烟草科技2019，Vol.52Issue(2)：12-18,61,8.
秸秆还田和腐熟有机肥对植烟土壤养分、酶活性及微生物多样性的影响
Effects of straw returning and decomposed organic manure on soil nutrient contents, enzyme activities and microbial diversity for tobacco-planting
樊俊 1谭军 1王瑞 1赵秀云 2李伟1
作者信息
- 1. 湖北省烟草公司恩施州公司技术中心,湖北省恩施市市府路65号 445000
- 2. 华中农业大学生命科学技术学院,武汉市洪山区狮子山街1号 430070
- 折叠
摘要
Abstract
To investigate the effects of different organic materials on soil amelioration, a field experiment was conducted from 2015 to 2017. The effects of rice straw returning, maize stalk returning, tobacco stalk returning and decomposed organic manure on the nutrient contents, enzyme activities, microbial quantity and functional microbes in tobacco-planting soils were studied. The results showed that straw returning and decomposed organic manure increased the contents of organic carbon, available potassium, zinc, magnesium and boron. Comparing with the control, the activities of invertase, urease and phosphatase were increased by 55.0%, 25.1% and 129.5%, respectively. Especially, decomposed organic manure had an excellent effect. Under the treatments of straw returning and decomposed organic manure, the total amount of OTUs of soil microbes were 8 038-8 643 and increased by 7.4%-15.5% comparing with the control. Decomposed organic manure promoted the community diversity and abundance of microbes and decreased the relative abundance of nitrogen-fixing microbes. Straw returning decreased the relative abundances of nitrification and denitrification microbes and improved the relative abundance of nitrogen-fixing microbes and their nitrogen-fixing ability. Straw returning and decomposed organic manure reduced the relative abundance of pathogenic bacteria in tobacco-planting soils, decomposed organic manure decreased by 37.9% comparing with the control, and its susceptible risk reducing effect was better than straw returning. In conclusion, the effects of decomposed organic manure were morebeneficialtotobaccoproductionthanstrawreturning.关键词
植烟土壤/秸秆还田/腐熟有机肥/养分/酶活性/微生物Key words
Tobacco-planting soil/Straw returning/Decomposed organic manure/Nutrient/Enzyme activity/Microbe分类
农业科技引用本文复制引用
樊俊,谭军,王瑞,赵秀云,李伟..秸秆还田和腐熟有机肥对植烟土壤养分、酶活性及微生物多样性的影响[J].烟草科技,2019,52(2):12-18,61,8.
