论文部分内容阅读
为提高烟叶安全性及其直接经济效益,以农业降焦为前提,进行了施氮量、留叶数两因素试验,结果表明:烟叶焦油量随留叶数的增加而减少,随施氮量的增加有增长趋势。
In order to improve the safety of tobacco leaf and its direct economic benefits, two factors experiment of nitrogen application and leaves retention were carried out on the premise of reducing the coke in agriculture. The results showed that the amount of tar decreased with the increase of leaf number, Increase in the growth trend.