KSU TARIM VE DOGA DERGISI-KSU JOURNAL OF AGRICULTURE AND NATURE, cilt.29, sa.4, ss.968-976, 2026 (ESCI, TRDizin)
Thymus syriacus Boiss. It is an evergreen, perennial sub-shrub that is
distributed throughout the Eastern Mediterranean, including Türkiye.
Research Article
The use of organic and mineral fertilizers differs in their contributions to
sustainability and soil fertility. While the mineral fertilizers are believed
Article History
to ensure rapid nutrient availability, organic fertilizers play a vital role
Received : 28.05.2025
in maintaining long-term soil health and supporting sustainable
Accepted : 30.10.2025
production systems. In the present study, a field experiment on T.
syriacus Boiss. was conducted to examine the effects of organic and
Key Words
mineral fertilizers on essential oil (EO) content and composition in the
Carvacrol
Eastern Mediterranean Region of Türkiye. The treatments included
Essential oil
control (no fertilizer), manure (25 ton ha-1), vermicompost (10 ton ha-1),
Fertilizer
and mineral fertilizer (0.4 ton ha-1). Treatments were found to be
Thyme
significantly effective on EO content and components (p<0.05). In both
Vermicompost
years, control had lower EO content (1.12-1.87%); furthermore,
vermicompost had the highest EO content (1.30-2.57%). In the 2nd year,
fertilizer applications had significantly improved essential oil content
compared with the control. Carvacrol and o-cymene were found as the
main components. Carvacrol content ranged from 62.98% to 84.56%, with
the highest observed in second-year vermicompost-applied samples. As a
result, vermicompost organic fertilizer can be recommended for the
sustainable cultivation of T. syriacus , as it improves soil health while
maintaining high essential oil yield and carvacrol content similar to or
even greater than those achieved with mineral fertilizers.