The weight of tobacco roots applying chemical fertilizer(CF) was obviously greater than that applying rapeseed cake fertilizer(RC) or combining application of chemical fertilizer and rapeseed cake fertilizer(CC) after the lower leaves maturity,but before this stage there was no distinct difference among 3 treatments.

Applying organic manure especially rapeseed cake fertilizer has close relation with the composing of tobacco fragrance quality and fragrance quantity.

The major components of the rap oil seedcakes are protein,nitrogen-free lixivium,coarse fiber,crude fats,and ash content.

Accelerated solvent extraction(ASE)-ion chromatography with conductivity detection for determination of phytic acid in rapeseed.;