Kadar merkuri (Hg) yang tinggi pada tailing tambang emas adalah sumber pencemaran lingkungan termasuk lahan pertanian. Penurunan kadar Hg di dengan metode bioremediasi strategi efektif, murah dan mudah. Azotobacter rizobakteri pemfiksasi nitrogen penghasil eksopolisakarida mengubah mobilitas logam berat serta memicu pertumbuhan tanaman optimal jika terdapat bahan organik. Penelitian ini dilakuk...

Azotobacter spp. are known for their ability to fix nitrogen into the soil non-symbiotically. Their activities can be enhanced through provision of optimum cultural conditions. Hence, this study aimed isolate and optimize growth (medium condtions) with a focus on pH, sucrose indole acetic acid (IAA) concentrations. The counts obtained from rhizosphere crops ranged 4.0 × 104 – 1.0 106 CFU/g. thr...