Publication detail

The physico-chemical properties and biostimulative activities of humic substances regenerated from lignite

DAVID, J. ŠMEJKALOVÁ, D. HUDECOVÁ, Š. ZMEŠKAL, O. VON WANDRUSZKA, R. GREGOR, T. KUČERÍK, J.

Original Title

The physico-chemical properties and biostimulative activities of humic substances regenerated from lignite

Type

journal article in Web of Science

Language

English

Original Abstract

The positive effect of humic acids on the growth of plant roots is well known, however, the mechanisms and role of their physical structure in these processes have not been fully explained yet. In this work, South-Moravian lignite was oxidized by means of nitric acid and hydrogen peroxide to produce a set of regenerated humic acids. The elemental composition, solid state stability and solution characteristics were determined and correlated in vitro with their biological activity. A modified hydroponic method was applied to determine the effects of their potassium salts on Zea mays seedlings roots with respect to the plant weight, root length, root division, and starch and protein content. The relations between the determined parameters were evaluated through Principal Component Analysis and Pearsons correlation coefficients. The results indicated that the most important factor determining the biological activity of South-Moravian lignite potassium humates is related to the nature of selfassemblies, while the chemical composition had no direct connection with the root growth of Zea mays seedlings. It was demonstrated a controlled processing that provided humic substances with different chemical and physicochemical properties and variable biological activity.

Keywords

Lignite humic substances, Modification, Thermal analysis, Chromatography, Spectroscopy, Biological activity

Authors

DAVID, J.; ŠMEJKALOVÁ, D.; HUDECOVÁ, Š.; ZMEŠKAL, O.; VON WANDRUSZKA, R.; GREGOR, T.; KUČERÍK, J.

RIV year

2014

Released

21. 3. 2014

Publisher

Springer

Location

Berlin, Germany

ISBN

2193-1801

Periodical

SpringerPlus

Year of study

3

Number

1

State

Federal Republic of Germany

Pages from

1

Pages to

16

Pages count

16

URL

http://www.springerplus.com/content/3/1/156

BibTex

@article{BUT106167,
  author="DAVID, J. and ŠMEJKALOVÁ, D. and HUDECOVÁ, Š. and ZMEŠKAL, O. and VON WANDRUSZKA, R. and GREGOR, T. and KUČERÍK, J.",
  title="The physico-chemical properties and biostimulative activities of humic substances regenerated from lignite",
  journal="SpringerPlus",
  year="2014",
  volume="3",
  number="1",
  pages="1--16",
  doi="10.1186/2193-1801-3-156",
  issn="2193-1801",
  url="http://www.springerplus.com/content/3/1/156"
}