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Effects of Different Rotation Patterns and Fertilization Treatments on Chemical Components and Economic Properties of Tobacco in Northeast China

YIN Chun-qin1,YUAN Ye2,WANG Hong-yan3*,SUN Qing-bin1(1.Environmental Science and Engineering College,Huangshi Institute of Technology,Huangshi 435003,China;2.Institute of Tobacco Science of Heilongjiang Province,Mudanjiang 157000,China;3.College of Resources and Environment Science,Northeast Agricultural University,Harbin 150030,China)  
Effects of two selected rotation patterns and different fertilization treatments on chemical components and economy properties of tobacco in northeast were analyzed.The results showed that the ratios of kalium oxide and chlorine were ranged from 5.2 to 43.0,the combustibility of tobacco leaves was better,and the ratio of kalium oxide and chlorine could be enhanced by supplying the suitable quantity of phosphate fertilizer(P),potassium fertilizer(K) and boric fertilizer(B) in soybean stubble treatments.Both the ratio of nitrogen and total nicotine and the ratio of total sugar and total nicotine were not diffe-rent significantly.High quality leaves containing the suitable ratios of total sugar and protein could be obtained by augmenting the suitable B fertilizer in 2005.The economy properties of tobacco leaves were enhanced remarkably in 2005 comparing with 2004.The production value in wheat stubble treatments was more than that in soybean stubble treatments.
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