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Effects of Fallopia multifloraAndrographis paniculata intercropping model on yield, quality, soil nutrition and rhizosphere microorganisms of F. multiflora

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Abstract

Aims

We aimed to explore the effects of Fallopia multiflora–Andrographis paniculata intercropping model on yield, quality, soil nutrition and rhizosphere microorganisms of F. multiflora, an important raw material of a traditional Chinese medicine. The data will provide empirical evidence for the application and promotion of the system in agricultural production.

Methods

F. multiflora’s yield, potential medicinal quality, and rhizosphere soil nutrient contents, pH, enzyme activities, and microbial characteristics (such as diversity and structure of the bacterial community) were compared between the intercropped system and a monoculture of F. multiflora.

Results

Compared with the monoculture of F. multiflora, F. multifloraA. paniculata intercropping significantly increased the stem diameter, root fresh weight, yield and stilbene glycoside content of F. multiflora. The activities of urease and sucrase and the amounts of bacteria and actinomycetes in rhizosphere soil of intercropped F. multiflora were significantly higher than those in rhizosphere soil of the monoculture. Intercropping increased the diversity of rhizosphere bacteria and the relative abundances of potentially beneficial microorganisms. Correlation analysis shows that the yield and quality of F. multiflora were closely related to urease and invertase activities, alkaline hydrolysis nitrogen content, soil organic matter content, bacterial biomass, and pH. The results of principal component analysis show that the score of intercropping soil was higher than that of monoculture soil.

Conclusions

A. paniculata intercropping has a significant impact on the rhizosphere soil of F. multiflora, and can improve the yield and quality of F. multiflora by improving the rhizosphere soil ecological environment and soil quality.

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Acknowledgements

This work was supported by National Key Research and Development Program (2017YFC1700704), Special Fund for the Protection of Lingnan Chinese Medicinal Materials in Guangdong Province in 2017 (Yue cai she [2017] No. 60), and Guangdong Provincial Youth Innovation Talents Program (2018KQNCX133).

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Authors

Contributions

XT, QY and LZ conceived and designed the experiments. CL and QC performed the experiments and drafted the manuscript. PL and XJ analyzed the data. All authors contributed to the discussion and revised and approved the final manuscript.

Corresponding authors

Correspondence to Xiaomin Tang, Quan Yang or Liangyun Zhou.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Responsible Editor: Dorte Bodin Dresbøll.

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Liu, C., Cai, Q., Liao, P. et al. Effects of Fallopia multifloraAndrographis paniculata intercropping model on yield, quality, soil nutrition and rhizosphere microorganisms of F. multiflora. Plant Soil 467, 465–481 (2021). https://doi.org/10.1007/s11104-021-05106-5

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  • DOI: https://doi.org/10.1007/s11104-021-05106-5

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