EFFECT OF ORGANIC-INORGANIC N SOURCES ON GROWTH, NPK NUTRIENTS AND SECONDARY METABOLITES OF PANAX NOTOGINSENG (BURK.) F. H. CHEN

Emirates Journal of Food and Agriculture

Duanwei Zhu¹  Lanping Guo¹  Dahui Liu²  Xiaohong Ou³  Ye Yang⁴ 

[1] 1 College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, China,;College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China;College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, China;Key Laboratory of Panax Notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China

关键词: Panax notoginseng;    organic and inorganic Nc;    growth;    nutrients uptake;    secondary metabolites;   

DOI  :  10.9755/ejfa.2016-10-1528

学科分类：农业科学（综合）

来源: United Arab Emirates University, Faculty of Food and Agriculture

【 摘 要 】

The effects of organic and inorganic N combined application on P.notoginseng cultivation are poorly known. For this reason, we have carried out a pot culture experiment in 2010. The treatments respectively were (1) control (no N input, CK), (2) organic N (ON), (3) half organic N and half inorganic N (1/2ON+ 1/2IN), (4) inorganic N (IN). Plant growth, NPK and secondary metabolites concentration were assayed. Results showed that compared to CK, ON increased plant height, N, P concentration and accumulation and total saponins concentration, but reduce total flavonoids concentration. IN increased shoot and root biomass, N concentration and accumulation, K accumulation, but reduce total flavonoids and saponins concentration. 1/2ON+ 1/2IN had the highest hair root length, root diameter, biomass, N concentration and accumulation, K concentration in roots, total saponins concentration, but had the lowest K concentration in shoots, total flavonoids concentration in shoots and roots. Correlation analysis showed total flavonoids concentration was negative correlated with N concentration and accumulation, K concentration in shoots, but was positive correlated K concentration in roots. Total saponins concentration was negative correlated with K concentration in shoots whereas positive in roots, and was negative correlated with total flavonoids concentration. Totally, organic and inorganic N combined application with the ratio of 50/50 is the best way for growth and saponins of P.notoginseng.

【 授权许可】

CC BY