This thesis deals with the study of the biological activity of humic substances. Based on the literature review preparation procedures were optimized in order to develop new hydrogel forms containing humic substances and biopolymers with high swelling capacity. Besides methodology for the rapid assessment of the biological activity obtained in laboratory conditions were designed and tested. The experimental part focused on characterization of hydrogel samples by means of routine physico-chemical methods, the main attention was paid to sorption of water and release of humic substances into solution. Then the prepared hydrogel materials were tested focusing on the growth effects on the maize. The absorption of mineral nutrients by the roots of plants were studied as well. The motivation of this work comes from the potential of agricultural and environmental applications of such hydrogel materials resulting in a renewal of previously exhausted organic content of soils and consequent interruption of substantial soil degradation.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:216989 |
| Date | January 2013 |
| Creators | Kozelková, Aneta |
| Contributors | Hynšt, Jaroslav, Sedláček, Petr |
| Publisher | Vysoké učení technické v Brně. Fakulta chemická |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.0017 seconds