Topic of the thesis deals with the influence of fertilization on qualitative and quantitative characteristics of semi-natural grassland. The aim is to assess the effect of fertilization, timing of grass cutting (1st cutting, 2nd cutting, 3rd cutting) and a use of plants (double-cut, triple-cut) on organic nutrient content (crude protein, crude fibre, water soluable carbohydrate, digestibility of crude protein), ash plants, diversity of the species and yields of semi-natural grassland. Research was done in the years 2011 and 2012. Intensity of fertilization is graded as following: Not Fertilized, Fertilized 30P+60K, Fertilized 45N+PK, Fertilized 90N+PK, Fertilized 135N+PK and Fertilized 180N+PK. Semi-natural grass is based on a station in the area of Zdarske Vrchy. Lowest yields were assessed on unfertilized grassland and on the other hand the highest yields were assessed on the fertilized grassland 180N+PK. Major differences (P<0,05) in crude protein and digestible of crude protein were in between the cuttings during 2011 and 2012. Hill's diversity index showed higher values at triple-cut grassland. The highest values of fertilisation had the PK type of fertilisation. The fertilisation had some positive influence on (P<0,05) occurence of Alopecurus pratensis L., Poa pratensis L. in the grassland. The fertilisation subdued occurence of Ranunculus acris L., Carex spp., Anthoxanthum odoratum L. and other less nutricious species. The quotient of clover was increased (P<0,05) after the application of PK. However it was decreased (P<0,05) after the application of nitrogen.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:179807 |
| Date | January 2014 |
| Creators | Šplíchal, Zdeněk |
| 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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