Niektóre efekty stosowania herbicydów w Caucalido-Scandicetum [Some effect of herbicide application in Caucalido-Scandocetum]

Abstract

Excess in application of herbicide such as Aminopielik and Chwastox in cereals crop was the cause of the increase in cover of some weeds (in particular grass), a few decrease in cover of a cultivated plant, a few decrease of number's species and the impoverishment composition in the Caucalido-Scandicetum association in the “Nadnidziański Landscape Park” area. In the records of the fields where herbicide was applied (tab. 1: records 11–20), the weeds cover surplused cereals cover. Apera spica-venti and sometimes Avena fatua dominated in these records and the number of dicotyledonous species was insignificant. Where herbicides were not applied (tab. 1: records 1–10), the overall weeds cover was smaller than the cover of a cultivated plant and the weeds number was significantly bigger. In these fields there existed an interspecious competition which didn't allow large development of one or two weed species. The research was made in summer 1997 by the Braun-Blanquet's method in cereals and data of herbicide application taken down.