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Regression model for prediction availability of essential heavy metals in soils (CROSBI ID 570692)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Lončarić, Zdenko ; Popović, Brigita ; Karalić, Krunoslav ; Rékási, Márk ; Kovačević, Vlado Regression model for prediction availability of essential heavy metals in soils // Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World / Gilkes, Robert J. ; Prakongkep, Nattaporn (ur.). Brisbane: IUSS (International Union of Soil Science), 2010. str. 92-95

Podaci o odgovornosti

Lončarić, Zdenko ; Popović, Brigita ; Karalić, Krunoslav ; Rékási, Márk ; Kovačević, Vlado

engleski

Regression model for prediction availability of essential heavy metals in soils

The aim of paper was to compare relationshipsof total and plant available essential heavy metals in soils considering soil acidity and humus impacts. Regression models should provide additional data (EDTA extractable fraction) from available data (heavy metal total content, soil pH). The 60 soil samples were analysed for pH, humus, phosphorus, potassium, and additionally for essential heavy metals (Fe, Mn, Zn, Cu, Ni) by extraction by aqua regia and by ethylenediaminetetraacetic acid (EDTA). The heavy metal with highest total content was iron, then manganese, zinc, nickel, and copper regardless of soil pH. The order of EDTA- extracted elements changed with copper jumping from last to third place, but the percentage of total content extracted by EDTA was quite opposite: Cu, Ni, Zn, Mn, and Fe. Soil pH impacted on EDTAextractable fraction and the regression models can predict the EDTA- extractable fraction of Zn, Cu and Ni with acceptable average errors, but not for Fe and Mn. The obligate input data for models are total soil content of certain heavy metal and pH. Model errors decreased using humus content as additional input data. The lowest model errors were for copper in acid soils and nickel in calcareous soils.

aqua regia ; EDTA ; iron ; manganese ; zinc ; copper ; nickel

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Podaci o prilogu

92-95.

2010.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World

Gilkes, Robert J. ; Prakongkep, Nattaporn

Brisbane: IUSS (International Union of Soil Science)

978-0-646-53783-2

Podaci o skupu

19th World Congress of Soil Science: Soil Solutions for a Changing World

poster

01.08.2010-06.08.2010

Brisbane, Australija

Povezanost rada

Poljoprivreda (agronomija)

Poveznice