Detail publikace

Effects of industrial compost on chemical and spectroscopic properties of soil humic substances from Luvi-Haplic Chernozem

ENEV, V. KLUČÁKOVÁ, M.

Originální název

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Humic substances (HS) represent very significant components of the organic matter (OM) in soils and compost. Object of our study was soil of soil type Luvi-Haplic Chernozem (locality Praha-Ruzyně, Crop Research Institute). Three various amounts were added in soil Luvi-Haplic Chernozem in the year 2008: 124, 239 and 478 t/ha. Soil humic substances were extracted one year after compost application into the soil and analysed by means of ultraviolet-visible spectroscopy, infrared spectroscopy with Fourier transform, fluorescence spectroscopy and titration methods. Emission-Excitation spectra (EEM) obtained using fluorescence spectroscopy showed that compost contains well humified fractions of humic substances. In view of content of young less condensed aromatic structures is relative intensity of fluorescence of all free main peaks lower in comparison with soil humic substances. If we add more amount of compost, content of carboxylic, phenolic groups and ether bridges in soil humic substances increases, which was confirmed by infrared spectra. Humification index E4/E6 which was determined on the basis of measured UV-VIS spectra, decreases with decreasing amount of added compost. Measured values were higher than 4 for all extracted humic samples, which show on brown humic acids with lower molecular mass. The high value of humification index for compost confirmed the presence of young less condensed aromatic structures detected by fluorescence spectroscopy. Because the humification index decreases with depth of soil horizon, so we can say that lower soil layer content "older" more humified humic substances, which corresponds with results of other used methods.

Klíčová slova

soil humic substances, compost, spectroscopic methods, Luvi-Haplic Chernozem

Autoři

ENEV, V.; KLUČÁKOVÁ, M.

Rok RIV

2012

Vydáno

7. 12. 2012

Nakladatel

Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno

Místo

Brno

ISBN

978-80-214-4425-6

Kniha

Studentská konference Chemie je život - Sborník abstraktů

Číslo edice

Strany od

276

Strany do

281

Strany počet

BibTex

@inproceedings{BUT97158,
  author="Vojtěch {Enev} and Martina {Klučáková}",
  title="Effects of industrial compost on chemical and spectroscopic properties of soil humic substances from Luvi-Haplic Chernozem",
  booktitle="Studentská konference Chemie je život - Sborník abstraktů",
  year="2012",
  number="1",
  pages="276--281",
  publisher="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno",
  address="Brno",
  isbn="978-80-214-4425-6"
}