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	Biology, occurrence and control of weeds in crops of root crops CHODL, Tomáš The aim of the present diploma thesis is to widen knowledge of the chemical regulation of weeds in row crops. To establish the effectiveness of herbicides, we set up a small lot at a carefully chosen spot in the potato-growing region near Strakonice. We conducted a comparison of the effects of three herbicide combinations on two potato varieties (Red Anna, Laura). Two combinations proved pre-emergent (Afalon 45 SC+Command 36 SC; Sencor 70 WG+Command 36 SC), one post-emergent (Titus 25 WG). Subsequently, we evaluated economic costs on weeds regulation and suggested preliminary measures to be taken. Detailed record
	Control of creeping thistle (Cirsium arvense L. Scop.) in agriculture crops Mikulka, Jan This methodology includes the newest knowledge on biology, ecology and reproduction of creeping thistle including newest finding about methods integrated weed management. This methodology summarised influence of crop rotation, soil tillage and methods application of herbicides in field crops. Fulltext: PDF 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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