Table 2. Proportions of C and N and molar C:N ratio in the biomass under different N treatments in the late stationary phase cultures on cultivation days 14, 16, and 19.
Day 14 | Day 16 | Day 19 | |||||||
---|---|---|---|---|---|---|---|---|---|
LN | MN | HN | LN | MN | HN | LN | MN | HN | |
C (%) | 45.45 ± 0.56 | 47.02 ± 0.49 | 47.90 ± 0.36 | 46.74 ± 0.64 | 47.53 ± 0.13 | 48.63 ± 0.21 | 47.81 ± 0.50 | 47.88 ± 0.34 | 48.81 ± 0.65 |
N (%) | 2.1 ± 0.11 | 2.53 ± 0.13 | 3.88 ± 0.13 | 2.0.7 ± 0.08 | 2.43 ± 0.08 | 3.81 ± 0.11 | 1.98 ± 0.08 | 2.3 ± 0.12 | 3.66 ± 0.11 |
C:N | 25 | 22 | 14 | 26 | 23 | 15 | 28 | 24 | 16 |
Notes:
Values for C and N are mean ± SE (n = 3).
LN, low N; MN medium N; HN, high N.