Isolation and characterization of Nitrogen fixing, Phosphate and Potash solubilizing bacteria and their inoculation effect on Maize (Zea Mays L.)

Abstract

The present study focused on isolating and characterizing nitrogen-fixing bacteria, phosphorus-solubilizing bacteria (PSB), and potash-mobilizing bacteria (KSB) from the rhizospheric soil of different fruit crops, including Ber, Pomegranate, Orange, Aonla, and Jamun. The study involved the identification of five nitrogen-fixing bacterial isolates (PRN-1, PRN-2, ORN-1, ORN-2, ARN-1), three phosphorus-solubilizing isolates (PRP-1, ORP-1, ARP-1), and three potash-mobilizing isolates (PRK-1, PRK-2, ORK-1). These isolates were then tested for their effectiveness in promoting plant growth. The most efficient isolate was selected for further evaluation of its impact on maize growth and yield under field conditions.