不同药剂对马铃薯枯萎病的田间防效分析

doi:10.12190/j.issn.2096-1197.2022.05.12

Abstract

Abstract:

【Objective】To clarify the effects of various chemical and biological agents on potato Fusarium wilt and yield in field.【Methods】In a randomized blocks design，30% metalaxyl-hymexazol AS（600，750，900 mL/hm²），Beinong No. 13 FSC（33.00，41.25，55.05 mL/hm²），40% thiophanate-methyl·fludioxonil FS（300.0，400.5，600.0 mL/hm²），Kunyijian microbial agent（1 125 g/hm²）and Yipu microbial agent（3 375 g/hm²） were set as test treatments and no treatment as control. Seedling emergence rate，disease control efficacy and yield were investigated and the traits differences were analyzed by software.【Results】There were no significant differences among treatments and the control（P>0.05），with all seedling emergence rate over 94.00% indicating no inhibition on patoto. 30% metalaxyl-hymexazol AS in 900 mL/hm² spray treatment and the seed dressing treatment of Beinong No. 13 FSC in 55.05 mL/hm² showed best control effect on the disease，with the control efficiency of 66.70% and 64.60%，respectively. The control efficiency of Kunyijian microbial agent and Yipu microbial agent were 59.66% and 58.00%，respectively. 30% metalaxyl-hymexazol AS in 900 mL/hm² spray and Kunyijian microbial agent treatment showed the biggest yield promotion effect with yield increased at 289.03，202.95 kg/hm² and yield promotion rate at 19.50% and 15.28%，respectively. While yield and yield promotion rate of 40% thiophanate-methyl·fludioxonil FS in 300.0 mL/hm² were 60.03 kg/hm² and 3.70%，respectively.【Conclusion】The agents were safe to potato. The spraying treatment of 30% metalaxyl-hymexazol AS in 900 mL/hm²，seed dressing treatment of Beinong No. 13 FSC in 55.05 mL/hm²，and seed dressing treatment of Kunyijian microbial in 1 125 g/hm² showed higher control efficiency and yield promotion effect which will be effective agents for potato Fusarium wilt control.

Key words: Potato, Fusarium wilt, Control efficiency, Seedling emergence rate, Yield

CLC Number:

S436.32

ZHAO Yuanzheng, PENG Jingwen, HOU Weifeng, MU Yingnan, LU Jingshi, BAI Jinjiang, XU Limin. Analysis of different agents control effect on potato Fusarium wilt[J].Journal of Northern Agriculture, 2022, 50(5): 82-86.

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URL: https://journal30.magtechjournal.com/bfnyxb/EN/10.12190/j.issn.2096-1197.2022.05.12

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Analysis of different agents control effect on potato Fusarium wilt

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