Evaluation of soil reaction and content of assimilable nutrients in soils of South-Eastern Poland
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| Authors: | Przemysław Tkaczyk1,2, Wiesław Bednarek2, Sławomir Dresler3, Jaromir Krzyszczak4 1Regional Agrochemical Station in Lublin, ul. Sławinkowska 5, 20-810 Lublin, Poland 2Department of Agricultural and Environmental Chemistry, University of Life Sciences ul. Akademicka 15, 20-950 Lublin, Poland 3Department of Plant Physiology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland 4Institute of Agrophysics PAS, 20-290 Lublin, ul. Doświadczalna 4, 20-290 Lublin, Poland |
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| Abstract : | An environmental study was performed in the years 2008-2012 to evaluate actual soil reaction (pHKCl) and content of nutrients in soils of south-eastern Poland and also to determine the relationship of those nutrients to soil properties. To carry out those studies, 15493 soil samples were chemically analysed in certified laboratory of Regional Agrochemical Station in Lublin. In all soil samples particle size distribution was determined using the Laser Diffraction Method, soil reaction – in 1 mol KCl dm–3, phosphorus and potassium using Egner-Riehm method, and magnesium was assayed using Atomic Absorption Spectrometry method. The reaction of non-calcareous soils of south-eastern Poland was acidic (very light soils) or slightly acidic (light, medium and heavy soils), and for calcareous soils the it was alkaline. The chemical analysis revealed that supply of phosphorus was moderate (light and medium non-calcareous and very light calcareous soils), high (very light and heavy non-calcareous soils) and very high (light, medium and heavy calcareous soils), and it depended significantly on the soil reaction. The supply of potassium in non-calcareous soils was moderate and depended significantly on agronomic category and soil reaction. As for magnesium, the supply of this nutrient in calcareous and non-calcareous soils depended on agronomic category and soil reaction. |
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| Keywords : | reaction, nutrients, soil, agronomic category | ||||||||
| Language : | english | ||||||||