Environmental factors such as mineral nutrition as well as plant ontogeny are the major determinants of the quantity and quality of essential oil (EO) in medicinal and herbal plants. The aim of the present study was to assess the effect of nitrogen and plant development phases on the yield of fresh mass and the yield of essential oil, content and chemical composition of essential oil from summer savory cv. Saturn cultivated for industrial use. The two-factor experiment was carried out in a random-block design with five replications. The nitrogen dose (0; 4; 8; 12; 16 g N m⁻²) and the plant development phase (the beginning of flowering and full flowering) were the experimental factors. There was a significant effect of the nitrogen dose and plant development phase on the essential oil content of the summer savory. The content of essential oil in the summer savory herb was in the range of 2.52–5.89%. The essential oil was shown to contain four dominant components, i.e. carvacrol, gamma-terpinene, alpha-terpinene, and para-cymene. The highest carvacrol content was noted for the lowest nitrogen dose in the phase of full flowering of plants. Additionally, the highest parameters of the summer savory essential oil were obtained from plants harvested in the initial flowering stage.

矿物质营养以及植物个体发育等环境因素是决定药用和草药植物精油（EO）数量和质量的主要因素。本研究的目的是评估氮和植物发育阶段对新鲜咸味葡萄的新鲜质量和精油产量，精油含量和化学组成的影响。土星种植用于工业用途。两因素实验是在具有五个重复的随机区组设计中进行的。氮剂量（0; 4; 8; 12; 16 g N m ^-2）和植物发育阶段（开花开始和完全开花）是实验因素。氮素剂量和植物发育阶段对夏季咸味精油含量有显着影响。夏季咸味草药中的精油含量在2.52-5.89％的范围内。已显示该精油包含四种主要成分，即香芹酚，γ-萜品烯，α-萜品烯和对伞花烯。在植物完全开花阶段，最低的氮素剂量表明香芹酚含量最高。此外，夏季香精油的最高参数是从开花初期收获的植物中获得的。