Studies On The Effects Of The Rifired Organic Fertilizer On The Agronomic Traits And Output Value Of The Flued-cured Tobacco

This experiment was carried out in Songwu village, Yiyang county,Luoyang city during the time from March to October,2011. The tobacco variety called Zhongyan100was used, the single-factor randomized block design was adopted. The effects of four treatments which were the rifined organic fertilizer, chemical fertilizers with cake fertilizers, chemical fertilizer and no fertilizers as CK on agronomic traits, physiological traits, chemical compositions and aromatic components in flue-cured tobacco leaves were studied. The correlation between agronomic traits and economic traits, the correlation between chemical compositions and aromatic components were also analyzed. The results are as follows:Despite the maximum leaf length in vigorous growing stage of the single application of the rifined organic fertilizer was second only to the one of CK, plant height, stem circumference, maximum leaf width, maximum leaf length and the maximum leaf area in rosette stage, harvesting stage were higher than CK and significantly higher than the other two fertilizer treatments. The tobacco leaf chlorophyll SPAD value in the vigorous growing stage of the single application of the refined organic fertilizer was slightly higher than the other treatments and was a little lower than the other treatments when tobacco plants went into harvesting stage.The nicotine and chlorine content in the leaves of the upper part of plants of the single application of the refined organic fertilizer were the highest, the total sugar and reducing sugar content were lower than those of CK but higher than the other two fertilizer treatment. The Potassium content was higher than CKbut lower than it of the other two treatments. The chlorine, potassium, total sugar and reducing sugar content in the leaves of the middle part of plants of the refined organic fertilizer were the highest, however it had the lowest nicotine content. The potassium content in the leaves of the lower part of plants was the highest. Its nicotine content was only higher than in of chemical fertilizer with cake fertilizer treatment. Its reducing sugar content was only higher than it of CK. Its total sugar content was second only to it of chemical fertilizer with cake fertilizer treatment. The single appplication of the refined organic fertilizer had an outstanding performance in increasing aroamtic components. For the leaves of the upper part of plants, its browning reaction products were secong only to these of the chemical fertilizer and cake fertilaizer treatment. Its carotenoid, phenylalanine, cembratriendid compounds, neophytadiene content were the highest; For the leaves of the middle part of plants, its browning reaction products were only lower that these of the chemical fertilizer and cake fertilaizer treatment. Its other aromatic component content was the highest; For the leaves of the lower part of plants, all the aromatic component content was the highest.The single appplication of the refined organic fertilizer treatment could improve economic benefits of tobacco. It was higher than CK in the yield, yield value, the average price, high-quality tobacco leaf proportion. It was also higher than the other fertilizer treatments in those economic traits.The taste of the cigarettes which were made from the pure flue-cured tobacco leaves became mild, comfortable due to the The single appplication of the refined organic fertilizer treatment. It had the best taste.The analysis of the correlation between the agronomic traits of the harvesting stage and economic traits showed that tobacco plant height had significant positive correlation with the yield and yield value. Maximum leaf length and yield had a very significant positive correlation; maximum leaf width had significant positive correlation with the yield value, the average price, top grade tobacco proportion; maximum leaf area had significant positive correlation with yield and yield value.The analysis of the correlation between chemical compositions and aromatic components showed that despite the negative correlation between the nicotine content and neophytadiene in the leaves of the middle part of plants, the chemical composition and aromatic components did not have signicant correlation.