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The Influence of Nitrogen on the Biological Properties of Soil Contaminated with Zinc.
- Source :
-
Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2017 Mar; Vol. 98 (3), pp. 426-432. Date of Electronic Publication: 2016 Nov 21. - Publication Year :
- 2017
-
Abstract
- This study analyzed the relationship between nitrogen fertilization and the biological properties of soil contaminated with zinc. The influence of various concentrations of zinc and nitrogen on the microbiological and biochemical activity of soil was investigated. In a laboratory experiment, loamy sand with pH <subscript>KCl</subscript> 5.6 was contaminated with zinc (ZnCl <subscript>2</subscript> ) and fertilized with urea as a source of nitrogen. The activity of acid phosphatase, alkaline phosphatase, urease and β-glucosidase, and microbial counts were determined in soil samples after 2 and 20 weeks of incubation. Zinc generally stimulated hydrolase activity, but the highest zinc dose (1250 mg kg <superscript>-1</superscript> ) led to the inhibition of hydrolases. Nitrogen was not highly effective in neutralizing zinc's negative effect on enzyme activity, but it stimulated the growth of soil-dwelling microorganisms. The changes in soil acidity observed after the addition of urea modified the structure of microbial communities.
- Subjects :
- Acid Phosphatase drug effects
Acid Phosphatase metabolism
Alkaline Phosphatase drug effects
Alkaline Phosphatase metabolism
Nitrogen pharmacology
Soil Pollutants analysis
Urea
Urease drug effects
Urease metabolism
Zinc pharmacology
beta-Glucosidase drug effects
beta-Glucosidase metabolism
Nitrogen analysis
Soil chemistry
Soil Microbiology
Zinc analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1432-0800
- Volume :
- 98
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Bulletin of environmental contamination and toxicology
- Publication Type :
- Academic Journal
- Accession number :
- 27872971
- Full Text :
- https://doi.org/10.1007/s00128-016-1977-2