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	Determination of seed germination in the field of perennial weeds DOSTÁLOVÁ, Petra The aim of the thesis is to describe selected weed species and possibilities of their regulation. The experiment consisted of weed germination within different temperature and light circumstances with dandelion, creeping thistle and broad-leaved dock. The results are evaluated and reported in tables and graphics. Detailed record
	Methods and means of weed control in organic farming systems MACHKOVÁ, Božena The aim of the Bachelor thesis was the guest appearance of weeds on arable land, laboratory verification of the ability of regeneration the rhizomes of couch-grass (Elytrigia repens L.), creeping thistle (Cirsium arvense L.) and an overview of the regulation of coarse plants on arable land in organic farming system. In the Bachelor's thesis is also described the biology and the possibility of regulation of the couch grass and pcháče rolního (osetu). The results of the monitoring are recorded in different graphs and tables. Detailed record
	Mechanical and chemical control of perennial weed ŠMÍDA, Petr Perennial weed creeping thistle and couch-grass were controlled for tree year period in Prepychy village (Rychnov nad Kneznou district). Stubble breaking had cardinal effect on regeneration of hypogenous vegetative organs both wedd and endorsed their appearance. Following ploughing and ground reproduction before seeding didn´t control these weed. In chemical control section was tested an effectiveness of 22 herbicides. Creeping thistle showed the highest sensitivity against the majority of herbicides in growth phase F4 (stalk height 20 cm). Results of experiments showed an importance of application a.i. glyphosate in perennial weed control system. In winter wheat vegetation showed herbicides Husar and Lontrel 300 the highest effect against creeping thistle. Broad-leaved crops give a possibility to use graminicides against couch-grass. Graminicides Fusilade Forte 150 EC and Gallant Super shown the highest effect against couch-grass. Detailed record

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