Využití NIR spektroskopie pro stanovení obsahu organické hmoty v orných půdách

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F07%3A2740" target="_blank" >RIV/00027006:_____/07:2740 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The utilization of NIR spectroscopy for determination of the soil organic matter content in arable soils

Popis výsledku v původním jazyce

The NIR spectra of the soil samples were measured on two different spectrometers, (1) FOSS NIRSystem 6500 and (2) FT-NIR Nicolet Antaris. The spectra were evaluated in relation to the chemical characteristics of the soil samples. The accuracy of the prediction was similar on both spectrometers, although in case of (1) the samples were scanned in visible and NIR spectra (400 - 2500 nm), while in case of (2), the spectra were scanned only in part of NIR band (1000 - 2500 nm) accompanied with Fourier transform. The NIR spectra were measured twice, first for the air dried soil sample with particle size < 2 mm, and second for the finely milled samples. The sample milling did not provide a significant improvement of prediction. The highest prediction accuracy was gained from samples of soil aggregates in determination of the content of total organic carbon (wet combustion) correlation coefficient 0.80 (1), resp. 0.84 (2) and total organic nitrogen 0.84 (1), resp. 0.77 (2). In descending orde

Název v anglickém jazyce

The utilization of NIR spectroscopy for determination of the soil organic matter content in arable soils

Popis výsledku anglicky

The NIR spectra of the soil samples were measured on two different spectrometers, (1) FOSS NIRSystem 6500 and (2) FT-NIR Nicolet Antaris. The spectra were evaluated in relation to the chemical characteristics of the soil samples. The accuracy of the prediction was similar on both spectrometers, although in case of (1) the samples were scanned in visible and NIR spectra (400 - 2500 nm), while in case of (2), the spectra were scanned only in part of NIR band (1000 - 2500 nm) accompanied with Fourier transform. The NIR spectra were measured twice, first for the air dried soil sample with particle size < 2 mm, and second for the finely milled samples. The sample milling did not provide a significant improvement of prediction. The highest prediction accuracy was gained from samples of soil aggregates in determination of the content of total organic carbon (wet combustion) correlation coefficient 0.80 (1), resp. 0.84 (2) and total organic nitrogen 0.84 (1), resp. 0.77 (2). In descending orde

Druh

D - Stať ve sborníku

CEP obor

DF - Pedologie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Workshop ?Practical Solutions for Managing Optimum C and N Content in Agricultural Soils IV?.

ISBN

978-80-213-1721-5

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

128-135

Název nakladatele

ČZU Praha

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

20. 6. 2007

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—