Using basalt flour and brown algae to improve biological properties of soil contaminated with cadmium

In order to achieve homeostasis of soil, the potential of alleviating substances (two innovative: basalt flour and brown algae extract against two classic compounds: barley straw and compost) were analyzed in soil contaminated with cadmium. The studies thus determined the activity of urease, number...

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Bibliographic Details
Published in:Soil and water research 2015-01, Vol.10 (3), p.181-188
Main Authors: ZABOROWSKA, Magdalena, KUCHARSKI, Jan, WYSZKOWSKA, Jadwiga
Format: Article
Language:English
Subjects:
Algae
Ammonification
Arthrobacter
Azotobacter
Bacteria
Barley
Barley straw
Basalt
Biological properties
Cadmium
Cadmium chloride
Composting
Composts
Crop yield
Cultivated plants
Fertilization
fertilizing substances
Flour
Homeostasis
microorganisms
Parameters
Phaeophyceae
Rhizosphere
Sediment pollution
soil
Soil analysis
Soil bacteria
Soil conditions
Soil contamination
Soil fertility
Soil microorganisms
Soil pollution
Soil properties
Soil resistance
Soils
Straw
Urease
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Summary:In order to achieve homeostasis of soil, the potential of alleviating substances (two innovative: basalt flour and brown algae extract against two classic compounds: barley straw and compost) were analyzed in soil contaminated with cadmium. The studies thus determined the activity of urease, number of ammonification bacteria, nitrogen-immobilizing bacteria, Arthrobacter sp., Azotobacter sp., and spring barley yield. The analyzed parameters were presented as the following indices: RS – resistance of soil; EF – fertilization effect of an alleviating substance; and R:S – rhizosphere effect. Cadmium was applied as CdCl2∙2.5H2O at the following doses: 0, 4, 40, 80, 120, 160, and 200 mg Cd2+/kgof soil. Straw increased the values of most examined parameters, mainly at lower doses of cadmium. Among the cultivated plants, resistance was most stimulated by compost. Basalt flour and brown algae extract did not play a major role in the recovery of contaminated soil. Ammonification bacteria were the least sensitive to stress associated with the deposition of cadmium in soil, whereas Azotobacter sp. was the most sensitive. Urease was found to be a reliable indicator of soil condition.
ISSN:1801-5395
1805-9384
DOI:10.17221/281/2014-SWR