Abstract:

A total of 315 cutler flue-cured tobacco samples were collected from main tobacco-growing areas in Hunan, and their total nitrogen contents were determined by continuous flow method to study the regional characteristics of the total nitrogen content. The results showed that the means of total nitrogen contents in cutter flue-cured tobacco leaf were 1.93%. The samples with total nitrogen content under 1.5% accounted for 3.40% of the total. The total nitrogen content in cutler tobacco leaf was moderate in Hunan. There was not statistical difference in 3 main cultivars and in 3 ecological areas. The spatial variance trend of the total nitrogen contents decreased gradually from the high total nitrogen content areas of east to west in Hunan.