The effect of organic fertilizers and biostimulants on oregano (origanum vulgare) yield and essential oil

The purpose of this study was to investigate the effect of biological fertilizers and a natural origin stimulant in oregano cultivation. For the purposes of the study a field experiment was established in Larissa (central Greece). There was used a factorial experimental design with three factors: a) T1: Control, b) T2: Application of 1500 kg ha-1 Italpollina + 2 sprays with Auxym and c) T3: Application of 1500 kg ha-1 Solfero + 2 sprays with Auxym under four replications. The fresh and dry total weight of T2 and T3 were reduced to rates of approximately 4% and 6% respectively, compared to those of T1. Contrary to the above observation, the dry drogue weight of T1 plants was reduced by approximately 13.5% compared to T2 and by 7% compared to T3. Finally, essential oil yield was higher in T2, at rates of 21% and 15% compared to T1 and T3 respectively. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0)