Abstract:

Field experiments and chemical analysis were carried out to study the effects of different amount of applied nitrogen on the content of the acid and alkali aroma substances of flue-cured tobacco leaves. The results showed that, the totals of 18 kinds of volatile acid aroma components and the totals of 11 kinds of non-volatile acid aroma components were obviously increased, and there wasn’t regularly change for totals of fifteen alkaline aroma components, as the increasing of the amount of applied nitrogen. The relationship between nitrogen amount and 16 kinds of acid aroma components, and the total contents of different kinds of volatile acid or non-volatile acid aroma substance could be simulated by dualistic and quadratic equation respectively with highly significant relation. There were 4 kinds of alkaline aroma components had regularly changes as the increasing of the amount of applied nitrogen. It is possible to improve the flavor quality of tobacco leaves through regulating the measures of nitrogenous fertilizer.