In Bulgaria there are centuries-old traditions in the cultivation of oil rose (Rosa damascena Mill). Bulgarian rose oil and other products made from the colors of rose oil are well known and sought after in international markets. Since the beginning of the 19th century are exported to countries in Europe, USA, Australia, Japan, the Middle East, etc. Oil rose (Rosa damascena Mill) is grown for their flowers, which contain essential oils, producing rose oil. Rose-growing is a traditional industry in the economy of Bulgaria and the products produced by the pink color, are widely used in medicine, cosmetics, food. The aim of this study was to determine the influence of fertilizer "Siapton" on the productivity of oil rose (Rosa damascena Mill) and qualitative indicators of the received rose oil. The experiment was carried out in an experimental field at IREMK, Kazanlak in the period 2015-2017. The object of the study is the pink plantation of the "Svezhen" variety grown on leached forest soils. The bio fertilizer Siapton is a versatile organic fertilizer and biostimulant for leaf and soil applications containing amino acids and peptides. Ingredients: Total nitrogen 9.1%; organic nitrogen 8.7%; Ammonium nitrogen 0.4%; Organic carbon 25%; Total amino acids (of animal origin) 54.4%; Free amino acids 10.0%; Dry matter content 63%. For implementation of the objective study of the impact of liquid fertilizer on the productivity of the culture and quality of essential oil have been conducted biometric measurements and phenological observations during the growing season. And in the three years of the study pink color is retracted manually in phenophase blooms. The yield of rose oil is accounted for by micro distillation apparatus - Clevinger.For the purpose of the study, experiments were conducted under irrigation and irrigation conditions. Applying fertilizer Siapton leads to an increase in the mass and diameter of the color of oil rose. After treatment with the organic fertilizer Siapton yield of the pink color of the oil rose (Rosa damascena Mill) increases. Treatment at a dose of 350 ml/da under irrigated conditions ensures an increase to 21.57%, while under irrigation - 21.20%. With natural moisture supply, the highest yields of rose oil were obtained by treatment with biotor at a dose of 250-350 ml/da. At irrigation, the yields were 28.7% higher after treatment with 350 ml/da.

oil rose, irrigation regime, fertilize, yield

biology

Presentation: poster