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How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?

Shifts in soil bacterial diversity and community composition are suggested to be induced by elevated input of nitrogen (N) fertilization with implications for soil quality, and consequently production. In this study, we evaluated the impacts of recommended fertilization (RF) and conventional fertili...

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Autores principales: Ullah, Sami, He, Ping, Ai, Chao, Zhao, Shicheng, Ding, Wencheng, Song, Dali, Zhang, Jiajia, Huang, Shaohui, Abbas, Tanveer, Zhou, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466009/
https://www.ncbi.nlm.nih.gov/pubmed/32764443
http://dx.doi.org/10.3390/microorganisms8081193
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author Ullah, Sami
He, Ping
Ai, Chao
Zhao, Shicheng
Ding, Wencheng
Song, Dali
Zhang, Jiajia
Huang, Shaohui
Abbas, Tanveer
Zhou, Wei
author_facet Ullah, Sami
He, Ping
Ai, Chao
Zhao, Shicheng
Ding, Wencheng
Song, Dali
Zhang, Jiajia
Huang, Shaohui
Abbas, Tanveer
Zhou, Wei
author_sort Ullah, Sami
collection PubMed
description Shifts in soil bacterial diversity and community composition are suggested to be induced by elevated input of nitrogen (N) fertilization with implications for soil quality, and consequently production. In this study, we evaluated the impacts of recommended fertilization (RF) and conventional fertilization (CF) on soil chemical properties, crop yield, bacterial diversity, and community composition from two long-term experiments conducted in fluvo-aquic soil and black soil of China. Each site comprised of four treatments, i.e., RF N−, RF N+, CF N−, CF N+. No N fertilization was indicated by N− and N fertilization was indicated by N+. Across both sites, N fertilization significantly increased crop yield compared with no N fertilization and RF successfully enhanced crop yield over CF. Interestingly, the RF maintained bacterial diversity, while CF depressed bacterial diversity in the two soils. Microbial taxa performing important ecological roles such as order Rhodospirillales and Bacillales were significantly enhanced in the RF approach, while Rhizobiales declined under CF. Furthermore, the results of partial least square path modeling revealed that soil available phosphorus (AP) negatively affected bacterial diversity while it positively affected bacterial community structure in fluvo-aquic soils. In contrast, soil pH was positively linked with both bacterial diversity and community structure in black soil. Overall, our study demonstrated that RF is an environmentally friendly approach which not only maintained above ground plant productivity, but also preserved belowground microbial populations and important soil variables regulating bacterial communities varied in different soil types.
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spelling pubmed-74660092020-09-14 How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes? Ullah, Sami He, Ping Ai, Chao Zhao, Shicheng Ding, Wencheng Song, Dali Zhang, Jiajia Huang, Shaohui Abbas, Tanveer Zhou, Wei Microorganisms Article Shifts in soil bacterial diversity and community composition are suggested to be induced by elevated input of nitrogen (N) fertilization with implications for soil quality, and consequently production. In this study, we evaluated the impacts of recommended fertilization (RF) and conventional fertilization (CF) on soil chemical properties, crop yield, bacterial diversity, and community composition from two long-term experiments conducted in fluvo-aquic soil and black soil of China. Each site comprised of four treatments, i.e., RF N−, RF N+, CF N−, CF N+. No N fertilization was indicated by N− and N fertilization was indicated by N+. Across both sites, N fertilization significantly increased crop yield compared with no N fertilization and RF successfully enhanced crop yield over CF. Interestingly, the RF maintained bacterial diversity, while CF depressed bacterial diversity in the two soils. Microbial taxa performing important ecological roles such as order Rhodospirillales and Bacillales were significantly enhanced in the RF approach, while Rhizobiales declined under CF. Furthermore, the results of partial least square path modeling revealed that soil available phosphorus (AP) negatively affected bacterial diversity while it positively affected bacterial community structure in fluvo-aquic soils. In contrast, soil pH was positively linked with both bacterial diversity and community structure in black soil. Overall, our study demonstrated that RF is an environmentally friendly approach which not only maintained above ground plant productivity, but also preserved belowground microbial populations and important soil variables regulating bacterial communities varied in different soil types. MDPI 2020-08-05 /pmc/articles/PMC7466009/ /pubmed/32764443 http://dx.doi.org/10.3390/microorganisms8081193 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ullah, Sami
He, Ping
Ai, Chao
Zhao, Shicheng
Ding, Wencheng
Song, Dali
Zhang, Jiajia
Huang, Shaohui
Abbas, Tanveer
Zhou, Wei
How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title_full How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title_fullStr How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title_full_unstemmed How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title_short How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?
title_sort how do soil bacterial diversity and community composition respond under recommended and conventional nitrogen fertilization regimes?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466009/
https://www.ncbi.nlm.nih.gov/pubmed/32764443
http://dx.doi.org/10.3390/microorganisms8081193
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