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Škodlivost plevelů polních plodin v provozních podmínkách
Slováková, Veronika
The thesis evaluated occurrence and harmfulness of weeds on the lands grown in organ-ic and conventional farming in 2014 and 2016. Two companies (AGRODELTA, s. r.o. a JASNO, spol. s r.o.) used monitored lands on a daily basis. Following crops were evaluated in organic farming: winter wheat under sowing with vetch, winter wheat and triticale under sowing with vetch, spring oat with field pea and spring oat. In terms of conventional farming, following crops were evaluated: winter rape, winter wheat, spring wheat under sowing with alfalfa, maize around sowing by winter barley, maize and al-falfa. Total number of evaluated weeds in terms of organically managed fields is 34, while in conventionally managed fields the number of evaluated weeds was 24. Follow-ing weed species in organically managed fields were selected as the most dangerous and harmful: Tripleurospermum inodorum, Sinapis arvensis, Cirsium arvense a Taraxacum sect. Ruderalia. In case of conventionally managed fields, most dangerous and harmful weed species were Tripleurospermum inodorum, Cirsium arvense, Taraxacum sect. Ruderalia, Echinochloa crus-galli a Elytrigia repens.
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