Table 1

Isolates	OD₅₄₃nm	Isolates	OD ₅₄₃nm	Isolates	OD₅₄₃nm
Rhizobium 4R	0.001	Rhizobium PS2	0.095	Azotobacter P11	0.242
Rhizobium A3	0.219	Rhizobium A1	0.250	Azotobacter P81	0.001
Rhizobium 6R	0.121	Rhizobium Sin1	0.005	Azotobacter A1	0.002
Rhizobium A4	0.108	Rhizobium D1	0.002	Azotobacter D1	0.255
Rhizobium A₂A	0.072	Rhizobium 1R	0.036	Azotobacter D2	0.000
Rhizobium A₂B	0.192	Rhizobium 2R	0.216	Azotobacter PHB+	0.282

Table 1: Comparative evaluation of nitrate reduction by different strains of Rhizobium, Azotobacter.