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This Master's thesis compares different types of tillage systems and their impact on weed of crop spring barley. Monitoring had been conducted in 2016, 2017 and 2018. The first observation were taking place on the field station in Žabčice where weeds were monitored during vegetation. The second monitoring had taken place for the first two years in Syrovice and the last year in Sobotovice. These experiments had evaluated weed infestation after harvest of the main crop. There had always been monitored the three different technologies. The obtained data were processed by the statistical program Canoco 5.0. The most weeds plants had been founded in the no-tillage variant in experiment No. 1 (Žabčice). For example persistent perennial weed species such as Cirsium arvense, Convolvulus arvensis. The smallest weeds infestation were detected in minimum technology with the common species Veronica persica. The most weeds plants had been founded in variants of tillage with disc cultivator in experiment No. 2 (Syrovice, Sobotovice). Occured common species: Amaranthus retroflexus, Hordeum vulgare – volunteer. On the other hand, the less weeds had been observed at the control variant (with no-tillage after harvest of the main crop) - for example: Anagallis arvensis, Chenopodium hybridum or Veronica polita. The results suggest that the different types of tillage systems and the climate conditions of the year have a significant impact on weed infestation. |
