Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2016, Vol. 27 ›› Issue (3): 829-837.doi: 10.13287/j.1001-9332.201603.012

• contents • Previous Articles     Next Articles

Effects of bio-organic fertilizer on soil enzyme activities and microbial community in kiwifruit orchard

SUN Jia-jun1, FU Qing-xia2, GU Jie1,3*, WANG Xiao-juan1, GAO Hua1,3   

  1. 1Collage of Resource and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China;
    2Nantong Binhai Park Administrative Committee, Nantong 226000, Jiangsu, China;
    3Shaanxi Province Research Center of Recycle Agricultural Engineering and Technology, Yangling 712100, Shaanxi, China
  • Received:2015-07-08 Online:2016-03-18 Published:2016-03-18
  • Contact: * E-mail: gujoyer@sina.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (41171203), the Special Fund for Agro-scientific Research in the Public Interest (201303094) and the Scientific Planning Project of Yangling Demonstration Zone, China (2015NY-25).

Abstract: A field experiment was conducted to compare the effects of three fertilizer managements (bio-organic fertilizer, traditional organic fertilizer and chemical fertilizer) and a no-fertilizer control on soil enzyme activities and microbial community functional diversity in a kiwifruit orchard. The results showed that the soil invertase and FDA hydrolase activities in the bio-organic fertilizer treatment were 12.2%-129.4% and 18.8%-87.4% higher than those in the no-fertilizer control during kiwifruit growth period, respectively. The application of bio-organic fertilizer also increased soil urease and acid phosphatase activities at the expanding stage and maturity stage. The Biolog results suggested that bio-organic fertilizer treatment improved the average well color development (AWCD) and increased the species diversity, richness and evenness. The relative ratios of six groups of carbon sources by microbes were changed to some extent after the application of bio-organic fertilizer. Compared with the no-fertilizer control, bio-organic fertilizer application decreased the capacity of microbes in using amino acids, but enhanced the utilization of polyphenols and polyamines. The principal components analysis demonstrated that the differentiation of microbial community was mainly in utilization of carbohydrates, amino acids and carboxylic acids.