Effects of organic nano-fertilizer and humic acid on biochemical characteristics and some essential oil of domask-rose (Rosa damascena Mill.)

Balanced nutrition is one of the most important factors in improving the quality and performance of medicinal plants such as Domask-Rose (Rosa damascena Mill.). In recent years, the approach to removing or reducing the use of chemical fertilizers with the aim of replacing organic fertilizers and the application of new products has been widely considered. For this purpose, a factorial experiment was conducted in a randomized complete block design with two factors of organic nano-fertilizer (levels of zero, 2, 3 and 4 cc in one liter of water) and humic acid (levels of zero, 1, 2 and 3 cc in one liter of water) in three replications. The results showed that the highest amount of nitrogen was obtained in organic nano-fertilizer treatments of 4 and 3 per thousand, and the highest amount of phosphorus and potassium was obtained in organic nano-fertilizer of 4 per thousand. The highest amount of anthocyanin (62.63 μg / g) was obtained in organic nano-fertilizer of 3 per 1000, and the highest amount of carotenoids (range from 0.44 to 0.35 mg / g) was obtained in humic acid treatments without nano-fertilizer and with nano-fertilizer of 2, 4 and 3 per thousand. The 2-phenyl ethanol, citronellol, geraniol and alpha-pinene compounds were the highest essential oil components. The highest amount of 2-phenyl ethanol was obtained in the treatment of organic nano-fertilizer and humic acid at concentrations of 3 per thousand. The highest amount of citronellol, alpha-pinene and the least amount of 2-pheny lethanol were observed in the treatment of organic nano-fertilizer with 4 per thousand and humic acid 3 per thousand. The lowest amount of citronellol and alpha-pinene, and the highest amount of geraniol were obtained in organic nano-fertilizer 2 per thousand with humic acid 2 and 1 per thousand. According to the findings of this research, organic nano-fertilizer and humic acid treatments showed a positive effect on the concentration of mineral elements and essential oil components.