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Vyhodnocení aktuálního zaplevelení v různých typech osevních postupů
 Vacl, Miroslav
The goal of this diploma thesis was to evaluate the weed infestination and to state differences in weed infestination in monoculture, Norfolk and different soil tillage technologies. The weed infestination was carried out on experimental plots of the Agricultural Research Institute in two periods during the spring crop emergence and in summer before the harvest. Weed species, their number and abundance were deteriminated on each of the experimental plots. To the representativeness of the research was ensured by selecting of eight samples from an area of 0.25 square meters. The monoculture spring barley was infested with the following weeds: Amaranthus retroflexus, Chenopodium album and Elytrigia repens. The monoculture winter wheat was infested with: Gallium aparine and Polygonum lapanthifolium. The most abundant species were occured Amaranthus retroflexus, Chenopodium album and Elytrigia repens in clover and beet in crop rotation Norfolk. The technology occurred species Echinochloa crus-galli, Chenopodium album and Anagalis arvensis in minimizing peas and canola. The weeds were also presented in smaller quantities in soil tillage technology. The winter wheat and spring barley were infested with: Lamium amplexicaule, Gallium aparine and Polygonum lapanthifolium in the both technologies.
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