Influence Of Rapeseed Cake Fertilizer To Aroma Components Of The Flue-cured Tobacco During Maturity

Applying organic manure especially rapeseed cake fertilizer has close relation with the composing of tobacco fragrance quality and fragrance quantity. The quality of tobacco and its products are determined by tobacco's internal chemical compounds. The content and composing proportion influence directly cigarette's fragrance style ,quality and security. This research used tobacco verities K326 and Yunyan 87 (the 11th to the 12th leaf) as experiment materials. After the process of applying rapeseed cake fertilizer, which sampled according to the four mature periods after topping ,the modernized analytic technology of liquid chromatography, gas chromatography, GC-MS and so on were utilized to determine separately the contents of chlorophyll and carotenoids in fresh leaves ; the indicators of organic acid, total nitngen, amino acid, nicotinic, reducing sugar and non-reducing sugar in sample; the contents of chromoplast pigment degradation products and volatile aromatic materials in flue-cured tobacco leaves. The correlation between the two factors of rapeseed cake fertilizer ,the maturity and the main fragrance precursors , the main neutrophil volatile aromatic materials was examined ,which laid a theory foundation to the research of flue-cured tobacco's technology of adding fragrance and opened out the functioning mechanism of organic mater's acceleration to the improvement of tobacco fragrance quality and the experiment basis of timely collection. The main results were indicated as follows:1. It is probed into the influence of rational application of rapeseed fertilizer and inorganic fertilizers to fragrance precursors. The result indicates that the effect of rational application of rapeseed fertilizer and inorganic fertilizers to flue-cured tobacco's internal chemical compounds and quality is superior to applying pure inorganic fertilizers only. Rational application of rapeseed cake fertilizer and inorganic fertilizers can slow down chromoplast pigments' degradability, elevate the contents of organic acid and soluble total sugar. Rapeseed cake fertilizer affect...