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The chromatograhy method of soil and plant extract analysis was developed by E. Pfeiffer and applied in agriculture, biology and silviculture. The qualitative method of analysis was applied for the analysis of plant interaction in the sub-alpine region of Călimani Mountains. More recently, the results of the analysis (chromatogrames for each specie and interactions) were further analysed from an aesthetics stand point and presented during the event „European Researchers’ Night”.