The invention discloses a method for improving the curing quality of tender mature-
delay tobacco leaves. According to the method, the
tobacco leaf harvesting standards include that tobacco leaves are mature to be yellowing in green and have yellow leaf tips, the
smoke filling density in a curing room is 38-40 kg / m<3> and the curing room is filled with
smoke accounting for 85-90% of the volume. Through the three-stage baking process, the method specifically includes the yellowing stage, the color fixing stage and the
vein drying stage till main veins of tobacco leaves in the whole curing room are cured to be dry. In the later period of the yellowing stage, the
wind speed among tobacco leaves in the curing room reaches 0.3-0.4 m / s in the high
wind speed layer, reaches 0.25-0.35 m / s in the medium
wind speed layer and reaches 0.2-0.3 m / s in the low wind speed layer. The curing method is particularly suitable for lower tobacco leaves formed under the conditions of high water and
fertilizer, high densities, inharmonious nutrients and too much
nitrogen, leaves are fat, high in
water content, high in
moisture holding capacity and little in dry substance,
nitrogen compounds are mainly contained, and the problems that tobacco leaves have no maturity
delay capacity in the field and can get rotted before being mature are solved. The method is easy to operate, the curing quality of tender mature-
delay tobacco leaves can be improved, loss can be reduced, and income of tobacco farmers is increased.