Using varieties Yunyan87 and K326 as material,the experiment studied the impact of applying rapeseed,rapeseed cake residues and rapeseed water extracts with chemical fertilizer on tobacco neutral volatile aroma substances.The results indicate that different forms of rapeseed cake fertilizer can significantly increase the contents of volatile aroma substances in Yunyan87 and K326,the total volatile aroma substances in the different treatment of flue-cured tobacco from high to low are as follows: rapeseed residues applied〉 rapeseed cake applied...