Abstract:

There was a markedly plus linear relationship between amounts of chlorine applied and chlorine content or accumulation of flue-cured tobacco in growth period. There was a markedly plus linear relationship between amounts of chlorine applied and total sugar content and reductive sugar content of X2F and C3F, total nitrogen content or total chlorine content of flue-cured tobacco leaves; and there was a markedly minus linear relationship between amounts of chlorine applied and total potassium content. Bases on the relationship between amounts of chlorine applied and chlorine content of different parts in final harvest, or different grade of flue-cured tobacco leaves, there was safe for flue-cured tobacco leaves, and assuring for chlorine content of flue-cured tobacco leaves more than 0.3% when tobacco field was applied chlorine fertilizer with 24 kg/hm2.