Effects of application of N, P, and K on traits and active ingredients of Chrysanthemum indicum / 中草药

ABSTRACT

Objective To explore the effect of N, P, and K fertilizers on the growth of Chrysanthemum indicum and accumulation of active components. Methods This research used different levels and ratios of nitrogen, phosphorus and potassium through orthogonal experiment; The flower of C. indicum traits were observed in the harvest period; The content of the dried flower active ingredient was measured using HPLC. Results The result showed the noticeable differences among the 14 groups in the number of capitulum, the diameter of capitulum and tubiform floret, yield per plant, total flavonoid content and linarin content as well as fertilizer efficiency of different mineral elements. Appropriate increase of N, K concentration and low P concentration was beneficial to the growth and development of C. indicum and the output of dried flowers. Low concentration of N, P, K promoted the cotent of linarin and total flavonoids; The content of linarin treated with different combination all accorded with the standard of Chinese Phamaeopoeia. Conclusion Compared comprehensively, it was concluded that the optimal proportion of nitrogen, phosphorus and potassium in the growth of chrysanthemum inflorescence150.13. Flavonoid and linarin content reached the highest point without fertilization.