Table 6

Physico-chemical parameters (mean ± standard error) of water and soil in C. carpio biofloc system.

Parameters T1E1 T2E1 T3E1 C2E1 T1E2 T2E2 T3E2 C2E2 C1
Water pH 7.24–8.24 7.29–8.21 7.41–8.22 7.78–8.27 7.31–8.14 7.28–8.15 7.28–8.16 7.51–8.15 7.47–8.15
1TDS (mg l−1) 270 ± 30.31h 255 ± 26.79g 171.3 ± 4.46c 158.5 ± 17.32b 236.5 ± 23.26f 219.3 ± 21.92e 160.08 ± 5.53b 151.5 ± 17.92a 201.1 ± 18.36d
2DO (mgl−1) 7.87 ± 0.33a 7.95 ± 0.33a 8.19 ± 0.23b 8.94 ± 0.34c 9.20 ± 0.27d 8.39 ± 0.41c 8.41 ± 0.32c 7.83 ± 0.29a 7.89 ± 0.24a
3TA (mgl−1) 129.85 ± 4.51b 133.11 ± 4.17c 137.52 ± 4.60d 140.19 ± 4.78e 122.30 ± 2.92a 130.19 ± 5.16b 132.00 ± 4.87c 138.00 ± 5.30d 130.04 ± 3.99b
4TH (mgl−1) 445.15 ± 32.28d 417.63 ± 33.87c 349.93 ± 33.49a 409.74 ± 39.61b 441.19 ± 29.95d 410.59 ± 35.46b 402.74 ± 39.92b 409.41 ± 46.35b 486.74 ± 40.97e
5Ortho-P (mgl−1) 0.081 ± 0.0g 0.074 ± 0.0f 0.061 ± 0.0d 0.051 ± 0.0a 0.073 ± 0.0s 0.066 ± 0.0f 0.057 ± 0.0e 0.05 ± 0.0a 0.058 ± 0.0c
6NH3-N (mgl−1) 0.173 ± 0.03h 0.139 ± 0.02e 0.109 ± 0.01c 0.086 ± 0.01a 0.191 ± 0.03i 0.148 ± 0.02f 0.128 ± 0.01d 0.103 ± 0.01b 0.168 ± 0.02g
7NO2-N (mgl−1) 0.007 ± 0.0f 0.005 ± 0.0d 0.004 ± 0.0c 0.002 ± 0.0a 0.005 ± 0.0d 0.003 ± 0b 0.003 ± 0.0b 0.002 ± 0.0a 0.006 ± 0.0e
8NO3-N (mgl−1) 0.304 ± 0.03g 0.253 ± 0.03e 0.226 ± 0.02d 0.173 ± 0.01a 0.339 ± 0.04h 0.281 ± 0.04f 0.249 ± 0.03e 0.178 ± 0.01b 0.199 ± 0.02c
9TAN (mgl−1) 0.484 ± 0.05h 0.397 ± 0.04f 0.340 ± 0.03c 0.260 ± 0.01a 0.535 ± 0.06i 0.431 ± 0.05g 0.379 ± 0.04e 0.283 ± 0.01b 0.373 ± 0.04d
10TAN:P 5.99 ± 0.54d 5.29 ± 0.53b 5.76 ± 0.74c 5.20 ± 0.34a 7.24 ± 0.64g 6.39 ± 0.64e 6.81 ± 0.83f 5.86 ± 0.44c 6.33 ± 0.59e
11Soil pH 7.33–8.43 7.10–8.37 7.03–7.67 7.13–7.53 7.27–8.20 7.10–7.97 7.20–8.00 7.13–7.63 7.17–7.63
12SOC (mg g−1) 2.71 ± 0.38g 2.28 ± 0.29e 1.56 ± 0.16c 2.17 ± 0.31d 2.54 ± 0.34f 2.22 ± 0.28d 1.48 ± 0.16b 2.17 ± 0.31d 0.9 ± 0.03a
13SAP (mg kg−1) 72.76 ± 5.05e 69.83 ± 4.79d 61.41 ± 2.40b 52.25 ± 0.86a 71.66 ± 4.66e 68.97 ± 4.53d 59.21 ± 1.76b 51.90 ± 0.81a 66.76 ± 4.59c
14SAN (mg kg−1) 421.24 ± 36.31e 365.94 ± 33.31d 253.94 ± 16.15c 178.58 ± 11.07a 437.15 ± 40.92f 375.61 ± 36.49d 260.85 ± 14.25c 194.62 ± 10.30b 178.58 ± 11.07a
15SAN:SAP 5.76 ± 0.32h 5.19 ± 0.26f 4.14 ± 0.22c 3.43 ± 0.21a 6.04 ± 0.41i 5.40 ± 0.37g 4.49 ± 0.23d 3.75 ± 0.18b 4.59 ± 0.27e

Note: Means superscripted with different letters in each row are significantly different (P < 0.05).

Abbreviation:1TDS (mg l−1),Total dissolved solids; 2DO (mg l−1), Dissolved oxygen; 3TA (mg l−1), Total alkalinity; 4TH (mg l−1), Total hardness; 5Ortho-P (mg l−1), Ortho-phosphorous; 6NH3-N (mg l−1), Ammonia-nitrogen; 7NO2-N (mg l−1), Nitrite −nitrogen; 8NO3-N (mg l−1), 9Nitrate-nitrogen, 10TAN (mg l−1), Total available nitrogen; 11TAN:P, ratio of Total available nitrogen and phosphorous; 12SOC (mg g−1), Soil organic carbon; 13SAP (mg kg−1), Soil available phosphorous; 11SAN (mg kg−1), Soil available nitrogen; 15SAN:SAP, Ratio of Soil available nitrogen and Soil available phosphorous.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.