Detail publikace

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.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

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

Vydáno

24. 10. 2018

Nakladatel

Cambridge University Press

Místo

Cambridge University

ISSN

0021-8596

Periodikum

JOURNAL OF AGRICULTURAL SCIENCE

Ročník

156

Číslo

7

Stát

Spojené království Velké Británie a Severního Irska

Strany od

877

Strany do

887

Strany počet

11

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"
}