Acta Univ. Agric. Silvic. Mendelianae Brun. 2018, 66, 219-224

https://doi.org/10.11118/actaun201866010219
Published online 2018-02-28

Adsorption of Copper in Soil and its Dependence on Physical and Chemical Properties

Vítězslav Vlček1, Miroslav Pohanka2,3

1Faculty of Agri Science, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
2Faculty of Forestry and wood technology, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
3Faculty of Military Health Sciences, University of Defense, Třebešská 1575, 500 01 Hradec Králové, Czech Republic

Soil samples (n = 11) were collected in the chernozem areas of the Czech Republic (the Central Europe) from the topsoil and used as representative samples. All sampling areas have been used for agricultural purposes (arable soil) and they were selected as typical representatives of agricultural soil. These samples represented the soil with same genesis (to reduction differencies between soil types) but with different soil properties (physical and chemical). Complete chemical and physical analyses were made for confirmation of copper adsorption on solid phase: we analysed the particle size distribution, content of oxidizable carbon (Cox), the cation exchange capacity (CEC), supply of exchange calcium, magnesium, sodium, phosphorus and potassium, soil reaction and the total supply of Fe, Al, Mn, Ca, Mg, K, P and N. The strongest simple correlation between analysed soil properties and copper concentration had content of available magnesium (r = 0.44) and available phosphorus (r = −0.51). In the case of multiple correlations (i. e. collective influence of multiple soil properties) had the strongest influence combination of clay, soil reaction, total content of phosphorus, available magnesium and available phosphorus. The main influence of phosphorus and magnesium is evident. We suppose that copper and phosphorus enter into specific complex. Influence of these five soil properties can explain 92.7 % (r = 0.927) changes in the content of copper changes in the experiment.

Funding

A long‑term organization development plan 1011 (Faculty of Military Health Sciences, University of Defence, Czech Republic) and the Grant No. QK1810233 “Quantification of the impact farming management on soil erosion, soil quality and yields of crops with proposals of the environmentally friendly cultivation technologies” (funded by the National Agricultural Research) are gratefully acknowledged.

References

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