The study of Changes in essential oil percentage, oil yield and percentage of medicinal plant extract Calendula officinalis L. impact and chemical fertilizers

Subject Areas : The Application of Chemistry in Environment

Received: 2012-06-09 Accepted : 2012-07-16 Published : 2012-11-21

Keywords: Essence yield, essential oil percentage, Herbs, wermicompost,

Abstract :

Regarding the importance of medicinal plants and the lack of sufficient study concerning the evaluation of different sources of fertilizer on evergreen medicinal plant, an experiment in a randomized complete block design with 3 replications and 6 treatments were performed in Meshkin shar, Ardebil in 2013. The experimental treatments include : wermicompost 3 t/he, Nytroksyn 3 L/he, phosphate fertilizer 10 L/he, combination of  vermicompost 1,5 t/he,  phosphate 5 L/he, nytroksin composition 2 L/he,  phosphate treated 3 liters per hectare and control (with on fertilizer ). The measured traits include essential oil percentage, oil yield and percentage. The plants under vermicompost fertilizer had the most performance with the rate of (6033 kg/ ha). Harvest index and extract percentage were not used unter treat effects. The maximum diameter was gained Nytroksin phosphate composition. Most of the treatment with a combination of essential oils Nytrvksyn - phosphate, respectively, the highest yield of essential oil in the treatment combination Nytrvksyn - phosphate and vermicompost treatments were observed. Finally, the result showed a positive effect of biological and bio fertilizers on the most studied treatments.