Cultivation Techniques of Bupleurum chinense Interplanted with Wheat in Qiqihar Area of Heilongjiang Province
Abstract:Objective:To provide technical references for cultivation of Bupleurum chinense in cold north area of China,through experiments and analyses on the key cultivation techniques of interplanting with wheat,yield and quality of medicinal material that was produced in Qiqihar area of Heilongjiang Province. Methods:Utilizing local agricultural production measures,suitable techniques which may be used for B. chinense-wheat interplanting were explored. The length and diameter of roots were measured and the numbers of branch roots were counted for the randomly selected samples. The yields of samples collected from plots were tested. The contents of saikosaponin a,c,d were assayed by HPLC. Results:The key techniques,including sowing time,sowing seed amount,planting mode,fertilization,topping,prevention and control of weed damage,and harvesting and primary processing of B. chinense,were established. The average dry root yield per mu was up to 50 kg. The content of saikosaponin met the requirement of the Chinese Pharmacopoeia. Conclusion:This cultivation technique system can be applied to the production of B. chinense in cold north of China.