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Assessing Microbial Community Dynami...

Celini, Julie,

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Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices // Julie Celini.
Author:	Celini, Julie,
Description:	1 electronic resource (126 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-11.
Contained By:	Masters Abstracts International85-11.
Subject:	Soil sciences. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31149238
ISBN:	9798382320434

Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices /
Celini, Julie,

Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices /Julie Celini. - 1 electronic resource (126 pages)

Source: Masters Abstracts International, Volume: 85-11.

This thesis investigates the effects of agricultural soil amendments on the soil microbial community and associated soil nutrients to gain an understanding for the potential implementation of the amendments as practice to promote overall soil health. Study one explored soil fumigation (metam sodium, 1,3-dichloropropenene, and combination) amendments and the potential to recurve impacts fumigation has on the microbial community through cover crop planting (faba bean and winter pea mixture, mustard, radish, and wheat). Results from this study showed that metam sodium+1,3-dichloropropene application resulted in the most shifts in community abundance, with Planctomycetota, Acidobacteriota, and Verrucomicrobiota significantly decreasing (2.39%, 7.48%, and 1.01% to 1.95%, 5.42%, and 0.70%, respectfully). Regarding the eukaryotic population, the dominant phyla Ascomycota and Basidiomycota showed significant decreases with combination fumigation treatment, decreasing from 11.41% to 6.93% and 0.77% to 0.36%, respectfully. None of the cover crops resulted in changes in the microbial community following fumigation for either prokaryotic or eukaryotic populations.Study two researched anaerobic digestate as an organic fertilizer alternative and the effect application has on the soil microbial community. Results showed shifts in both prokaryotic and eukaryotic taxa. Proteobacteria and Firmicutes abundance increased from 18.0% to 19.1% and 4.95% to5.81%, respectfully, and Chloroflexi decreased from 6.72% to 5.82%. For the eukaryotic population, the abundance of Basidiomycota increased significantly with the application of digestate from 2.4% to 3.9%. The nutrient levels remained stable throughout the duration of the study, apart from total hydrogen which significantly decreased with digestate application from 1.10±0.50 wt% to 0.59±0.22 wt%.

English

ISBN: 9798382320434Subjects--Topical Terms:

2122699
Soil sciences.
Subjects--Index Terms:

Microbial community

Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices /
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100 1 $a Celini, Julie, $e author. $3 3826124
245 1 0 $a Assessing Microbial Community Dynamics and Soil Quality Under Varied Soil Amendment Practices / $c Julie Celini.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2024
300 $a 1 electronic resource (126 pages)
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500 $a Source: Masters Abstracts International, Volume: 85-11.
500 $a Advisors: Liu, Yan Committee members: Liao, Wei; Thelen, Kurt.
502 $b M.S. $c Michigan State University $d 2024.
520 $a This thesis investigates the effects of agricultural soil amendments on the soil microbial community and associated soil nutrients to gain an understanding for the potential implementation of the amendments as practice to promote overall soil health. Study one explored soil fumigation (metam sodium, 1,3-dichloropropenene, and combination) amendments and the potential to recurve impacts fumigation has on the microbial community through cover crop planting (faba bean and winter pea mixture, mustard, radish, and wheat). Results from this study showed that metam sodium+1,3-dichloropropene application resulted in the most shifts in community abundance, with Planctomycetota, Acidobacteriota, and Verrucomicrobiota significantly decreasing (2.39%, 7.48%, and 1.01% to 1.95%, 5.42%, and 0.70%, respectfully). Regarding the eukaryotic population, the dominant phyla Ascomycota and Basidiomycota showed significant decreases with combination fumigation treatment, decreasing from 11.41% to 6.93% and 0.77% to 0.36%, respectfully. None of the cover crops resulted in changes in the microbial community following fumigation for either prokaryotic or eukaryotic populations.Study two researched anaerobic digestate as an organic fertilizer alternative and the effect application has on the soil microbial community. Results showed shifts in both prokaryotic and eukaryotic taxa. Proteobacteria and Firmicutes abundance increased from 18.0% to 19.1% and 4.95% to5.81%, respectfully, and Chloroflexi decreased from 6.72% to 5.82%. For the eukaryotic population, the abundance of Basidiomycota increased significantly with the application of digestate from 2.4% to 3.9%. The nutrient levels remained stable throughout the duration of the study, apart from total hydrogen which significantly decreased with digestate application from 1.10±0.50 wt% to 0.59±0.22 wt%.
546 $a English
590 $a School code: 0128
650 4 $a Soil sciences. $3 2122699
650 4 $a Microbiology. $3 536250
650 4 $a Agricultural engineering. $3 3168406
653 $a Microbial community
653 $a Soil health
653 $a Crop planting
653 $a Eukaryotic population
690 $a 0481
690 $a 0539
690 $a 0410
710 2 $a Michigan State University. $b Biosystems Engineering - Master of Science. $e degree granting institution. $3 3826010
720 1 $a Liu, Yan $e degree supervisor.
773 0 $t Masters Abstracts International $g 85-11.
790 $a 0128
791 $a M.S.
792 $a 2024
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31149238