Vztah hustoty porostu ozimých plodin a intenzity zaplevelení v provozních podmínkách

Bc. Radek Punčochář

Master's thesis

The relation between the density of winter crops and the intensity of weed infestation in the operating conditions

Abstract:

Zaplevelení bylo hodnoceno v porostech ozimé řepky a ozimé pšenice v provozních podmínkách početní metodou. Byl sledován případný rozdíl v druhové skladbě plevelů mezi podzimem a jarem v jednotlivých plodinách. Na podzim v řepce ozimé se vyskytoval především Chenopodium strictum a Thlaspi arvense, během jara pak Capsella bursa-pastoris a Tripleurospermum inodorum. U pšenice to na podzim byl Euphorbia cyparissias, Stelaria media a Rumex crispus. Z výsledků, které nejsou statisticky průkazné, je patrné, že existuje vztah mezi hustotou porostu ozimých plodin a druhovou skladbou zaplevelení. Plevele, které se vyskytovaly v řidších porostech řepky, byly Chenopodium strictum, Thlaspi arvense, Triticum aestivum, Tripleurospermum inodorum. V hustějších Lycopsis arvensis, Polygonum arenastrum. U řidších porostů pšenice Avena fatua, Stelaria media a Thlaspi arvense. V hustších porostech se častěji vyskytovaly Geranium dissectum a Erodium cicutarium.

Abstract:

Weed infestation was carried out in the vegetation of oilseed rape and winter wheat in the operating conditions. The aim was to observe a difference between between autumn and spring in the weed species composition in individual crops. Species Chenopodium strictum and Thlaspi arvense were identified in the vegetation of oilseed rape in autumn and species Capsella bursa-pastoris and Tripleurospermum inodorum during spring. Species Euphorbia cyparissias, Stelaria media and Rumex crispus were found in winter wheat during autumn. Results, which are not statistically significant, show that there is a relation between the density of winter crop vegetation and the weed species composition. Species Chenopodium strictum, Thlaspi arvense, Triticum aestivum and Tripleurospermum inodorum occurred in sparse population of oilseed rape. Species Lycopsis arvensis and Polygonum arenastrum were found in denser vegetation of oilseed rape. Species Avena fatua, Stelaria media and Thlaspi arvense were observed in sparse population of winter wheat and in denser species Geranium dissectum and Erodium cicutarium.

Keywords

plevele, hustota porostu, pšenice ozimá, řepka ozimá, Thlaspi arvense, Stelaria media, Tripleurospermum inodorum

Keywords

weeds, the density of vegetation, winter wheat, oilseed rape, Thlaspi arvense, Stelaria media, Tripleurospermum inodorum

Language used: Czech

Date on which the thesis was submitted / produced: 26. 4. 2017

Thesis defence

• Supervisor: Ing. Jan Winkler, Ph.D.
• Reader: Alexandr Neischl, externi

Mendel University in Brno

Faculty of AgriSciences

Master programme / field:
Plant Production / Plant Production