The effect of different color fixing durations during curing on tobacco leaf quality was studied with flue-cured tobacco variety Yunyan 87 as material. The results showed that prolonging color fixing durations 6 h for upper and central leaves resulted in improvement of the combustibility and filling power,significant decreasing of chloride content and signifi-cant increasing of potassium content,at the same time,their ratios of sugar alkali to alkali,nitrogen to potassium and potas-sium to chloride turned more appropriate,and physi...
