IntroductionMedicinal and aromatic plants are effective with their active ingredients (Kamel, 2000). Several essential oils of such plants have antimicrobial, carminative, chlorotic, sedative, diuretic, and antispasmodic impacts in various diseases (Maksimovic et al., 2005). Peppermint cultivars contain menthone, isomenthone, carvone, and pulegone and all these peppermint essential oils have antimicrobial characteristics. They are also used as active ingredients in toothpastes, food stuffs, soaps, creams, lotions, and perfumes (Sivropoulou et al., 1995;Baydar, 2013).Nitrogen treatments are commonly used worldwide in plant culture to improve the yields (Ladha et al., 2005). Nitrogenous and phosphorus fertilizers may also improve essential oil yield and quality of medicinal and aromatic plants (