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Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Károly ECSERI, István Dániel MOSONYI, Andrea TILLYNÉ MÁNDY, Péter HONFI

The main reasons of archaeophytes disappearance are the changing structure of agriculture production and increasing chemicals application. In our investigation we tested the sensibility of four species with using two different modes of action herbicides. In preventive applied broadleaf herbicide (glyphosate) did not have significant effect by comparison with control. However the examined soil herbicide (pendimetalin) was lethal in 100 % in case of Adonis aestivalis, Consolida regalis and Papaver rhoeas. This effect was experienced also by preemergent and by postemergent treatment. This herbicide destroyed every plants and the rate of uncovered soil surface was about 80-90 % even if in the middle of summer. Centaurea cyanus was significant in decoration value. Well useable, but just in windless area. Consolida regalis was weak weed competitor in applied sowing density. It had high decoration value, but the flowering period was much shorter by comparison with Centaurea cyanus. The Papaver rhoeas had a medium flowering intensity, good soil covering ability and it is a strong competitor species. The Adonis aestivalis is not recommended in extensive environmental conditions because it’s too small sized. The optimal date of sowing of these four species is early autumn (especially in not irrigated area).

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