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Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems

Soil microbes play a crucial role in soil organic matter decomposition and nutrient cycling and are influenced by management practices. Therefore, quantifying the impacts of various agricultural management practices on soil microbiomes and their activity is crucial for making informed management dec...

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Autores principales: Singh, Shikha, Singh, Surendra, Lukas, Scott B., Machado, Stephen, Nouri, Amin, Calderon, Francisco, Rieke, Elizabeth R., Cappellazzi, Shannon B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10457325/
https://www.ncbi.nlm.nih.gov/pubmed/37626146
http://dx.doi.org/10.1038/s41598-023-41216-z
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author Singh, Shikha
Singh, Surendra
Lukas, Scott B.
Machado, Stephen
Nouri, Amin
Calderon, Francisco
Rieke, Elizabeth R.
Cappellazzi, Shannon B.
author_facet Singh, Shikha
Singh, Surendra
Lukas, Scott B.
Machado, Stephen
Nouri, Amin
Calderon, Francisco
Rieke, Elizabeth R.
Cappellazzi, Shannon B.
author_sort Singh, Shikha
collection PubMed
description Soil microbes play a crucial role in soil organic matter decomposition and nutrient cycling and are influenced by management practices. Therefore, quantifying the impacts of various agricultural management practices on soil microbiomes and their activity is crucial for making informed management decisions. This study aimed to assess the impact of various management systems on soil bacterial abundance and diversity, soil enzyme activities and carbon mineralization potential in wheat-based systems. To accomplish this, soil samples from 0 to 15 cm depth were collected from ongoing long-term field trials in eastern Oregon region under wheat (Triticum aestivum L.)-fallow (WF), WF with different tillage (WT), wheat-pea (Pisum sativum L.) (WP), WF under different crop residue management (CR) and natural undisturbed/unmanaged grassland pasture (GP). These trials consisted of an array of treatments like tillage intensities, nitrogen rates, organic amendments, and seasonal residue burning. This study was a part of the Soil Health Institute’s North American Project to Evaluate Soil Health measurements (NAPESHM). Bacterial community structure was determined using amplicon sequencing of the V4 region of 16SrRNA genes and followed the protocols of the Earth Microbiome Project. In addition, extracellular enzyme activities, and carbon mineralization potential (1d-CO(2)) were measured. Among different trials, 1d-CO(2) in WT, WP, and CR studies averaged 53%, 51% and 87% lower than GP systems, respectively. Enzyme activities were significantly greater in GP compared to the other managements and followed similar trend as respiration. We observed higher evenness in GP and higher richness in spring residue burning treatment of CR study. Our results indicated that species evenness is perhaps a better indicator of soil health in comparison to other indices in dryland wheat systems.
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spelling pubmed-104573252023-08-27 Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems Singh, Shikha Singh, Surendra Lukas, Scott B. Machado, Stephen Nouri, Amin Calderon, Francisco Rieke, Elizabeth R. Cappellazzi, Shannon B. Sci Rep Article Soil microbes play a crucial role in soil organic matter decomposition and nutrient cycling and are influenced by management practices. Therefore, quantifying the impacts of various agricultural management practices on soil microbiomes and their activity is crucial for making informed management decisions. This study aimed to assess the impact of various management systems on soil bacterial abundance and diversity, soil enzyme activities and carbon mineralization potential in wheat-based systems. To accomplish this, soil samples from 0 to 15 cm depth were collected from ongoing long-term field trials in eastern Oregon region under wheat (Triticum aestivum L.)-fallow (WF), WF with different tillage (WT), wheat-pea (Pisum sativum L.) (WP), WF under different crop residue management (CR) and natural undisturbed/unmanaged grassland pasture (GP). These trials consisted of an array of treatments like tillage intensities, nitrogen rates, organic amendments, and seasonal residue burning. This study was a part of the Soil Health Institute’s North American Project to Evaluate Soil Health measurements (NAPESHM). Bacterial community structure was determined using amplicon sequencing of the V4 region of 16SrRNA genes and followed the protocols of the Earth Microbiome Project. In addition, extracellular enzyme activities, and carbon mineralization potential (1d-CO(2)) were measured. Among different trials, 1d-CO(2) in WT, WP, and CR studies averaged 53%, 51% and 87% lower than GP systems, respectively. Enzyme activities were significantly greater in GP compared to the other managements and followed similar trend as respiration. We observed higher evenness in GP and higher richness in spring residue burning treatment of CR study. Our results indicated that species evenness is perhaps a better indicator of soil health in comparison to other indices in dryland wheat systems. Nature Publishing Group UK 2023-08-25 /pmc/articles/PMC10457325/ /pubmed/37626146 http://dx.doi.org/10.1038/s41598-023-41216-z Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Singh, Shikha
Singh, Surendra
Lukas, Scott B.
Machado, Stephen
Nouri, Amin
Calderon, Francisco
Rieke, Elizabeth R.
Cappellazzi, Shannon B.
Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title_full Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title_fullStr Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title_full_unstemmed Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title_short Long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
title_sort long-term agro-management strategies shape soil bacterial community structure in dryland wheat systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10457325/
https://www.ncbi.nlm.nih.gov/pubmed/37626146
http://dx.doi.org/10.1038/s41598-023-41216-z
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