Abstract:

In order to solve the problem that amount of aroma is lack and aroma quality is bad of flue-cured tobacco, improve the flue-cured tobacco quality of Shaoyang, the flue-cured tobacco cultivar ‘K326’ was selected to study the effects of different rapeseed fertilizer application rates on flue-cured tobacco leaf quality and economic effectiveness. The results indicated that rapeseed fertilizer application with 375 kg/hm2, using the current fertilizer application measure implemented in Shaoyang, effectively promoted the leaf growth and improved the coherence of chemical components in tobacco leaf. It also reduced the nicotine content, increased the oil and chromaticity, modified the organization structure, and improved the smoking quality grade of tobacco leaf. Generally，the yield was increased by about 30-150 kg/hm2 and the value of output was improved by 2250-3000 yuan/hm2.