (RAD) (1350&#xa0;ml·ha<sup>− 1</sup>), and the high dose (2025&#xa0;ml·ha<sup>− 1</sup>) were monitored. Compared to the CON, the BOMS-treated soils fungi numbers showed the biggest decline. BOMS may continuously inhibit soil alkaline phosphatase activity and soil catalase activity. Principal components analysis (PCA) showed that the effect of soil microbial communities was greater than that of soil fertility quality, and BOMS had a fleeting negative effect on soil microbes and enzymes within 40 DAT in oat field. Overall, our results suggest that applying BOMS at a dose 675&#xa0;ml·ha<sup>− 1</sup> will increase oat grain yield while it is safe for soil ecology in oat fields.</p>

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Screening of Herbicides and Disturbance Effects upon Use of Benzonitrile Herbicide BOMS on Soil Microecology in Oat Field

  • 期刊论文

  • 发表日期：

    2025年1月2日

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  • Huan Liu,
  • Jennifer Schug,
  • Changning Li,
  • Ruirui Yao,
  • Guiqin Zhao,
  • Yujie Niu

摘要

The objectives of this study were to evaluate the dynamic effects of the specific herbicide on soil ecology and microbial community function in oat fields. We conducted a two-year field experiment to determine the oat yield and weed control efficiency by applying four herbicides which are Butralin, Bromoxynil octanoate plus 4-chloro-2-methylphenoxyacetic acid sodium (BOMS), Tribenuron-methyl, 2, 4-D butylate. BOMS treatment was selected for further study due to the oat yield increase of 23.2% than the no herbicide control (CON). The soil biochemical properties, and the culturable microorganisms’ numbers, along with four soil enzymes activities (urease, sucrase, phosphatase, and catalase) in a 0–20 cm soil profile at 5, 15, 25, 40, and 60 days after application (DAT) under three concentrations of BOMS with low dose (675 ml·ha− 1), the commodity-recommended dose (RAD) (1350 ml·ha− 1), and the high dose (2025 ml·ha− 1) were monitored. Compared to the CON, the BOMS-treated soils fungi numbers showed the biggest decline. BOMS may continuously inhibit soil alkaline phosphatase activity and soil catalase activity. Principal components analysis (PCA) showed that the effect of soil microbial communities was greater than that of soil fertility quality, and BOMS had a fleeting negative effect on soil microbes and enzymes within 40 DAT in oat field. Overall, our results suggest that applying BOMS at a dose 675 ml·ha− 1 will increase oat grain yield while it is safe for soil ecology in oat fields.