不同产地滇重楼根茎、须根及根际土壤中氮磷钾元素含量变化特征

李卓蔚; 谷文超; 许凌峰; 王骞; 郭冬琴; 周游; 周浓

doi:10.19336/j.cnki.trtb.2021041501

不同产地滇重楼根茎、须根及根际土壤中氮磷钾元素含量变化特征

Characteristics of Nitrogen, Phosphorus and Potassium Contents in the Rhizome, Fibrous Root and Rhizospheric Soil of Paris polyphylla var. yunnanensis from Different Regions

摘要

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。

Abstract:
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.

HTML全文

参考文献(28)

施引文献

资源附件(0)