International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Volume 8 Issue 2
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Isolation and Characterization of Indigenous Potash Mobilizing Bacteria from Coastal Salt-Affected Soils of Gir Somnath, Gujarat, India, and Their Potential for Biofertilizer Application

Author(s) Prof. Dr. Nikul B Chavada, Ms. Dhvani M Vekariya
Country India
Abstract Salt-affected coastal soils often suffer from nutrient imbalance and reduced availability of essential macronutrients such as potassium, which adversely affects soil fertility and crop productivity. The present study aimed to isolate, characterize, and evaluate indigenous potash mobilizing bacteria (KMB) from coastal saline soils of Gir Somnath district, Gujarat, India. Soil samples were collected from four coastal villages—Kaj, Sarakhadi, Chhara, and Mul-Dwarka—and subjected to serial dilution and plating on Aleksandrow agar medium. A total of 20 morphologically distinct bacterial isolates were successfully obtained, indicating the presence of diverse and viable microbial populations adapted to saline conditions. Functional screening revealed that all isolates exhibited potassium mobilizing activity, demonstrating their ability to solubilize insoluble potassium compounds. Morphological characterization showed variation in colony size, pigmentation, texture, and elevation, reflecting microbial diversity. Gram staining analysis revealed that all isolates were Gram-positive, suggesting dominance of stress-tolerant bacterial groups, possibly belonging to Bacillus and related genera. The ability of these isolates to grow efficiently on potassium-containing selective media confirms their functional role in nutrient cycling. These findings highlight the ecological significance and biofertilizer potential of native potash mobilizing bacteria for improving soil fertility and promoting sustainable agriculture in coastal and salt-affected regions.
Keywords Potash mobilizing bacteria; Coastal saline soil; Biofertilizer; Aleksandrow medium; Potassium solubilization; Soil microbiology; Sustainable agriculture
Field Biology > Agriculture / Botany
Published In Volume 8, Issue 2, March-April 2026
Published On 2026-03-26
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E-ISSN 2582-2160
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