摘要
【目的】探索不同产地滇重楼植物体不同部位和根际土壤中氮(N)磷(P)钾(K)元素含量分布规律,区分不同产地滇重楼植物体与根际土壤N、P、K营养元素含量差异性,为滇重楼栽培种植提供理论依据。【方法】采用常规方法测定滇重楼根茎、须根以及根际土壤中的N、P、K含量。【结果】不同产地滇重楼须根中N、P、K含量分别在0.554~2.057 mg g^(−1)、0.616~5.498 mg g^(−1)、1.250~14.080 mg g^(−1)之间,根茎中N、P、K含量分别在0.137~1.610 mg g^(−1)、0.561~2.261 mg g^(−1)、0.768~6.496 mg g^(−1)之间,根际土壤中N、P、K含量分别在0.071~0.711 mg g^(−1)、3.308~23.557 mg g^(−1)、1.991~20.795 mg g^(−1)之间;须根对N、P、K的富集系数分别在1.183~22.471、0.049~0.884、0.207~2.325之间,根茎对N、P、K的富集系数分别在0.314~13.021、0.041~0.570、0.056~1.493之间;野生和栽培滇重楼植物体及根际土壤中N、P、K含量特征未有明显区分。【结论】不同产地滇重楼植物体中N、P、K含量大小均为K>P>N,根际土壤中N相对匮乏,P比较丰富;野生品根茎中N、K含量整体上高于栽培品,P含量则相反;栽培品须根中N、P、K含量整体上高于野生品;栽培品与野生品根际土壤中N、P、K含量大致相当;各产地滇重楼须根中的N、P、K含量都显著高于根茎。
[Objective]To explore the distribution law of nitrogen(N),phosphorus(P)and potassium(K)content in different parts of Paris polyphylla var.yunnanensis and rhizosphere soil in different producing areas,and to distinguish the differences of N,P and K contents among Paris polyphylla var.yunnanensis plant and rhizosphere soil in different producing areas,this study provided a theoretical basis for the cultivation of Paris polyphylla var.yunnanensis.[Method]The N,P and K contents in the rhizomes,fibrous roots and rhizospheric soil of P.polyphylla var.yunnanensis were determined via ultra high performance liquid chromatograph.[Result]The contents of N,P and K in the fibrous roots ranged from 0.554-2.057 mg g^(−1),0.616-5.498 mg g^(−1),1.250-14.080 mg g^(−1) respectively,in rhizome ranged from 0.137-1.610 mg g^(−1),0.561-2.261 mg g^(−1),0.768-6.496 mg g^(−1) respectively,in rhizospheric soil ranged from 0.071-0.711 mg g^(−1),3.308-23.557 mg g^(−1),1.991-20.795 mg g^(−1) respectively.The bioconcentration factors of fibrous root to N,P and K ranged from 1.183-22.471,0.049-0.884 and 0.207-2.325 respectively,rhizome to N,P and K ranged from 0.314-13.021,0.041-0.570 and 0.056-1.493 respectively.There was no obvious difference between wild and cultivated products in the contents of N,P and K.[Conclusion]The content order of N,P and K in the plant of P.polyphylla var.yunnanensis from different regions was K>P>N,the rhizospheric soil was relatively lack of N and rich in P.The contents of N and K in the rhizome of wild plant were generally higher than those of cultivated plant while the P content in the rhizome of wild plant was lower than that of cultivated plant.The contents of N,P and K in the fibrous root of cultivated plant were generally higher than those of wild plant.The contents of N,P and K in the rhizospheric soil of wild and cultivated plants were roughly the same.The content of N,P and K in the fibrous root of P.polyphylla var.yunnanensis from different regions were higher than those in rhizome.
作者
李卓蔚
谷文超
许凌峰
王骞
郭冬琴
周游
周浓
LI Zhuo-wei;GU Wen-chao;XU Ling-feng;WANG Qian;GUO Dong-qin;ZHOU You;ZHOU Nong(The Chongqing Engineering Lab.for Green Cultivation and Deep Processing of the Three GorgesReservoir Area's Medicinal Herbs,College of Food and Biological Engineering,Chongqing Three Gorges University,Chongqing 404120,China;School of Pharmacy,Dali University,Dali 671000,China)
出处
《土壤通报》
CAS
CSCD
北大核心
2022年第2期445-455,共11页
Chinese Journal of Soil Science
基金
重庆市自然科学基金项目资助(cstc2018jcyjAX0267)
重庆市教育委员会“成渝地区双城经济圈建设”科技创新项目专项项目(KJCX2020046)资助。
关键词
滇重楼
不同产地
营养元素
主成分分析
聚类分析
相关性分析
Paris polyphylla var.yunnanensis
Different producing areas
Nutrient element
Principal component analysis
Clustering analysis
Correlation analysis
作者简介
李卓蔚(1997−),女,四川达州人,在读硕士研究生,从事药用植物栽培与环境微生物研究。E-mail:lizhuowei0@126.com;通讯作者:周游,E-mail:zhyou0119@163.com;通讯作者:周浓,E-mail:erhaizn@126.com。
