Table 2.

Nitrogen fixing efficiency of Azotobacter (SR-4).

Sr. No.	Fermentation Time	Measured nitrogen (mg/100 mL)	Carbon utilized (g/100 mL)	Efficiency (mg of N/g of carbon)
1	12 h	08.00	0.34	23.52
2	24 h	10.60	0.42	25.23
3	36 h	14.00	0.49	28.57
4	48 h	16.20	0.54	30.00
5	60 h	18.80	0.58	32.41
6	72 h	21.40	0.61	35.08