Investigation of Vermicompost Fertilizer Effect on Chemical Composition of Essential Oil of Ziziphora Tenuior in Weather Conditions of Kahnoojin Iran

Recent tendencies in utilizing organic products have grown owing to the negative effects of using the chemical fertilizers. Meanwhile, animal manures have a devastating impact on the soil and the excessive uses of them can also reduce the agricultural soil quality. So a normal fertilizer produced with distinctive and certain types of properties that this manure is produced using the earthworms (from Eisenia Foetida species). Meanwhile Ziziphora tenuior plants are very fragrant and have great food and pharmaceutical applications. In this study, we tried to extract it from the plant after a period of fertilization by vermicompost and compare it with essential oils of plant compounds in vermicompost without fertilization to evaluate changes of vermicompost upon the secondary compounds. For this, we used of the essential oil by hydro distillation by Clevenger method and essential oil with a yield of 1/1% (g/g) which was obtained by GC-MS were analyzed to determine the composition of the essential oils. The present of compounds in essential oils Ziziphora tenuior shows 21 effective combinations that have the significant phenolic compounds. Also, we could cite the pulegone compounds with 69.9% before fertilization, and 81.3% after fertilization, limonene with 4.8% before fertilization and 6.7% after fertilization and cyclohexane with 4.1% before the fertilization and 1.3% after fertilization. Given the abundant phenolic compound and oxygenated terpenes in the essential oil of this plant (Ziziphora tenuior), can be used as a natural source for organic and natural use of this material normally that usage of vermicompost fertilizersignificantly improve the quality of essential oils.