不同施氮量下云烟85不同成熟度烟叶的烘烤特性

利用大田试验,设置4个氮(N)水平和3个烟叶成熟度,对烟叶不同部位的烘烤特性进行了研究,结果表明,N60或N150处理的各项烘烤特性指标均以过熟烟叶相对较好,而N90或N120的处理,均以适熟烟叶相对较好.同一成熟度或同一氮水平,以中、上部烟叶的评吸总分高,其中中部烟叶表现较好,评吸总分较高.因此,对于较低或较高有效氮含量的土壤,可以选择相对过熟或稍过熟的烟叶进行适时采烤,而对于适中的土壤氮含量,需适熟采烤.

Baking Characters of Flue-cured Tobacco Leaf with Different Degree of Maturity under Different Nitrogen Application Rates Conditions

In field experiment,four nitrogen(N) levels and three kinds of degree of maturity were designed to study the baking characters of different part leaf,the results showed that the indexes of baking characters of overripe leaf was better than that of unripe or ripe leaf in N4 or N10 treatment,however,the characteristic of complete ripe leaf was best among the kinds of degree of leaf maturity in N6 or N8 treatment.For the same degree of leaf maturity or nitrogen level,the mark of panel test of middle or upper leaf of tobacco was high,in which,middle leaf of tobacco showed better results.So,it had better harvesting overripe leaf to cure where available nitrogen content of soil is low or high,and harvesting ripe leaf in soil which available nitrogen content is optimum.