Effects of Different Nitrogen Levels on Tea Rhizosphere Microbial Community and Its Role in Adjusting Soil Nutrients

doi:10.7668/hbnxb.20190114

Abstract

Abstract: A pot trial was conducted with four nitrogen treatments (N0,N1,N2,N3) to investigate the changes in rhizosphere nutrients, microbial community and their internal relations to provide theoretical basis for the scientific application of nitrogen fertilizer in tea garden. Results showed that compared with CK(N0), the optimum application of nitrogen fertilizer increased the quantity of soil bacteria, fungi and actinomyces, and improved the soil microbial community diversity in tea rhizosphere. It also stimulated the content of alkaline nitrogen, available phosphorus, available potassium and organic matter in tea rhizosphere soil. Besides, the correlation analysis revealed that there was a extremely correlation between soil microbial quantity and soil nutrients under different nitrogen treatments. Our findings demonstrated that the rational application of nitrogen fertilizer could prevent a facilitation on the quantity of soil microorganisms, bacteria, actinomycetes and fungi and the content of available nutrients in tea rhizosphere soil.

Key words: Tea, Nitrogen, Rhizosphere, Soil nutrients, Soil microorganism

CLC Number:

S143.1

LI Jinting, HUANG Shaoxin, WEI Chizhang, NONG Yuqin, CHEN Yuanquan, LIAO Chunwen, QIN Xiaomin. Effects of Different Nitrogen Levels on Tea Rhizosphere Microbial Community and Its Role in Adjusting Soil Nutrients[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 281-288. doi: 10.7668/hbnxb.20190114.

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