Influence of organic biostimulant Atlas Universal on economic indicators of Oil-bearing rose (Rosa damascena Mill.)
Veselina Badzhelova
, Roksana Mineva, Diyana Dermendzhieva
Abstract: The influence of the biostimulant "Atlas Universal" on the economic performance of the Bulgarian oil-bearing rose has been studied. "Atlas Universal" is obtained through the processing of sludge from urban wastewater treatment plants using an innovative zero-waste technology and contains a rich range of essential nutrients.
The application of the biostimulant improved the economic characteristics of the crop as well as its resistance to adverse climatic changes. Following its use, both flower yield and extracted rose oil increased in all tested variants, with the most significant improvement observed in those where it was applied in combination (both foliar and soil application). The best results were obtained in Variant I (foliar application at a dose of 2 L/ha and soil application at a dose of 50 L/ha), where the increase in flower yield was 27%, and in oil yield, it was 33% compared to the control plots.
Chemical analysis showed that the use of the biostimulant maintained the quality parameters of the essential oil within the standard for Bulgarian rose oil.
Keywords: biostimulant; essential oil; oil-bearing rose; yield
Citation: Badzhelova, V., Mineva, R. & Dermendzhieva, D. (2025). Influence of organic biostimulant “Atlas Universal” on economic indicators of Oil-bearing Rose (Rosa damascena Mill.). Bulg. J. Agric. Sci., 31(5), 924–932
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| Date published: 2025-10-28
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