| 贝莱斯芽胞杆菌B006对不同水肥条件下娃娃菜生长及软腐病防效的影响 |
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| 引用本文： | 耿妍,张世昌,郭荣君,张爱香,Govrin Eri Moshe,李世东,沈瑞清,罗明.贝莱斯芽胞杆菌B006对不同水肥条件下娃娃菜生长及软腐病防效的影响[J].中国生物防治学报,2021,37(3):531-537. |
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| 作者姓名： | 耿妍 张世昌 郭荣君 张爱香 Govrin Eri Moshe 李世东 沈瑞清 罗明 |
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| 作者单位： | 1. 中国农业科学院植物保护研究所, 北京 100193;2. 河北北方学院, 张家口 075000;3. 宁夏农林科学院植物保护研究所, 银川 750002;4. 新疆农业大学农学院, 乌鲁木齐 830052 |
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| 基金项目： | 宁夏回族自治区重点研发计划重大项目（2019BFF02006）；国家重点研发计划（2019YFD1002000）；内蒙古自治区科技重大专项（ZDZX2018009） |
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| 摘 要： | 贝莱斯芽胞杆菌B006是一株高效生防菌株，但其在不同水肥条件下的防病促生效果尚不明确。本研究通过盆栽试验测定了不同土壤含水量和施肥条件下B006菌剂对娃娃菜生长及对软腐病防效的影响，结果表明：在土壤含水量为14%、施肥量为3.57 g/kg土的条件下，播种时沟施5 g B006菌剂（菌含量为1×107 CFU/g），出苗后浇灌B006菌悬液（3×108 CFU/mL）可明显降低娃娃菜的发病率和病情指数，与相同条件下未施用B006菌剂处理相比，防效达77.4%。在日光温室开展土壤水势、施肥量及B006菌剂施用随机区组交互试验，结果表明：在土壤水势—50 kPa和追肥量1049.5 kg/hm2（N/P/K=18/5/13）条件下，施用B006菌剂可以促进植株生长，与土壤水势和追肥量分别为—50 kPa×1499.3 kg/hm2和—30 kPa×1499.3 kg/hm2的处理相比，娃娃菜产量分别提高了8.6%和11.2%。综上所述，适当少水、少肥并施用贝莱斯芽胞杆菌B006菌剂可以明显控制娃娃菜软腐病的发生，促进植物生长，并显著提高娃娃菜产量。
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| 关 键 词： | 土壤水势 施肥量 贝莱斯芽胞杆菌B006 软腐病 促生增产 |
| 收稿时间： | 2020-11-05 |
Plant Growth Promotion and Soft Rot Disease Control of Chinese Cabbage Affected by Application of Bacillus velezensis B006 under Different Fertigation Conditions |
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| GENG Yan,ZHANG Shichang,GUO Rongjun,ZHANG Aixiang,GOVRIN Eri Moshe,LI Shidong,SHEN Ruiqing,LUO Ming.Plant Growth Promotion and Soft Rot Disease Control of Chinese Cabbage Affected by Application of Bacillus velezensis B006 under Different Fertigation Conditions[J].Chinese Journal of Biological Control,2021,37(3):531-537. |
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| Authors: | GENG Yan ZHANG Shichang GUO Rongjun ZHANG Aixiang GOVRIN Eri Moshe LI Shidong SHEN Ruiqing LUO Ming |
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| Institution: | 1. Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;2. Hebei North University, Zhangjiakou 075000, China;3. Plant Protection Institute, NingXia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China;4. College of Agriculture, Xinjiang Agricultural University, Wulumuqi 830052, China |
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| Abstract: | B. velezensis B006 is a strain with high biocontrol efficiency. However, its efficacy under different fertigation conditions has not been clarified. The plant growth and soft rot disease control of Chinese cabbage affected by the application of B006 agent combined with different soil water content and fertilization were first examined in pot experiment, and the results showed that application of B006 agent at a dosage of 5g (1×107 CFU/g) in each planting furrow during sowing the seeds following pre-dripping of B006 suspension (3×108 CFU/mL) obviously reduced the incidence and severity of soft rot disease when the soil water content was at 14% and fertilization was 3.57 g/kg soil. The control efficacy reached 77.4% in comparison with non-B006 treatment at the same condition. A field trial which combined the application of B006 agent with fertilization, soil water potential in a randomized block interactive design was carried out in the greenhouse, and the results showed that yields increased by 8.6% and 11.2% in B006 treatments under combination of soil water potential and fertilization amount at -50 kPa×1049.5 kg/hm2 (N/P/K=18/5/13), in comparison with non-B006 treatments at the conditions of -50 kPa×1499.3 kg/hm2 and -30 kPa×1499.3 kg/hm2, respectively. In summary, the application of B. velezensis B006 under the conditions of less water and fertilizer can significantly control the occurrence of cabbage soft rot, promote plant growth, and increase the cabbage yield. |
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| Keywords: | water potential fertilization amount B velezensis B006 soft rot disease growth and yield promotion |
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