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Evaluating Effects of Southern Yello...

Mohammadi-Aragh, Maryam K.

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Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter./
Author:	Mohammadi-Aragh, Maryam K.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	130 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-07, Section: A.
Contained By:	Dissertations Abstracts International81-07A.
Subject:	Wood sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27546771
ISBN:	9781392426975

Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter.
Mohammadi-Aragh, Maryam K.

Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 130 p.

Source: Dissertations Abstracts International, Volume: 81-07, Section: A.

Thesis (Ph.D.)--Mississippi State University, 2019.

This item must not be sold to any third party vendors.

The objectives of this study were to investigate nutrient retention, intI1 prevalence, and compost maturity rates for poultry litter co-composted with 5, 10, and 20% southern yellow pine biochar and with or without 2% wood vinegar (WV). Samples were collected at 0, 57, and 112 days to measure nitrogen, phosphorus, and potassium (N, P, K) concentrations, microbial counts, pH, moisture content, carbon to nitrogen (C:N) ratio, and intI1 abundance. Composts were aerated once a week and the temperature was also recorded once a week. There was sufficient rainfall so no additional water was added. The results showed that N and P concentrations significantly increased over time in all treatments except 20% biochar and 20% biochar + wood vinegar, while K concentrations significantly decreased. In general, composting with wood vinegar significantly decreased nutrient concentrations; however, all nutrient concentrations were much higher than typical animal manure fertilizers. Increases in biochar level resulted in significantly lower bacteria counts and significantly higher fungi counts. Compost treatments containing wood vinegar had significantly lower bacteria and fungi counts, indicating that southern yellow pine wood vinegar had a biocide effect on microorganisms, and may be not suitable for composting at that application rate. intI1 prevalence was not significantly different among treatments, which may be due to insufficient thermophilic composting. Because thermophilic temperatures were not achieved, the compost was not mature by the end of the study; therefore, compost maturity rates could not be determined.

ISBN: 9781392426975Subjects--Topical Terms:

3168288
Wood sciences.
Subjects--Index Terms:

Antibiotic resistance

Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter.
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245 1 0 $a Evaluating Effects of Southern Yellow Pine Biochar and Wood Vinegar on Poultry Litter.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 130 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-07, Section: A.
500 $a Advisor: Stokes, C. Elizabeth.
502 $a Thesis (Ph.D.)--Mississippi State University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a The objectives of this study were to investigate nutrient retention, intI1 prevalence, and compost maturity rates for poultry litter co-composted with 5, 10, and 20% southern yellow pine biochar and with or without 2% wood vinegar (WV). Samples were collected at 0, 57, and 112 days to measure nitrogen, phosphorus, and potassium (N, P, K) concentrations, microbial counts, pH, moisture content, carbon to nitrogen (C:N) ratio, and intI1 abundance. Composts were aerated once a week and the temperature was also recorded once a week. There was sufficient rainfall so no additional water was added. The results showed that N and P concentrations significantly increased over time in all treatments except 20% biochar and 20% biochar + wood vinegar, while K concentrations significantly decreased. In general, composting with wood vinegar significantly decreased nutrient concentrations; however, all nutrient concentrations were much higher than typical animal manure fertilizers. Increases in biochar level resulted in significantly lower bacteria counts and significantly higher fungi counts. Compost treatments containing wood vinegar had significantly lower bacteria and fungi counts, indicating that southern yellow pine wood vinegar had a biocide effect on microorganisms, and may be not suitable for composting at that application rate. intI1 prevalence was not significantly different among treatments, which may be due to insufficient thermophilic composting. Because thermophilic temperatures were not achieved, the compost was not mature by the end of the study; therefore, compost maturity rates could not be determined.
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