Abstract: :This experiment was carried out with the single factor randomized block design ,which studied the effect of N,P, K on root yield,nutrient absorption and baicalin content of Scutellaria baicaleusis by field plot experiment. The amount of N,P₂O₅,K₂o in 0一225,0一270,0一270 kg/ha,the root yield of Scutellaraa baacaleusas increased with increasing application amount of nitrogen,phosphorus and potassium fertilizer. The nitrogen fertilization had the most significant effect on increasing yields of Scutellaraa baacaleusas,and compared with no nitrogen treatment, the yield of treatment with nitrogen increased 73.61%一105.10%.when the N,P₂O₅,K₂o application were respectively 225,270,270 kg/ha,root yield of Scutellaraa baacaleusas were 7158.00一7403.55 kg /ha, baicalin content were 9. 92%一11 .24% and exceeded the regulation standards of 9. 0% of Chinese pharmacopoeia.

Key words: Scutellaraa baacaleusas, N,P,K fertilizer, Yield, N,P,K absorption, Baicalin

CLC Number: 

• S143