Microbial Agents: Effects on Activities of Urease and Catalase in Flue-cured Tobacco Rhizosphere Soil

doi:10.11924/j.issn.1000-6850.casb16010019

Abstract

Abstract: To provide references for the application of microbial agents in flue-cured tobacco planting, ‘Yunyan 85’ and ‘Honghuadajinyuan’ were selected as the experimental materials. Based on the addition of microbial agents in nursery substrate, the effects of microbial agents on the activities of urease and catalase in flue-cured tobacco rhizosphere soil were studied. Glial bacillus promoted the urease activity in rhizosphere soil of ‘Yunyan 85’. The urease activity in flue-cured tobacco rhizosphere of ‘Honghuadajinyuan’ was significantly improved by the treatment of EM agents or glial bacillus. In addition, catalase activity in flue-cured tobacco rhizosphere soil was significantly promoted by the mixture of EM agents and glial bacillus, and the activity increased by 10.31% in the rapid growth period and 50.26% in maturity period. However, the catalase activity in flue-cured tobacco rhizosphere soil was significantly reduced by the treatment of microbial agents during ‘Honghuadajinyuan’ growth. In summary, the urease activity in flue-cured tobacco rhizosphere soil of ‘Yunyan 85’ and ‘Honghuadajinyuan’ was promoted by the addition of glial bacillus agents, and the catalase activity in flue-cured tobacco rhizosphere soil of ‘Yunyan 85’ was improved obviously by the mixed treatment of EM agents and glial bacillus agents.

CLC Number:

S154.1

Zeng Qingbin,Li Tao,Wang Changquan,Cai Yan,Yang Junwei,Zhang Ruiping and Li Bin. Microbial Agents: Effects on Activities of Urease and Catalase in Flue-cured Tobacco Rhizosphere Soil[J]. Chinese Agricultural Science Bulletin, 2016, 32(22): 46-50.

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