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National Repository of Grey Literature 22 records found  beginprevious21 - 22  jump to record: Search took 0.01 seconds. 
Biology and control of catchweed
 VONDRUŠKA, Jakub
A very limited range of crops provides the human nutrition. In some time there was selected a little amount of weedy species that plays an important role with respect to quantum and danger. Galium aparine belongs to these species. Therefore an herbicide experiment was carried out with Triticum aestivum catering for a chemical regulation of this weed. In particular 26 varieties of a half of a hectare there was used 21 herbicide preparations and their combinations altogether in demanding conditions of low preparation of soil. It was realised at a land with a large amount of Galium aparine. Most of the preparations had a very good effect regarding the actual control. At some of them Galium aparine nevertheless outgrew and produced seeds. Although these seeds were produced in a little amount, they supply the reserve in a soil. In the literary recherche are described biology, harmfulness and potential methods of regulation of Galium aparine.
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The control of weeds in maize stand
 BÍLÁ, Alena
For processing my theses I chose an agricultural company Agroprofit Chotýčany s.r.o, that concentrate mostly on the production of maize silage for biogas power station. The firm has been using the non-tillage system of soil cultivation for a several years, which contributes to a higher occurrence of weeds in a soil. Therefore I tried to control the most significant weeds chemically (Tripleurospermum inodorum, Polygonum convolvulus, Echinochloa crus-galli, Amaranthus retroflexus, Chenopodium album, Cirsium arvense) in Zea mays. I was monitoring especially Elytrigia repens that is difficult to fight in the non-tillage system of soil cultivation. The experiment was being realised for two years. There were used 14 herbicide preparations and their combinations in 8 varieties at 4 hectares. The preparations were analysed considering their affect on weeds and economical viewpoint.
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National Repository of Grey Literature : 22 records found   beginprevious21 - 22  jump to record:
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