Microbial biomass plays a main role in transformations of elements. It participates in transformation biogenic elements and it is a sensitive indicator changes in soil. The conten of soil microbial biomas is not the same, during the year Application of fertilizers can improve soil properties. Sewage sludges aplication on soil can provide not only organic matter, but they can increase soil productivity an provide nutrients, which is important for plants.
In this thesis was watched effect of long-term application of sewage sludge on soil microbial bimass of carbon and nitrogen. Changes microbial biomass of carbon and nitrogen was watched on two sites Suchdol and Červený Újezd. Changes was watched under different system of fertilization. The long-term fertilization was manure, sewage sludge, NPK and unfertilized control. The samples was collected during the April, May, June and July 2014 and 2015 in March , April and June. The content of microbial biomass carbon and nitrogen was estimated by fumigation-extraction method.
On station Suchdol was in the year 2014 highest in April with sewage sludge treatment 237,52 mg C/kg. In the year 2015 was content soil microbial biomass carbon highest on manure treatment 338,90 mg C/kg. On station Červený Újezd was in the year 2014 highest content microbial biomass carbon on sewage sludge treatment 280,13 mg C/kg. The highest content microbial biomass nitrogen on Suchdol in the year 2014 was in the April with NPK treatment 23,19 mg N/kg. The maximum content of soil microbial biomass nitrogen in the year 2015 was with sewage sludge treatment 24,07 mg N/kg. On the stand Červený Újezd was highest content of soil microbial biomass nitrogen in the year 2014. It was on June with manure treatment 21,52 mg N/kg. One year later there was the highest with manure treatment 23,24 mg N/kg.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:315911 |
| Date | January 2017 |
| Creators | Tichá, Alena |
| Contributors | Černý, Jindřich, Růžek, Lubomír |
| Publisher | Česká zemědělská univerzita v Praze |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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