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Bulgarian Journal of Crop Science   ISSN 0568-465X
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The effect of some herbicides on the composition and structure of the weed association in a young lavender
Desislava Angelova, Stanko Stanev
Abstract: The study was carried in the period 2020-2022 at the Institute for roses and aromatic plants - Kazanlak in a young lavender plantation (Lavandula angustifolia Mill.) variety “Yubileina”. The effect of soil herbicides: Pledge 50 VP (500 g/kg flumioxazine) at a dose of 20 g/da, Bismark KS (clomazon 55 g/l + pendimethalin 275 g/l) at doses of 200 and 250 ml/da, Challenge 600 SC (600 g/l aclonifen) in doses of 200 and 250 ml /da was monitored on the weed association during the first three years after the establishment of the plantation. The results show that Pledge 50 VP controlled the annual species found in the plantation (Amaranthus retroflexus L., Chenopodium album L., Polygonum aviculare L., Portulaca oleracea L., Setaria glauca L.). Bismarck CS and Challenge 600 SC have a smaller effect to annual weeds as their density in higher doses reaches 20-25% compared to the control. No phytotoxic effects were observed during lavender treatment throughout the study.
Keywords: density; herbicides; weeds; young lavender
Date published: 2023-04-26
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