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Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome

Sustained monoculture often leads to the inhibition of plant growth, the decrease of the soil microbial diversity, and changes in soil microbial community composition, particularly to the accumulation of soil‐borne pathogens. In this study, we conducted field experiments to investigate the practical...

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Autores principales: Chen, Huijie, Zhao, Shuang, Zhao, Jiamiao, Zhang, Kaikai, Jiang, Jing, Guan, Zhiyong, Chen, Sumei, Chen, Fadi, Fang, Weimin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349168/
https://www.ncbi.nlm.nih.gov/pubmed/32323930
http://dx.doi.org/10.1002/mbo3.1045
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author Chen, Huijie
Zhao, Shuang
Zhao, Jiamiao
Zhang, Kaikai
Jiang, Jing
Guan, Zhiyong
Chen, Sumei
Chen, Fadi
Fang, Weimin
author_facet Chen, Huijie
Zhao, Shuang
Zhao, Jiamiao
Zhang, Kaikai
Jiang, Jing
Guan, Zhiyong
Chen, Sumei
Chen, Fadi
Fang, Weimin
author_sort Chen, Huijie
collection PubMed
description Sustained monoculture often leads to the inhibition of plant growth, the decrease of the soil microbial diversity, and changes in soil microbial community composition, particularly to the accumulation of soil‐borne pathogens. In this study, we conducted field experiments to investigate the practical effects of tilling the soil down to a depth of 40 cm (40dp) in combination with dazomet (D) soil fumigation and/or the application of a bio‐organic fertilizer (B) on chrysanthemum growth, with a focus on the potential mechanisms underlying the responses of the soil microbiome. The growth indices of chrysanthemum were significantly (p < .05) increased in the DB + 40dp treatment compared to that in other treatments. The weighted and unweighted UniFrac distances in the principal coordinate analysis (PCoA) revealed that soil bacterial and fungal community compositions were separated according to the treatments. The abundance of genera potentially expressing growth promotion, such as Pseudomonas and Bacillus, was increased in the DB + 40dp treatment. In addition, the combined DB + 40dp treatment enhanced the activities of catalase, urease, sucrase, and β‐d‐glucosidase, and significantly increased the levels of available nitrogen, phosphorus, and potassium in the soil. The redundancy analysis (RDA) implied that the composition of the microbiome was correlated to soil enzymatic activities and soil potassium availability in the rhizosphere soil of chrysanthemum plants. Our findings suggest that the DB + 40dp treatment is a better strategy for improving chrysanthemum growth and regulating the rhizosphere microbiome in monoculture soils than the methods presently employed by commercial chrysanthemum producers.
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spelling pubmed-73491682020-07-14 Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome Chen, Huijie Zhao, Shuang Zhao, Jiamiao Zhang, Kaikai Jiang, Jing Guan, Zhiyong Chen, Sumei Chen, Fadi Fang, Weimin Microbiologyopen Original Articles Sustained monoculture often leads to the inhibition of plant growth, the decrease of the soil microbial diversity, and changes in soil microbial community composition, particularly to the accumulation of soil‐borne pathogens. In this study, we conducted field experiments to investigate the practical effects of tilling the soil down to a depth of 40 cm (40dp) in combination with dazomet (D) soil fumigation and/or the application of a bio‐organic fertilizer (B) on chrysanthemum growth, with a focus on the potential mechanisms underlying the responses of the soil microbiome. The growth indices of chrysanthemum were significantly (p < .05) increased in the DB + 40dp treatment compared to that in other treatments. The weighted and unweighted UniFrac distances in the principal coordinate analysis (PCoA) revealed that soil bacterial and fungal community compositions were separated according to the treatments. The abundance of genera potentially expressing growth promotion, such as Pseudomonas and Bacillus, was increased in the DB + 40dp treatment. In addition, the combined DB + 40dp treatment enhanced the activities of catalase, urease, sucrase, and β‐d‐glucosidase, and significantly increased the levels of available nitrogen, phosphorus, and potassium in the soil. The redundancy analysis (RDA) implied that the composition of the microbiome was correlated to soil enzymatic activities and soil potassium availability in the rhizosphere soil of chrysanthemum plants. Our findings suggest that the DB + 40dp treatment is a better strategy for improving chrysanthemum growth and regulating the rhizosphere microbiome in monoculture soils than the methods presently employed by commercial chrysanthemum producers. John Wiley and Sons Inc. 2020-04-23 /pmc/articles/PMC7349168/ /pubmed/32323930 http://dx.doi.org/10.1002/mbo3.1045 Text en © 2020 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Chen, Huijie
Zhao, Shuang
Zhao, Jiamiao
Zhang, Kaikai
Jiang, Jing
Guan, Zhiyong
Chen, Sumei
Chen, Fadi
Fang, Weimin
Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title_full Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title_fullStr Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title_full_unstemmed Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title_short Deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
title_sort deep tillage combined with biofertilizer following soil fumigation improved chrysanthemum growth by regulating the soil microbiome
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349168/
https://www.ncbi.nlm.nih.gov/pubmed/32323930
http://dx.doi.org/10.1002/mbo3.1045
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