Several corn experiments were established in 2014 in two locations (Žabčice, Kobylnice). The goal was to evaluate the weed infestation in corn after a different previous crop and a different tillage method, to focus on the dynamic growth of corn biomass and significant types of weeds under various intensities of weed infestation and to compare the effectiveness of applied herbicides in relation to the crop's yield. The number of individual types of weeds in the experiments with differing seeding procedures and tillage was established with the help of numeric methods. It was shown that the previous crop and tillage had an effect on the presence of weeds in corn. The greatest weed infestation was seen in the corn grown in monoculture and using plough-method tillage. The most significant weeds in corn were Echinochloa crus-galli, Chenopodium album and Amaranthus retroflexus. Different intensities of weed infestation had an effect on the growth of weed and crop biomass. The effectiveness of applied herbicides was evaluated with the help of estimation. The STORY + MILAGRO EXTRA 6 OD preparations showed good activity on the rated weeds; they were applied on the option that had the second highest yield of corn from all the options. Options with postemergent application of herbicides had a higher average yield of corn than options treated in postemergence only partially.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250612 |
| Date | January 2015 |
| Creators | Sittová, Marie |
| 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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