成熟度是我国现行烤烟分级标准中的第一品质要素，代表着烟叶的质量水平。成熟度好的鲜烟容易烘烤，干烟各化学成分协调，商品等级和经济价值高；反之质次价低，甚至失去利用价值。烟叶适时采收时期应为烟叶充分成熟后，工艺过熟期前。但是生产中，烟农对成熟度把握不准，... Maturity is the first quality factor in China’s current flue-cured tobacco grading standards, representing the quality of tobacco leaves. Good maturity of the smoke easy to roast, dry chemical composition of the coordination of cigarettes, product quality and high economic value; the other the quality of low prices, and even lost the value of use. Timely harvest of tobacco leaves should be fully mature tobacco, the process before maturity. But in production, tobacco farmers are not sure about maturity, ...