Effect of organic-inorganic N sources on growth, NPK nutrients and secondary metabolites of Panax Notoginseng (Burk.) F. H. Chen -
Effect of organic-inorganic N sources on growth, NPK nutrients and secondary metabolites of Panax Notoginseng (Burk.) F. H. Chen -
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DOI：
10.9755/ejfa.2016-10-1528
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发表时间：
2017-11
影响因子：
1.1
通讯作者：
Xiaohong Ou;Ye Yang;Lanping Guo;Duanwei Zhu;Dahui Liu
中科院分区：
文献类型：
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作者：
Xiaohong Ou;Ye Yang;Lanping Guo;Duanwei Zhu;Dahui Liu
有机氮和无机氮配施对三七栽培的影响鲜为人知。为此，我们在2010年进行了盆栽试验。处理分别为(1)对照(CK)，(2)有机氮(ON)，(3)半有机氮和半无机氮(1/2ON+1/2IN)，(4)无机氮(IN)。测定植株生长、NPK和次生代谢物浓度。结果表明，与对照相比，在株高、N、P浓度和积累量及总皂苷浓度上均有所增加，但总黄酮浓度有所降低。在增加地上部和根部生物量的同时，N的浓度和积累量增加，K的积累量增加，但总黄酮和皂苷的浓度降低。1/2ON+1/2IN的毛根长、根径、生物量、氮素浓度和积累量、根部K浓度、总皂甙浓度最高，而地上部K浓度、地上部和根部总黄酮浓度最低。相关分析表明，总黄酮浓度与地上部N浓度及积累量、K浓度呈负相关，与根中K浓度呈正相关。总皂甙含量与地上部K含量呈负相关，与根中K含量呈正相关，与总黄酮含量呈负相关。总体而言，有机和无机氮以50/50的比例配施对三七的生长和皂苷类物质的影响最好。
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.