Physico-chemical Characteristics of Rhizospheric Soils of Some Important Medicinal Plants Found in North East India
2023; Volume: 11; Issue: 3 Linguagem: Inglês
10.13189/azb.2023.110305
ISSN2331-5091
AutoresChumi Khanikar, S. Sureshkumar Singh, Sasmita Bhuyan,
Tópico(s)Polysaccharides Composition and Applications
ResumoThe present study was conducted to investigate the soil physical and chemical properties in the rhizosphere regions of four medicinal plants Asparagus racemosus, Tinospora sinensis, Vitex negundo and Clerodendrum colebrookianum naturally occurring in the upper flood plains of Lakhimpur district in Assam and one medicinal plant, Coptis teeta from the high altitude regions of the Lower Dibang Valley district in Arunachal Pradesh.Representative soil samples, a total of 27 (9x3) random soil samples were collected from different sampling sites and laboratory experiments were conducted with standard methodologies.Sand content was highest (86%) in the rhizosphere soil of C. teeta followed by V. negundo (76%) and T. sinensis (75%).Organic carbon (SOC) in the rhizosphere of selected medicinal plants ranges from 1.0% to 6.3%.Total nitrogen (TN) in the rhizospheric soil of selected medicinal plants ranges from 0.01 to 0.34%.Comparatively, P was higher in summer seasons in all the rhizospheric soils as compared to the winter seasons in the present study.Compared to the other selected plants, the soil of C. teeta possesses lower Ca and Mg.Overall, the study reveals that the soil of the rhizosphere of selected medicinal plants is rich in nutrients and differs between the study sites.
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