Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy

The impact of Chinese milk vetch (Astragalus sinicus L., CMV) incorporation on the nirK-denitrifying bacteria remains unknown. Here, the diversity and the composition of nirK-denitrifying bacterial communities in a double-rice paddy soil were estimated by using Illumina MiSeq sequencing under four f...

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Main Authors: Jiangwen Nie, Yadong Yang, Bin Wang, Zhangyong Liu, Bo Zhu
Format: Article
Language:English
Published: Taylor & Francis Group 2021-08-01
Series:Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
Subjects:
Online Access:http://dx.doi.org/10.1080/09064710.2021.1928741
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author Jiangwen Nie
Yadong Yang
Bin Wang
Zhangyong Liu
Bo Zhu
author_facet Jiangwen Nie
Yadong Yang
Bin Wang
Zhangyong Liu
Bo Zhu
author_sort Jiangwen Nie
collection DOAJ
description The impact of Chinese milk vetch (Astragalus sinicus L., CMV) incorporation on the nirK-denitrifying bacteria remains unknown. Here, the diversity and the composition of nirK-denitrifying bacterial communities in a double-rice paddy soil were estimated by using Illumina MiSeq sequencing under four fertilisation treatments: no fertilisation (CK), vetch incorporation (CMV), urea (N200) and combined application of vetch and urea (CMV+N100). Compared with CK, N200 increased Shannon index by 10.5% in early rice season, whereas CMV did not change the Shannon index and Chao1 index in both seasons. Proteobacteria and Bradyrhizobium were the most abundant phylum and genus for nirK-denitrifying bacterial communities, respectively. Most variations in abundance of genus components of nirK-denitrifying bacterial communities as affected by the application of urea were detected in late rice season. Principal coordinates analysis showed that effect of CMV on the nirK-denitrifying bacterial communities was weaker than application of inorganic fertiliser (N200 and CMV+N100). Furthermore, redundancy analysis showed that soil was the key factor driving nirK-denitrifying bacterial communities. Our results indicated that the response of the nirK-denitrifying bacterial communities is more sensitive to urea than vetch, suggesting the combination of vetch and urea can be considered as an alternative N resource to inorganic fertiliser.
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spelling doaj.art-d4fee2c78af74429aa2a0bef661fb10e2023-09-15T10:26:26ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132021-08-0171653054010.1080/09064710.2021.19287411928741Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddyJiangwen Nie0Yadong Yang1Bin Wang2Zhangyong Liu3Bo Zhu4Yangtze UniversityChina Agricultural UniversityChinese Academy of Agricultural SciencesYangtze UniversityYangtze UniversityThe impact of Chinese milk vetch (Astragalus sinicus L., CMV) incorporation on the nirK-denitrifying bacteria remains unknown. Here, the diversity and the composition of nirK-denitrifying bacterial communities in a double-rice paddy soil were estimated by using Illumina MiSeq sequencing under four fertilisation treatments: no fertilisation (CK), vetch incorporation (CMV), urea (N200) and combined application of vetch and urea (CMV+N100). Compared with CK, N200 increased Shannon index by 10.5% in early rice season, whereas CMV did not change the Shannon index and Chao1 index in both seasons. Proteobacteria and Bradyrhizobium were the most abundant phylum and genus for nirK-denitrifying bacterial communities, respectively. Most variations in abundance of genus components of nirK-denitrifying bacterial communities as affected by the application of urea were detected in late rice season. Principal coordinates analysis showed that effect of CMV on the nirK-denitrifying bacterial communities was weaker than application of inorganic fertiliser (N200 and CMV+N100). Furthermore, redundancy analysis showed that soil was the key factor driving nirK-denitrifying bacterial communities. Our results indicated that the response of the nirK-denitrifying bacterial communities is more sensitive to urea than vetch, suggesting the combination of vetch and urea can be considered as an alternative N resource to inorganic fertiliser.http://dx.doi.org/10.1080/09064710.2021.1928741rice paddynitrous oxidedenitrificationbacterial communitieschinese milk vetch
spellingShingle Jiangwen Nie
Yadong Yang
Bin Wang
Zhangyong Liu
Bo Zhu
Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
rice paddy
nitrous oxide
denitrification
bacterial communities
chinese milk vetch
title Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
title_full Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
title_fullStr Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
title_full_unstemmed Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
title_short Stronger impact of urea application than incorporation of Chinese milk vetch (Astragalus sinicus L.) on nirK-denitrifying bacterial communities in a Chinese double-rice paddy
title_sort stronger impact of urea application than incorporation of chinese milk vetch astragalus sinicus l on nirk denitrifying bacterial communities in a chinese double rice paddy
topic rice paddy
nitrous oxide
denitrification
bacterial communities
chinese milk vetch
url http://dx.doi.org/10.1080/09064710.2021.1928741
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