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| rdf:type
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| Description
| - Assesment of soil organic matter quality is one of the urgent problems of contemporary agriculture. Determination of humic acids (HAs) optical properties using spectroscopic techniques could be a reliable step for this evaluation. We followed differences in the functional groups of HAs preparations and showed correlation between optical indexes and fractional composition of humus. UV-VIS and SFS spectral lines and indexes were measured in mixture 0.1M pyrophosphate sodium solution and 0,1M NaOH, after filtration and appropriate dilution. Differences in the structural composition of HAs originating from different soil types were studied after isolation of HAs preparations using FTIR spectroscopy (KBr + HAs pellets, SRATR FTIR method). Results showed that studied HAs preparations could be divided into two groups. First group included HAs isolated from Chernozem and Haplic Luvisol with higher content of aromatic constituents and condensation degree. The second group were HAs isolated from Eutric Cambisol
- Assesment of soil organic matter quality is one of the urgent problems of contemporary agriculture. Determination of humic acids (HAs) optical properties using spectroscopic techniques could be a reliable step for this evaluation. We followed differences in the functional groups of HAs preparations and showed correlation between optical indexes and fractional composition of humus. UV-VIS and SFS spectral lines and indexes were measured in mixture 0.1M pyrophosphate sodium solution and 0,1M NaOH, after filtration and appropriate dilution. Differences in the structural composition of HAs originating from different soil types were studied after isolation of HAs preparations using FTIR spectroscopy (KBr + HAs pellets, SRATR FTIR method). Results showed that studied HAs preparations could be divided into two groups. First group included HAs isolated from Chernozem and Haplic Luvisol with higher content of aromatic constituents and condensation degree. The second group were HAs isolated from Eutric Cambisol (en)
- Stanovení kvality humusu je důležité z hlediska kvality půdy v zemědělství. Kvality humusu je zkoumána různými metodami a hodnocena různými kriterii. V této práci byly sledovány optické vlastnosti měřením Uv-Vis spekter, SFS (synchronní fluorescenční spektroskopie) spekter extraktů humusu z různých typů půd (Černozem, Hnědozem, Kambizem a Fluvizem z českých lokalit). Ze spekter byly vypočítány humifikační indexy a fluorescenční indexy. Byla zjištěna lineární korelace mezi složením huminových látek a těmito indexy . Z měření fluorescence metodou SFS byly vzorky rozděleny do dvou skupina to podle dominantního obsahu huminových, respektive fulvokyselin. Vzoryk z Černozemě a Hnědozemě obsahovaly více aromatických látky s vyšším stupněm konjugace. (cs)
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| Title
| - Fractionation of humus and optical properties of humic acids originating from different soil types.
- Fractionation of humus and optical properties of humic acids originating from different soil types. (en)
- Frakcionace humusu a sledování optických vlastností huminových kyselin izolovaných z různých půdních typů. (cs)
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| skos:prefLabel
| - Fractionation of humus and optical properties of humic acids originating from different soil types.
- Fractionation of humus and optical properties of humic acids originating from different soil types. (en)
- Frakcionace humusu a sledování optických vlastností huminových kyselin izolovaných z různých půdních typů. (cs)
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| skos:notation
| - RIV/00216305:26310/06:PU63562!RIV07-GA0-26310___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00216305:26310/06:PU63562
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - humus fractionation, humic acids, UV-Vis, FTIR, SFS spectra, Chernozem, Haplic Luvisol, Eutric Cambisol, Fluvi-Eutric Gleysol (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Acta Universitatis Agricultuarae et Silviculturae Mendelianae Brunensis
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Pospíšilová, Ľubica
- Fasurová, Naděžda
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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