The Companied Technique Research & Demonstration Of The High Yield, High Quality And High Efficiency Cultivation Of Chinese Angelica

Applying the design of circumgyrated and assembled with contrast method and two-time regress,the paper analyses the primary and secondary relationship between the main factors of the cultivation(density,the dosage of nitrogen,phosphorus,potassium)affecting Chinese angelica's high output,high quality,high efficiency and the colony productive properties of the yield and benefit,and the effect of internal quality.Obtain as follows mainly as a result:(1)In chilly and humid areas,under the cultivation,the yield of the fresh Chinese angelica's is higher than 9750 kg/hm²;The quality attains good quality standard the percent of the volatile oil is higher than 1.0%,and the amylose is higher than 15.0%,lixiviate of 70%the ethanol is higher than 59%,the asafetida acid is higher than 0.1%.The agriculture set of the net income which is beyond 12000 Yuan per hectare should be:the density is between 112200～132900 stubs/hm²,the dosage of N:207.15～309.45kg/hm²,and P₂O₅: 93.45～133.95 kg/hm²,and K₂O:46.65～60.00kg/hm².Key measures:Density is 124425 stubs/hm²,the dosage of N:253.2 kg/hm²,and P₂O₅:112.2 kg/hm²,K₂O:52.2 kg/hm²,and the ratio of the N:P₂O_s:K₂O is roughly equal to 1:0.44:0.21.(2)Under the local ecological conditions of farmland,the optimal density of the high output is 1.092 million stubs/hm²,and the density of 1.05 million stubs/hm² has the optimal economic efficiency.(3)Through the validation of example production and the calculation of the mathematic model,Summarize and put forward high yield,high quality and high efficiency in the balanced fertilization key measures of Chinese angelica.Net N per hectare:255kg, P₂O₅:135kg,KO₂:60kg the output is 55.6%higher than the compared one.The germinate of first-rate Chinese angelica is improved about 9.2%,the caput germinate of Chinese angelica improved about 6.1%,the net income is 9791.1Yuan/hm².The rate of the stub without diseases is improved 2.7%.Has the stable economic effect of increasing production in the cultivation of Chinese angelica.This agriculture technique set has the stable economic effect of increasing production in the cultivation of Chinese angelica,and can be popularized in the same natural condition areas.