Relations between soil properties and the 1 M NH4NO3 soluble mobile element fraction

Rékási, M. and Filep, T. (2010) Relations between soil properties and the 1 M NH4NO3 soluble mobile element fraction. Agrokémia és Talajtan, 59 (1). pp. 109-116. ISSN 0002-1873

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The aim of the present study was to establish whether the 1 M NH4NO3 extraction is a suitable method for determining the background concentrations of mobile element fractions in soils and for describing the relations among mobile element fractions and soil properties. The 1 M NH4NO3 extraction resulted As, Cr and Pb concentrations below the detection limit in 90% of the investigated soils. This shows that the mobile element content determined simply in 1 M NH4NO3 solution is probably inadequate for the determination of the mobile background concentrations of these elements. Therefore, in the risk assessment of soil contamination other soil properties and element fractions – like “total” (cc. HNO3+H2O2 soluble) – should also be taken into consideration. The mobile Al concentration increased exponentially below pH 4. No correlation was found among 1 M NH4NO3 soluble mobile As, Cr, Cu and Pb element concentrations and any investigated soil property. Mobile Co, Mn, Al, Ni and Zn concentrations were determined mainly by soil pH. Soil colloid content correlated particularly with mobile Sr and B contents.

Item Type: Article
Subjects: S Agriculture / mezőgazdaság > S1 Agriculture (General) / mezőgazdaság általában > S590 Soill / Talajtan
Depositing User: xFruzsina xPataki
Date Deposited: 17 Jul 2017 13:13
Last Modified: 17 Jul 2017 13:13

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