Microbial utilization and transformation of humic substances extracted from soils of long-term field experiments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F01%3A%23%23%23%23%23253" target="_blank" >RIV/00027006:_____/01:#####253 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Microbial utilization and transformation of humic substances extracted from soils of long-term field experiments

Original language description

Humic acids (HA) extracted with alkali from non-fertilised and fertilised (NPK + organic manure) plots of long-term, ie.45 years, field experiments were added as a supplemental source of nutrients or as the sole sources of carbon and nitrogen to semi-aerobic cultures of complex microbial communities indigenous to the same individual soils. Depending on the experimental conditions, between 2.7 % and 47.3% of the added HA preparations were utilized in 12 months. In full strength nutrient media these numbers seemed affected by some novel microbially produced HA-like substances. A average utilization rate was 33 % for the HA from an unfertilised orthic Luvisol plot, whereas HA preparations extracted fro fertilised plots of the orthic Luvisol or a dystric Cambisol soil site were utilised to 27 % and 15 %, respectively. The HA preparations re-isolated after 12 months from microbial cultures exhibited differences in elemental and structural characteristics, corresponding mainly with the nutri

Czech name

Mikrobiální využití a transformace huminových kyselin extrahovaných z půd dlouhodobých polních pokusů

Czech description

Humic acids (HA) extracted with alkali from non-fertilised and fertilised (NPK + organic manure) plots of long-term, ie.45 years, field experiments were added as a supplemental source of nutrients or as the sole sources of carbon and nitrogen to semi-aerobic cultures of complex microbial communities indigenous to the same individual soils. Depending on the experimental conditions, between 2.7 % and 47.3% of the added HA preparations were utilized in 12 months. In full strength nutrient media these numbers seemed affected by some novel microbially produced HA-like substances. A average utilization rate was 33 % for the HA from an unfertilised orthic Luvisol plot, whereas HA preparations extracted fro fertilised plots of the orthic Luvisol or a dystric Cambisol soil site were utilised to 27 % and 15 %, respectively. The HA preparations re-isolated after 12 months from microbial cultures exhibited differences in elemental and structural characteristics, corresponding mainly with the nutri

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DF - Pedology

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Soil Biology

ISSN

1164-5563

e-ISSN

—

Volume of the periodical

37

Issue of the periodical within the volume

—

Country of publishing house

PF - FRENCH POLYNESIA

Number of pages

8

Pages from-to

167-174

UT code for WoS article

—

EID of the result in the Scopus database

—