Isolation of Plant Growth-Promoting Rhizobacteria and Its Correlation with Soil Physio-Chemical Properties

Life Science (Microbiology)

PGPR belongs to the rhizospheric bacterial species that promote plant growth through various mechanisms, e.g., phosphate solubilizing, nitrogen fixation, siderophore synthesis for effective iron uptake, and many similar responsibilities that encourage plant growth. The average bacterial density ranged from 105 to 107 CFU/gram soil from different sampling sites. Our findings revealed that the Bulk Density, pH, CEC, EC, OC, and Soil Moisture Content were found more in the organic agriculture field. The physicochemical properties of soil revealed that the Bulk Density, pH, CEC, EC, OC, and Soil Moisture Content were found more in the organic agriculture field. In contrast, Nitrogen, P2O5, and K2O were measured at higher concentrations in the chemical agriculture field. PGPR also play a crucial role in enhancing soil's physicochemical properties, vital for maintaining soil health, fertility, and sustainable agricultural productivity. The PGPR bacteria are integral to sustainable agriculture, as they reduce the reliance on chemical fertilizers and pesticides, stimulate plant growth, and contribute to long-term soil fertility and productivity.

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