Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau

Soil bacterial diversity and community composition are crucial for soil health and plant growth, and their dynamics in response to agronomic practices are poorly understood. The aim of this study was to investigate the response of soil bacterial community structure to the changes of sowing methods,...

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Main Authors: Chunguo Huang, Xiaoli Han, Zhenping Yang, Yinglong Chen, Zed Rengel
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-02-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmicb.2020.00192/full
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author Chunguo Huang
Xiaoli Han
Zhenping Yang
Yinglong Chen
Yinglong Chen
Zed Rengel
author_facet Chunguo Huang
Xiaoli Han
Zhenping Yang
Yinglong Chen
Yinglong Chen
Zed Rengel
author_sort Chunguo Huang
collection DOAJ
description Soil bacterial diversity and community composition are crucial for soil health and plant growth, and their dynamics in response to agronomic practices are poorly understood. The aim of this study was to investigate the response of soil bacterial community structure to the changes of sowing methods, soil depth and distance to roots in a winter wheat-summer maize crop rotation system on the Loess Plateau in china (35°17′38′′N, 111°40′24′′E). The experiment was laid out as completely randomized block design with three replications. Sowing methods trialed were: traditional sowing (TS), film-mulched ridge and furrow sowing (FMR&F), wide ridge and narrow furrow sowing (WR&NF) and unplanted control (CK). The result showed that the WR&NF sowing method treatment significantly decreased soil bacterial diversity (Chao 1 and Shannon indices) compared to the TS and FMR&F treatment, but increased abundance of beneficial bacteria such as genera Bacillus and Pseudomonas compared to the TS treatment. These genera showed a stronger correlation with soil properties and contributed to the soil nutrient cycling and crop productivity. Bacillus, Pseudomonas, Nevskia, and Lactococcus were the keystone genera in this winter wheat-summer maize rotation system on the Loess Plateau. Strong correlations between changes in soil properties and soil bacterial diversity and abundance were identified. In summary, we suggest that the WR&NF treatment, as a no-mulching film and no-deep tillage sowing method, would be the most suitable sowing technique in the winter wheat-summer maize rotation on Loess soil.
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spelling doaj.art-341da59bc21449aab2a2297d5754f82a2022-12-21T18:33:42ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2020-02-011110.3389/fmicb.2020.00192483584Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess PlateauChunguo Huang0Xiaoli Han1Zhenping Yang2Yinglong Chen3Yinglong Chen4Zed Rengel5College of Agriculture, Shanxi Agricultural University, Jinzhong, ChinaCollege of Forestry, Shanxi Agricultural University, Jinzhong, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong, ChinaInstitute of Agriculture, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, AustraliaInstitute of Soil and Water Conservation, Chinese Academy of Sciences, Northwest A&F University, Yangling, ChinaInstitute of Agriculture, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, AustraliaSoil bacterial diversity and community composition are crucial for soil health and plant growth, and their dynamics in response to agronomic practices are poorly understood. The aim of this study was to investigate the response of soil bacterial community structure to the changes of sowing methods, soil depth and distance to roots in a winter wheat-summer maize crop rotation system on the Loess Plateau in china (35°17′38′′N, 111°40′24′′E). The experiment was laid out as completely randomized block design with three replications. Sowing methods trialed were: traditional sowing (TS), film-mulched ridge and furrow sowing (FMR&F), wide ridge and narrow furrow sowing (WR&NF) and unplanted control (CK). The result showed that the WR&NF sowing method treatment significantly decreased soil bacterial diversity (Chao 1 and Shannon indices) compared to the TS and FMR&F treatment, but increased abundance of beneficial bacteria such as genera Bacillus and Pseudomonas compared to the TS treatment. These genera showed a stronger correlation with soil properties and contributed to the soil nutrient cycling and crop productivity. Bacillus, Pseudomonas, Nevskia, and Lactococcus were the keystone genera in this winter wheat-summer maize rotation system on the Loess Plateau. Strong correlations between changes in soil properties and soil bacterial diversity and abundance were identified. In summary, we suggest that the WR&NF treatment, as a no-mulching film and no-deep tillage sowing method, would be the most suitable sowing technique in the winter wheat-summer maize rotation on Loess soil.https://www.frontiersin.org/article/10.3389/fmicb.2020.00192/fullbacterial community compositiondiversitysowing methodsrhizospheresoil layers
spellingShingle Chunguo Huang
Xiaoli Han
Zhenping Yang
Yinglong Chen
Yinglong Chen
Zed Rengel
Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
Frontiers in Microbiology
bacterial community composition
diversity
sowing methods
rhizosphere
soil layers
title Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
title_full Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
title_fullStr Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
title_full_unstemmed Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
title_short Sowing Methods Influence Soil Bacterial Diversity and Community Composition in a Winter Wheat-Summer Maize Rotation System on the Loess Plateau
title_sort sowing methods influence soil bacterial diversity and community composition in a winter wheat summer maize rotation system on the loess plateau
topic bacterial community composition
diversity
sowing methods
rhizosphere
soil layers
url https://www.frontiersin.org/article/10.3389/fmicb.2020.00192/full
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