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POSPÍŠILOVÁ, Ľ. DRÁPELOVÁ, I. ENEV, V.
Original Title
Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy
Type
journal article - other
Language
English
Original Abstract
Quality of soil humic substances and compost quality was assessed using different techniques of fluorescence spectroscopy. Emission, excitation, synchronous and emission-excitation matrix help us to characterize different fluorophores in humic substances molecule. Content of stabile carbon forms in soil was assessed by humic substances fractionation. Content of labile water extractable carbon and nitrogen was determined by analyzer Shimadzu TOC-VCSH with chemo-luminescent detection in infrared spectral region. Results showed that compost amendment caused changes in both stabile (recalcitrant) and labile carbon content. Humic substances isolated from compost consist mainly of simple structural components of wide molecular heterogeneity and low molecular weight. Humification degree and content of conjugated fluorophores in compost was lower compared with stabile soil humic substances. The last contained more conjugated aromatic p-electron systems with electron-withdrawing functional groups, which are responsible for the fluorescence shift to lower energy levels or longer wavelengths.
Keywords
Soil humic substances, compost and fluorescence spectroscopy
Authors
POSPÍŠILOVÁ, Ľ.; DRÁPELOVÁ, I.; ENEV, V.
RIV year
2014
Released
30. 4. 2014
Publisher
David Publishing Company
Location
New York, US
ISBN
1934-7391
Periodical
Journal of Life Sciences
Year of study
8
Number
4
State
United States of America
Pages from
364
Pages to
372
Pages count
9
BibTex
@article{BUT109055, author="Ľubica {Pospíšilová} and Ida {Drápelová} and Vojtěch {Enev}", title="Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy", journal="Journal of Life Sciences", year="2014", volume="8", number="4", pages="364--372", issn="1934-7391" }