Microbial Population and Fertility of Rhizosphere Soils at Areas of Varied Tea-planting Years

CHEN Li-hua; LIU Lan-ying; LÜ Xin; LI Yue-ren

doi:10.19303/j.issn.1008-0384.2019.12.011

Volume 34 Issue 12

Dec. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(12): 1433-1439

CHEN L H, LIU L Y, LÜ X, et al. Microbial Population and Fertility of Rhizosphere Soils at Areas of Varied Tea-planting Years [J]. Fujian Journal of Agricultural Sciences，2019，34（12）：1433−1439. doi: 10.19303/j.issn.1008-0384.2019.12.011

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CHEN L H, LIU L Y, LÜ X, et al. Microbial Population and Fertility of Rhizosphere Soils at Areas of Varied Tea-planting Years [J]. Fujian Journal of Agricultural Sciences，2019，34（12）：1433−1439. doi: 10.19303/j.issn.1008-0384.2019.12.011

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Microbial Population and Fertility of Rhizosphere Soils at Areas of Varied Tea-planting Years

doi: 10.19303/j.issn.1008-0384.2019.12.011

Institute of Agricultural Quality Standards and Testing Technology Research, Fujian Academy of Agricultural Sciences/Fujian Key Laboratory of Agro-products Quality & Safety, Fuzhou, Fujian　350003, China

Received Date: 2019-11-09
Rev Recd Date: 2019-12-08
Publish Date: 2019-12-01

Abstract

Abstract

Objective Correlation between the microbial community and the nutrients in rhizosphere soils of varied years of tea-planting was studied to improve soil conditions and productivity at tea plantations. Method Microbial specimens collected from the rhizosphere soils at areas where tea bushes had been planted for 5, 10 and 15 years in Wuyishan city were cultured in the lab using standard dilution-plating method. A correlation analysis was conducted between the microbial count and soil fertility at corresponding sampling spots. Result The microbial population in soil layers decreased with the depth. The counts in different soil layers at areas of different planting ages did not show a consistent pattern. The 10-year-old planting area had the highest microbial count in the rhizosphere. Acidification of the rhizosphere soils was serious showing a pH ranging from 3.14 to 3.36. The fertility indices on soils of different planting ages differed. The contents of total P and total K in the 0−15 cm soil decreased with planting age, while those of total and available N in the 15−30 cm layer increased with years of planting. Other fertility indices either peaked or bottomed out when consecutively cultivated for 5 or 10-years. The redundancy analysis on the data revealed that the bacterial plate count was mainly affected by the contents of available K and total P in soil, while the fungal count by total and available N. Conclusion There was a significant correlation between the microbial population and fertility indices (e.g., available K, available P, total N, and available N ) in the rhizosphere soils of varying years of tea cultivation at the plantations.
- Tea plant,
- rhizosphere soil,
- microbial count,
- fertility,
- years of tea-planting

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References(20)

References

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