The aim of the paper was to assess the influence of the graded doses of nutrients, different intensities of exploitation and weather conditions of the particular year on the representation of individual agro-botanical groups and dominant species, species diversity and production of dry matter forage in semi-natural grassland. The additional supply of fertilizers resulted in the increased (P<0.05) proportion of grasses, in the decreased (P<0.05) representation of other herbs and in the withdrawal (P<0.05) of clovers. Moreover, the application of nitrogen resulted in the decreased (P<0.05) of diversity indices and number of species. By contrast, PK fertilization had a positive influence on the number of species, diversity indices and proportion of clovers. The growing supply of nutrients and the higher intensity of exploitation led to the increased (P<0.05) production of dry matter forage. The most effective fertilization appears by PK fertilization after which the highest increase of dry matter forage was recorded as well as the highest effectiveness of nutrients utilization. The two cut exploitation of grasslands resulted in the dominance of grasses (P<0.05) and in the decreased (P<0.05) proportion of other herbs and clovers.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:249362 |
| Date | January 2014 |
| Creators | Nawrath, Adam |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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