Publication detail

The medium-term effect of natural compost on the spectroscopic properties of humic acids of Czech soils

ENEV, V. DOSKOČIL, L. KUBÍKOVÁ, L. KLUČÁKOVÁ, M.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

In the current work, humic acids (HAs) isolated from natural compost and unamended and amended soils in a medium-time field experiment were characterized to evaluate the effects of the amendment at rates of 124, 239 and 478 t/ha on their chemical, compositional and structural features. The impact of the application of compost on their properties was observed over 3 years. Humic acids were characterized using spectral methods and elemental analysis. Humic acid isolated from compost was predominantly aliphatic, with a larger content of nitrogen and low degree of aromaticity and humification. The typical maximum (280/345 nm) of HA obtained from compost lies within the T (tryptophan-like) region, which can be ascribed to proteinaceous organic materials. On the other hand, the HAs obtained from amended soil were mainly aromatic in character, with a larger distribution of oxygen-containing functional groups, molecular weight and greater aromaticity. Fluorophores of HAs obtained from amended soil lie within the C (humic-like) region with typical maxima centred in the range 430–450/500–540 nm, occurring usually in HAs isolated from soil, peat and lignite. According to ultra-violet/visible and Fourier-transform infrared (FTIR) spectroscopy, the larger oxygen contents of these HAs are associated with the substitution of aromatic rings by oxygen-containing functional groups such as carboxylic, hydroxyls and ethers. On the basis of FTIR spectra, it was shown that HAs obtained from amended soil 2 and 3 years after compost application were enriched by peptid, aromatic and polysaccharide compounds absorbing at 1540, 1515 and 1040/cm, respectively.

Keywords

Humic acids; luvic chernozem; medium-term time; natural compost amendment; proteinlike substances

Authors

ENEV, V.; DOSKOČIL, L.; KUBÍKOVÁ, L.; KLUČÁKOVÁ, M.

Released

24. 10. 2018

Publisher

Cambridge University Press

Location

Cambridge University

ISBN

0021-8596

Periodical

JOURNAL OF AGRICULTURAL SCIENCE

Year of study

156

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

877

Pages to

887

Pages count

URL

https://www.cambridge.org/core/journals/journal-of-agricultural-science/article/mediumterm-effect-of-natural-compost-on-the-spectroscopic-properties-of-humic-acids-of-czech-soils/E7B29CDEBD4690B60F33015B11FEE072

BibTex

@article{BUT151152,
  author="Vojtěch {Enev} and Leoš {Doskočil} and Leona {Kubíková} and Martina {Klučáková}",
  title="The medium-term effect of natural compost on the spectroscopic properties of humic acids of Czech soils",
  journal="JOURNAL OF AGRICULTURAL SCIENCE",
  year="2018",
  volume="156",
  number="7",
  pages="877--887",
  doi="10.1017/S0021859618000874",
  issn="0021-8596",
  url="https://www.cambridge.org/core/journals/journal-of-agricultural-science/article/mediumterm-effect-of-natural-compost-on-the-spectroscopic-properties-of-humic-acids-of-czech-soils/E7B29CDEBD4690B60F33015B11FEE072"
}