Increasing livestock wastewater application in alternate-furrow irrigation reduces nitrification gene abundance but not nitrification rate in rhizosphere
In water-scarce regions, alternate-furrow irrigation (AFI)—alternately wetting half of the plant roots—has proven to be an effective water-saving approach without compromising yield. However, the extent to which AFI with wastewater affects N cycling genes remains poorly studied. We aimed to investig...
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| Veröffentlicht in: | Biology and fertility of soils 2019-07, Vol.55 (5), p.439-455 |
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| creator | Liu, Yuan Neal, Andrew L. Zhang, Xiaoxian Cui, Erping Gao, Feng Fan, Xiangyang Hu, Chao Li, Zhongyang |
| description | In water-scarce regions, alternate-furrow irrigation (AFI)—alternately wetting half of the plant roots—has proven to be an effective water-saving approach without compromising yield. However, the extent to which AFI with wastewater affects N cycling genes remains poorly studied. We aimed to investigate changes in main N transformation processes, bacterial and fungal community composition, as well as relative abundance of N cycle-associated genes in soil receiving AFI with swine wastewater. The experimental plan included three irrigation rates, irrigating pepper plants with 50%, 65%, and 80% of the amount of water required under conventional furrow irrigation to prevent the crop suffering water stress. Each treatment had a groundwater irrigation control. We measured edaphic factors, microbial community composition, and relative abundance of genes in rhizosphere and bulk soils. Altering water use in AFI did not exert a significant effect on bacterial and fungal communities. By increasing the irrigation rate of wastewater, relative abundances of
nifH
, bacterial and archaeal
amoA
and
nosZ
genes decreased, whereas those of
nirK
and
nirS
genes increased in the rhizosphere soil; nitrification rate did not decrease and the denitrification rate remained unchanged in both rhizosphere and bulk soil, implying that appropriate increase of wastewater use by AFI can improve N use efficiency. |
| doi_str_mv | 10.1007/s00374-019-01361-y |
| format | Article |
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nifH
, bacterial and archaeal
amoA
and
nosZ
genes decreased, whereas those of
nirK
and
nirS
genes increased in the rhizosphere soil; nitrification rate did not decrease and the denitrification rate remained unchanged in both rhizosphere and bulk soil, implying that appropriate increase of wastewater use by AFI can improve N use efficiency.</description><identifier>ISSN: 0178-2762</identifier><identifier>EISSN: 1432-0789</identifier><identifier>DOI: 10.1007/s00374-019-01361-y</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Abundance ; Agricultural runoff ; Agricultural wastes ; Agriculture ; Animal wastes ; Bacteria ; Biomedical and Life Sciences ; Communities ; Community composition ; Composition ; Denitrification ; Fungi ; Furrow irrigation ; Genes ; Groundwater ; Groundwater irrigation ; Groundwater treatment ; Irrigation ; Irrigation water ; Life Sciences ; Livestock ; Microorganisms ; Moisture content ; NifH gene ; NirK protein ; Nitrification ; Original Paper ; Plant roots ; Relative abundance ; Rhizosphere ; Soil ; Soil Science & Conservation ; Soil water ; Swine ; Wastewater ; Water conservation ; Water content ; Water stress ; Water use ; Wetting</subject><ispartof>Biology and fertility of soils, 2019-07, Vol.55 (5), p.439-455</ispartof><rights>The Author(s) 2019</rights><rights>Biology and Fertility of Soils is a copyright of Springer, (2019). All Rights Reserved. © 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-a413d898f6aab0814f08582b4db87e5b2546ac704a586061b5c932834b992ddb3</citedby><cites>FETCH-LOGICAL-c363t-a413d898f6aab0814f08582b4db87e5b2546ac704a586061b5c932834b992ddb3</cites><orcidid>0000-0002-3880-9855</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00374-019-01361-y$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00374-019-01361-y$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids></links><search><creatorcontrib>Liu, Yuan</creatorcontrib><creatorcontrib>Neal, Andrew L.</creatorcontrib><creatorcontrib>Zhang, Xiaoxian</creatorcontrib><creatorcontrib>Cui, Erping</creatorcontrib><creatorcontrib>Gao, Feng</creatorcontrib><creatorcontrib>Fan, Xiangyang</creatorcontrib><creatorcontrib>Hu, Chao</creatorcontrib><creatorcontrib>Li, Zhongyang</creatorcontrib><title>Increasing livestock wastewater application in alternate-furrow irrigation reduces nitrification gene abundance but not nitrification rate in rhizosphere</title><title>Biology and fertility of soils</title><addtitle>Biol Fertil Soils</addtitle><description>In water-scarce regions, alternate-furrow irrigation (AFI)—alternately wetting half of the plant roots—has proven to be an effective water-saving approach without compromising yield. However, the extent to which AFI with wastewater affects N cycling genes remains poorly studied. We aimed to investigate changes in main N transformation processes, bacterial and fungal community composition, as well as relative abundance of N cycle-associated genes in soil receiving AFI with swine wastewater. The experimental plan included three irrigation rates, irrigating pepper plants with 50%, 65%, and 80% of the amount of water required under conventional furrow irrigation to prevent the crop suffering water stress. Each treatment had a groundwater irrigation control. We measured edaphic factors, microbial community composition, and relative abundance of genes in rhizosphere and bulk soils. Altering water use in AFI did not exert a significant effect on bacterial and fungal communities. By increasing the irrigation rate of wastewater, relative abundances of
nifH
, bacterial and archaeal
amoA
and
nosZ
genes decreased, whereas those of
nirK
and
nirS
genes increased in the rhizosphere soil; nitrification rate did not decrease and the denitrification rate remained unchanged in both rhizosphere and bulk soil, implying that appropriate increase of wastewater use by AFI can improve N use efficiency.</description><subject>Abundance</subject><subject>Agricultural runoff</subject><subject>Agricultural wastes</subject><subject>Agriculture</subject><subject>Animal wastes</subject><subject>Bacteria</subject><subject>Biomedical and Life Sciences</subject><subject>Communities</subject><subject>Community composition</subject><subject>Composition</subject><subject>Denitrification</subject><subject>Fungi</subject><subject>Furrow irrigation</subject><subject>Genes</subject><subject>Groundwater</subject><subject>Groundwater irrigation</subject><subject>Groundwater treatment</subject><subject>Irrigation</subject><subject>Irrigation water</subject><subject>Life 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treatment</topic><topic>Irrigation</topic><topic>Irrigation water</topic><topic>Life Sciences</topic><topic>Livestock</topic><topic>Microorganisms</topic><topic>Moisture content</topic><topic>NifH gene</topic><topic>NirK protein</topic><topic>Nitrification</topic><topic>Original Paper</topic><topic>Plant roots</topic><topic>Relative abundance</topic><topic>Rhizosphere</topic><topic>Soil</topic><topic>Soil Science & Conservation</topic><topic>Soil water</topic><topic>Swine</topic><topic>Wastewater</topic><topic>Water conservation</topic><topic>Water content</topic><topic>Water stress</topic><topic>Water use</topic><topic>Wetting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Yuan</creatorcontrib><creatorcontrib>Neal, Andrew L.</creatorcontrib><creatorcontrib>Zhang, Xiaoxian</creatorcontrib><creatorcontrib>Cui, Erping</creatorcontrib><creatorcontrib>Gao, Feng</creatorcontrib><creatorcontrib>Fan, 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reduces nitrification gene abundance but not nitrification rate in rhizosphere</atitle><jtitle>Biology and fertility of soils</jtitle><stitle>Biol Fertil Soils</stitle><date>2019-07-01</date><risdate>2019</risdate><volume>55</volume><issue>5</issue><spage>439</spage><epage>455</epage><pages>439-455</pages><issn>0178-2762</issn><eissn>1432-0789</eissn><abstract>In water-scarce regions, alternate-furrow irrigation (AFI)—alternately wetting half of the plant roots—has proven to be an effective water-saving approach without compromising yield. However, the extent to which AFI with wastewater affects N cycling genes remains poorly studied. We aimed to investigate changes in main N transformation processes, bacterial and fungal community composition, as well as relative abundance of N cycle-associated genes in soil receiving AFI with swine wastewater. The experimental plan included three irrigation rates, irrigating pepper plants with 50%, 65%, and 80% of the amount of water required under conventional furrow irrigation to prevent the crop suffering water stress. Each treatment had a groundwater irrigation control. We measured edaphic factors, microbial community composition, and relative abundance of genes in rhizosphere and bulk soils. Altering water use in AFI did not exert a significant effect on bacterial and fungal communities. By increasing the irrigation rate of wastewater, relative abundances of
nifH
, bacterial and archaeal
amoA
and
nosZ
genes decreased, whereas those of
nirK
and
nirS
genes increased in the rhizosphere soil; nitrification rate did not decrease and the denitrification rate remained unchanged in both rhizosphere and bulk soil, implying that appropriate increase of wastewater use by AFI can improve N use efficiency.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00374-019-01361-y</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-3880-9855</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Abundance Agricultural runoff Agricultural wastes Agriculture Animal wastes Bacteria Biomedical and Life Sciences Communities Community composition Composition Denitrification Fungi Furrow irrigation Genes Groundwater Groundwater irrigation Groundwater treatment Irrigation Irrigation water Life Sciences Livestock Microorganisms Moisture content NifH gene NirK protein Nitrification Original Paper Plant roots Relative abundance Rhizosphere Soil Soil Science & Conservation Soil water Swine Wastewater Water conservation Water content Water stress Water use Wetting |
| title | Increasing livestock wastewater application in alternate-furrow irrigation reduces nitrification gene abundance but not nitrification rate in rhizosphere |
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