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The effect of contamination of loamy sand with single heavy metals (Cd2+, Cu2+, Zn2+, Pb2+) and with their mixtures on the number of copiotrophic, ammonifying, nitrogen immobilising, cellulolytic bacteria and bacteria of the Arthrobacter and Pseudomonas genera was examined in a pot experiment. The research was performed in two series: with soil sown with oat and unsown soil. It was found that the...
The leaching of chemical compounds (NNO3, NNH4, Norg, PpO4 and Ptot) and trace elements (Cd, Cu, Cr, Ni, Zn, and Pb) from sewage sludge and their migration through the soil profile is the subject of this study. The column experiments were carried out under atmospheric conditions corresponding to naturally occurring storm events - sewage sludge amended soil was irrigated with high rates of water....
The effect of soil contamination with CuSO₄ · 5H₂O applied in the following doses of Cu kg⁻¹: 150, 300, 450 and 600 mg on the activity of dehydrogenases, urease and acid phosphatase and alkaline phosphatase was studied in a pot experiment. Two types of soil were examined: heavy loamy sand and silty sandy loam. The experiment was completed in two series: with yellow lupine cultivation and without plant...
A laboratory study was carried out to evaluate the protective role of ectomycorrhizal fungi against contamination of plants growing in soil treated with cadmium at a dose of 150 ^g Cd/ g soil. An alginate- immobilized inoculum of mycorrhizal fungi was used to introduce the fungi to the soil. The impact of fungi was examined in terms of changes in cadmium levels in inoculated and non-inoculated seedlings...
Monitoring of contaminants in different agricultural sectors has a long history in Poland. Regional Agrochemical Stations (OSCHR) and the Institute of Soil Science and Plant Cultivation (IUNG) in Pulawy have performed analyses of chemical contaminants in arable soils within two research programs on countrywide scale in the years 1991-2001. Food and agroproduct contamination has been researched in...
The aim of these experiments was to apply magnesium (50 and 100 mg Mg kg-1 soil) to neutralise the potentially negative effects of soil contamination by cadmium (10, 20, 30 and 40 mg Cd kg-1 soil) on the number of some groups of microorganisms. Another objective was to determine the relationship between the number of these microorganisms relative to yield of yellow lupine and some physicochemical...
In the years 1995 and 1996 a study was conducted to investigate the heavy metal contamination of soil and crops (flax and oil-seed rape) in the vicinity of the "Glogow Copper Smelter" in Poland. The concentration of copper, as the main soil pollutant, ranges from background amounts to levels higher than admissible limits. The patterns of copper spatial distribution observed in the vicinity...
The most rational methods to reduce Cu and Zn mobility in the soil as well as their toxicity to spring triticale and pea-oat mixture cultivated on the sward-podzolic light loamy soil appeared to be double-rate liming and combined application of organic and lime fertilizers. On the soil highly contaminated with Cu and Zn it is desirable to give preference to the cultivation of annual grasses as they...
The objective of the study was to evaluate zinc and lead contamination in the upper, organic layer of the soil around zinc and lead smelting plant KGH "Bolesław" in Bukowno near Olkusz. The study material were samples of the upper layer (0-5 cm) of the soil collected at the distance of 10, 25, 50, 100 150, 200, 250 m, and further from each of the 250 m up to 3 000 m sections in 8 directions:...
The present paper reviews content and phytoavailability of heavy metals (Cd, Cu, Ni, Pb, Zn) in the soils of seven selected regions in the former Tarnów province, considered to be particularly endangered by contamination by these metals. One hundred soil samples were collected, 50 from the 0-10 cm layer and 50 from the 40-50 cm layer and mixed meadow sward from the same places. Most of the examined...
The results of measurements of heavy metal concentration and plutonium isotope activity in soil samples from a former Soviet Army military range in the region of Borne-Sulinowo are presented. Heavy metal concentrations determined by using ED-XRF method for elemental analysis do not exceed the limits recommended by the European Community for plowing soils. Mean values of activity of Pu isotopes, determined...
This paper present the results of investigations of the level of contamination by radioactive isotopes of grass and soil of the Polish and Ukrainian Roztocze area. Heavy metal contents in soil were also measured. The highest level of radioactivity was found in the Northwestern part of Roztocze which may be explained by the close vicinity of industrial centers. The presence of caesium gave from 0.6...
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