Influence of meteorological factors and agricultural management form on weed species structure in model territory of agricultural cooperative Ocova

The paper is aimed at evaluation edaphic, ecological, climatic conditions and agricultural management forms on weed diversity structure in relation to optimisation of land use on the model territory of Agricultural Cooperative (AC) Ocova (Central Slovakia). The research was carried out using standard methodology for determining the potential weed infestation,, seeds of weed species classification methodology according to LISKA (2002), determining the weed species spectrum, richness and diversity via Shannon-Wiener index of diversity and range of ecological dominant weed species in the cultural stands of winter wheat, winter oilseed rape, maize, alfalfa and spring barley for the duration of the experiment. In total, 30 weed species were determined. The most abundant species were: Persicaria maculata, Sinapis arvensis Amaranthus retroflexus, Chenopodium album, Tripleurospermum maritimum, Rumex acetosa, Fallopia convolvulus. The research results confirm the influence of soil conditions and amount of atmospheric rainfall only partially. The obtained data indicate that soil quality and rainfall amount play a singnificant role especially in such agrocoenoses where the same crop was cultivated for several years (i.e., alfalfa or permanent lawn).