National Repository of Grey Literature 3 records found  Search took 0.02 seconds. 
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.
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.
Control of couch grass Elytrigia repens (L.) Desv. on agriculture land
Mikulka, Jan
This methodology includes the newest knowledge on biology, ecology, expansion and reproduction of couch grass including newest finding about methods integrated weed management. This methodology summarised influence of crop rotation, soil tillage, fertilisation and methods application of herbicides in field crops.
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