YAO Jia, YIN Hai-bo, ZHAO Rong, et al. Absorption Law of Inorganic Elements and Contents of Total Saponins in Dioscoreae Nipponicae Rhizoma Based on Continuous Cropping Obstacles Conditions[J]. Chinese journal of experimental traditional medical formulae, 2015, 21(24): 61-64.
YAO Jia, YIN Hai-bo, ZHAO Rong, et al. Absorption Law of Inorganic Elements and Contents of Total Saponins in Dioscoreae Nipponicae Rhizoma Based on Continuous Cropping Obstacles Conditions[J]. Chinese journal of experimental traditional medical formulae, 2015, 21(24): 61-64. DOI: 10.13422/j.cnki.syfjx.2015240061.
Objective: To investigate effect of different continuous cropping conditions on inorganic elements absorption and content change of total saponins in Dioscoreae Nipponicae Rhizoma. Method: Seventeen kinds of inorganic elements in Dioscoreae Nipponicae Rhizoma and rhizosphere soil by inductively coupled plasma mass spectrometry(ICP-MS).Determination of total saponins in Dioscoreae Nipponicae Rhizoma was ultraviolet spectrophotometry.Data were analyzed by SPSS 17.0 software. Result: Contents of inorganic elements in herbs of Dioscoreae Nipponicae Rhizoma which was in rotation 2
3
4 years significantly correlated with soil.Continuous cropping stubble 1 years began to no significant correlation
and the content of total saponins showed downward trends. Conclusion: The content of total saponins in Dioscoreae Nipponicae Rhizoma is declining with increasing of continuous cropping time.These results show that continuous cropping affects the content of total saponins
but its content change has no obvious correlation with inorganic elements
which indicates that change of inorganic elements is just a factor for continuous cropping.