复合微生物制剂改善土壤生物学特性和防治烟草黑胫病的研究
作者:
作者单位:

(1.云南省烟草农业科学研究院,云南 昆明 650021;2.中国农业科学院农业资源与农业区划研究所,北京 100081)

作者简介:

夏振远(1971-),男,内蒙古宁城人,研究员,硕士,主要从事烟草病理学研究。E-mail:zhenyuanxia@qq.com。

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基金项目:

基金项目:中国烟草总公司云南省公司科技计划重点项目(2017


Evaluation of compound microbial agents in management of soil physical and chemical properties and biocontrol of tobacco black shank
Author:
Affiliation:

(1.Yunnan Academy of Tobacco Agricultural Science,Kunming Yunnan 650021;2.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081)

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    摘要:

    烟草是我国重要的经济作物,利用微生物制剂改善土壤性质,防治烟草土传病害是实现绿色防控的重要途径。利用实验室已筛选的多功能有益微生物进行复配,研究了两种复合微生物制剂T1(芽孢杆菌、假单胞菌、不动杆菌)和T2(芽孢杆菌、假单胞菌、鞘氨醇菌)对土壤理化性质的影响以及对烟草黑胫病的防治效果。结果表明,与未施用微生物制剂的对照相比,T1和T2均显著提高了土壤脱氢酶、脲酶和蔗糖酶活性,同时也显著提高了土壤微生物量碳、微生物量氮和土壤呼吸强度,且T2与T1相比效果更为突出。制剂T2还显著提高了土壤过氧化氢酶活性,降低了微生物代谢熵,而T1则无显著影响。病害防治试验显示,T1对烟草黑胫病的防效约22.7%;T2的防效显著高于T1,达到76.4%。由此表明,本研究创制的复合微生物制剂T2具有潜在改善土壤生物特性、防治烟草黑胫病的应用价值。

    Abstract:

    Tobacco as the world’s most important non-food agricultural crop has great economic importance in China. It is a vital manner for tobacco green management using microbial agents to regulate soil properties and control soil-borne diseases.In this study,four beneficial bacterial strains were used to make two compound microbial agents which were determined the effect on soil physical and chemical properties and tobacco black shank. Agent T1 was composed by Bacillus sp. S711,Pseudomonas sp. S1130 and Acinetobacter sp. S1063 while T2 included Bacillus sp. S711,Pseudomonas sp.S1130 and Sphingobium sp. S1191. Both agents T1 and T2 increased the enzymatic activities of soil dehydrogenase,urease and sucrase,and also improved soil microbial biomass carbon and nitrogen,even the intensity of soil respiration. Importantly,the results indicated that T2 was more efficient than T1.Compared to agent T1,T2 specifically increased the enzymatic activity of catalase and decreased soil microbial metabolic quotient. Agent T2 had a high control efficiency at 76.4% for tobacco black shank,which is significantly higher than treated by T1,which had a very low control efficiency at 22.7%.These results suggest that the compound microbial agent T2 would be potentially used in soil management and biological control of soil-borne diseases.

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夏振远,谷医林,张宏越,魏海雷.复合微生物制剂改善土壤生物学特性和防治烟草黑胫病的研究[J].中国土壤与肥料,2021,(1):192-196.

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  • 收稿日期:2019-12-13
  • 最后修改日期:
  • 录用日期:2020-01-04
  • 在线发布日期: 2021-03-18