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dc.contributor.advisorHahn, Dittmar
dc.contributor.authorValdes, Elise Claire
dc.date.accessioned2017-09-07T17:40:50Z
dc.date.available2017-09-07T17:40:50Z
dc.date.issued7/14/2015
dc.date.submittedAugust 2015
dc.identifier.urihttps://digital.library.txstate.edu/handle/10877/6831
dc.description.abstractCompost tea is a popular amendment used to improve soil quality and to control soil-borne diseases in plants. With proper brewing, compost tea contains many of the beneficial microbes and nutrients of compost, but is more easily applied to plants. The purpose of this study was to (i) analyze the fate of microbial communities in spent mushroom substrate compost tea applied to soil microcosms planted with corn, and (ii) determine if growth of corn is influenced by specific constituents from compost tea, including microbes only, nutrients only, or a combination of both (i.e. the complete compost tea). Two trials were performed, one with anaerobic soil conditions and a second with aerobic soil conditions. Bacteria and Eukarya were quantified over the 30 days with sampling events on days 0, 1, 2, 5, 10, 20, and 30, as were plant growth performance characteristics like root and sprout length or their biomass. Results demonstrated a significant drop (70-90%) in abundance of microbes after application of compost tea, without recovery during the 30-day incubation period. Plant growth performance characteristics were not statistically significantly different for corn on soil receiving compost tea or separated components (i.e. microbes or nutrients) only, or a water control. While these results cannot support assumptions on beneficial effects of compost tea on plant growth performance and microbial communities in soil after application, further scientific research should consider long-term studies with different plant species and soils to further investigate potential beneficial effects of compost tea.
dc.formatText
dc.format.extent71 pages
dc.format.medium1 file (.pdf)
dc.language.isoen_US
dc.subjectCompost tea
dc.subjectMicrobes
dc.titleEffect of compost tea on plant growth performance and the fate of microbial communities in soil
txstate.documenttypeThesis
dc.contributor.committeeMemberForstner, Michael
dc.contributor.committeeMemberRahe, Hardin
dc.contributor.committeeMemberMcLean, Robert
thesis.degree.departmentBiology
thesis.degree.disciplineBiology
thesis.degree.grantorTexas State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
txstate.departmentBiology


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