Mineral fertilization (N,K,P) trials on Salvia officinalis L. were evaluated on the basis of fresh plant and essential oil yields. Quali-quantitative oil characterization was performed using two columns of different polarity. The results of quantitative analyses are reported. It was found that the concentrations of β-thujone, camphor, p-cymene, β-caryophyllene, α-humulene and caryophyllene oxide were affected significantly by the various concentrations of fertilizers.
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Piccaglia et al. (1989) studied this question.