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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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Plevele ekologicky a konvenčně pěstovaných plodin
Slováková, Veronika
The thesis was evaluated using numerical method occurrence of weeds in crops grown in conventional and organic farming. Viewed crops were located on land owned by companies JASNO, spol. s.r.o. and AGRODELTA, s.r.o. In organic farming were eva-luated crops: winter wheat undersowing with vetch and spring oat. In conventional farming were evaluated crops: winter wheat, winter rape and spring wheat undersowing with alfalfa. In organically managed fields was evaluated occurrence of 35 weed spe-cies, in conventionally managed fields, the number of evaluated weeds was 17. Most frequently established weed species in organically managed fields were: Tripleurospermum inodorum, Cirsium arvense and Sinapis arvensis. In conventional fields were most often evaulated species: Tripleurospermum inodorum, Poa annua and Viola arvensis.
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