Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization

Abstract The aim of this study was to assess the effects of irrigation frequency and nitrogen fertilization rate on the abundance, diversity, and composition of soil bacteria in winter wheat. Irrigation, but not nitrogen fertilization, significantly affected the bacterial alpha diversity index. Amon...

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Autores principales:	Haoran Li, Hongguang Wang, Bin Jia, Dongxiao Li, Qin Fang, Ruiqi Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cc196552651440fcbfaf8db2ccf24e61
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spelling	oai:doaj.org-article:cc196552651440fcbfaf8db2ccf24e612021-12-02T17:08:23ZIrrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization10.1038/s41598-021-96234-62045-2322https://doaj.org/article/cc196552651440fcbfaf8db2ccf24e612021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96234-6https://doaj.org/toc/2045-2322Abstract The aim of this study was to assess the effects of irrigation frequency and nitrogen fertilization rate on the abundance, diversity, and composition of soil bacteria in winter wheat. Irrigation, but not nitrogen fertilization, significantly affected the bacterial alpha diversity index. Among the 50 phyla obtained in these treatments, Proteobacteria, Bacteroidetes, Actinobacteria, Acidobacteria, Gemmatimonadetes, and Firmicutes were the predominant phyla. The LEfSe analysis of different treatments indicated that irrigation had a stronger effect on soil bacteria community composition than nitrogen fertilization. Moreover, the soil pH, moisture, available phosphorus (AP), and available potassium (AK) significantly correlated with the relative abundance of dominant bacteria at the phylum, genus, and operational taxonomic unit (OTU) levels. Overall, after three years of irrigation and fertilization treatments, the effect of irrigation on soil bacteria abundance, diversity, and composition of winter wheat was stronger than that of nitrogen fertilization, highlighting the importance of water availability for bacteria communities in semi-arid ecosystems. Inorganic and organic fertilizers should be applied in rotation.Haoran LiHongguang WangBin JiaDongxiao LiQin FangRuiqi LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haoran Li Hongguang Wang Bin Jia Dongxiao Li Qin Fang Ruiqi Li Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
description	Abstract The aim of this study was to assess the effects of irrigation frequency and nitrogen fertilization rate on the abundance, diversity, and composition of soil bacteria in winter wheat. Irrigation, but not nitrogen fertilization, significantly affected the bacterial alpha diversity index. Among the 50 phyla obtained in these treatments, Proteobacteria, Bacteroidetes, Actinobacteria, Acidobacteria, Gemmatimonadetes, and Firmicutes were the predominant phyla. The LEfSe analysis of different treatments indicated that irrigation had a stronger effect on soil bacteria community composition than nitrogen fertilization. Moreover, the soil pH, moisture, available phosphorus (AP), and available potassium (AK) significantly correlated with the relative abundance of dominant bacteria at the phylum, genus, and operational taxonomic unit (OTU) levels. Overall, after three years of irrigation and fertilization treatments, the effect of irrigation on soil bacteria abundance, diversity, and composition of winter wheat was stronger than that of nitrogen fertilization, highlighting the importance of water availability for bacteria communities in semi-arid ecosystems. Inorganic and organic fertilizers should be applied in rotation.
format	article
author	Haoran Li Hongguang Wang Bin Jia Dongxiao Li Qin Fang Ruiqi Li
author_facet	Haoran Li Hongguang Wang Bin Jia Dongxiao Li Qin Fang Ruiqi Li
author_sort	Haoran Li
title	Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
title_short	Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
title_full	Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
title_fullStr	Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
title_full_unstemmed	Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
title_sort	irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/cc196552651440fcbfaf8db2ccf24e61
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Irrigation has a higher impact on soil bacterial abundance, diversity and composition than nitrogen fertilization

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