Effects of Different Nitrogen Rates on the Flavor Components and Sensory Evaluation of Oriental Tobacco Leaves

A Field experiment was conducted to studied the effects of different nitrogen rates on the flavor components and sensory evaluation under common practice using a oriental tobacco cultivar yunxiang basma 1 in Panzhihua. The results showed that, with inorganic nitrogen fertilizer rates increased, organic acids in tobaco leaves decreased, but cembranoids, carotenoids and total flavor components increased, and the highest contents were observed with nitrogen rate of 82.5 kg/ha. Labdanums and degradation product contents were the highest with nitrogen rate of 67.5 kg/ha. Total score of sensory evaluation increased with nitrogen rate and the highest when nitrogen rate was 82.5 kg/ha.