几种杀菌剂对荞麦茎溃疡病菌的生物活性和田间防治效果
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郭婷, 刘雨薇, 吴进蓉, 班瑞娟, 岳文冉, 李哲, 王莉花, 张笑宇
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Biological Activity and Field Control Effects of Several Fungicides against Buckwheat Stem Canker by Rhizoctonia spp.
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Guo Ting, Liu Yuwei, Wu Jinrong, Ban Ruijuan, Yue Wenran, Li Zhe, Wang Lihua, Zhang Xiaoyu
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表3 2019年4种杀菌剂不同浓度对荞麦茎溃疡病的田间防治效果
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Table 3 Field control effectiveness of 4 fungicides with different concentrations against buckwheat stem canker by Rhizoctonia spp. in 2019
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药剂 Fungicide | 用药量 Dosage (/hm2) | 病情指数 Disease index | 防治效果 Control efficiency (%) | 千粒重 1000-seed weight (g) | 产量 Yield (kg/hm2) | 增产 Increase production (%) | 空白对照Blank control | | 59.2±3.6b | | 24.0±2.8a | 1281.0±15.6abc | | 接菌对照Inoculation control | | 75.6±4.1a | | 20.5±3.9a | 976.5±42.5e | | 40%氟硅唑EC Flusilazole 40% EC | 225.000 mL | 27.2±2.7e | 64.02±3.59a | 27.5±3.5a | 1353.0±60.7a | 38.56 | 150.000 mL | 32.1±3.9cde | 57.54±5.19abcd | 26.6±2.4a | 1194.0±37.2abcd | 22.27 | | 75.000 mL | 39.4±3.0cd | 47.88±3.97bcd | 20.6±1.9a | 1117.5±52.0cde | 14.44 | 25 g/L咯菌腈FS Fludioxonil 25 g/L FS | 100.050 mL | 30.0±3.9cde | 60.32±5.10abc | 26.9±2.1a | 982.7±44.2e | 0.41 | 90.000 mL | 33.2±2.5de | 56.08±3.28abcd | 23.0±3.8a | 1088.7±71.9de | 7.48 | | 81.000 mL | 32.3±3.3cde | 57.28±4.35abcd | 24.4±1.4a | 986.7±47.9e | 0.68 | 250 g/L吡唑·醚菌酯EC Pyraclostrobin 250 g/L EC | 2250.000 mL | 36.1±1.9cde | 52.25±2.52abcd | 23.6±2.8a | 1302.0±65.9ab | 33.33 | 1125.000 mL | 39.6±3.7cd | 47.62±4.89cd | 24.6±1.9a | 1149.0±56.2bc | 17.67 | | 750.000 mL | 41.2±4.7c | 45.50±6.26cd | 27.7±2.7a | 1128.0±59.7cde | 15.51 | 40%福美·拌种灵WP Thiram·Seedvax 40% WP | 0.450 g | 36.3±3.4cde | 51.98±4.43abcd | 23.2±3.7a | 1033.5±56.3de | 5.84 | 0.225 g | 41.6±3.4c | 44.97±4.43d | 21.9±2.1a | 1056.0±68.4de | 8.14 | | 0.150 g | 28.0±3.8de | 62.96±4.96ab | 22.0±3.9a | 1114.5±48.8cde | 14.13 |
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