摘要： 采用田间小区试验方法研究了施用氮、磷、钾肥对黄芩产量、氮磷钾养分吸收及黄芩苷含量的影响。结果表明:N、P₂O₅、K₂O用量分别在0~225,0~270,0~270kg⁄hm²时,黄芩根产量及黄芩苷含量随着氮、磷、钾肥用量的增加而增加。其中,氮肥对黄芩产量的增加效应最大,磷、钾肥次之;施用氮肥黄芩产量提高幅度可达73.61%~105.10%。在本试验条件下,当N、P₂O₅、K₂O用量分别为225,270,270kg⁄hm²时,N:P₂O₅:K_{2O的比例为1:1.2:1.2时,黄芩根产量达到7158.00~7403.55kg⁄hm²;黄芩苷为9.92%~11.24%,高于《中国药典》规定标准9.0%。}

关键词: 黄芩, 氮、磷、钾肥, 产量, 氮磷钾吸收, 黄芩苷

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

中图分类号: 

• S143