TABLE 2.
Physical, chemical, and biological characteristics of soil from sample sitesa
| Field code | % WHC | pH | %
|
Concn (mg kg−1) of:
|
% LOI | No. of bacteria g−1
|
||||
|---|---|---|---|---|---|---|---|---|---|---|
| Carbon | Nitrogen | Phosphate | Nitrate | Sulfate | Culturable | Total | ||||
| EC2 | 29.84 ± 0.59 | 7.98 ± 0.06 | 1.89 ± 0.14 | 0.18 ± 0.00 | 25.96 ± 1.49 | 113.37 ± 2.71 | 22.96 ± 0.52 | 2.93 ± 0.02 | 8.71E+06 ± 9.37E+05 | 1.06E+09 ± 6.60E+07 |
| EC3 | 28.32 ± 0.37 | 7.98 ± 0.06 | 1.62 ± 0.06 | 0.17 ± 0.01 | 40.99 ± 4.00 | 111.77 ± 9.46 | 27.90 ± 1.29 | 2.97 ± 0.01 | 7.58E+06 ± 9.85E+05 | 9.51E+08 ± 6.33E+07 |
| RMA | 38.11 ± 0.75 | 7.44 ± 0.06 | 1.37 ± 0.03 | 0.18 ± 0.00 | 34.71 ± 2.84 | 142.52 ± 9.83 | 17.31 ± 0.21 | 3.41 ± 0.04 | 9.32E+06 ± 2.62E+05 | 1.22E+09 ± 5.75E+07 |
| RMB | 36.74 ± 0.21 | 7.36 ± 0.02 | 0.90 ± 0.03 | 0.14 ± 0.01 | 97.64 ± 1.50 | 98.19 ± 8.61 | 16.75 ± 0.88 | 2.21 ± 0.08 | 7.11E+06 ± 2.35E+05 | 1.24E+09 ± 5.72E+07 |
| RMC | 35.26 ± 1.15 | 7.70 ± 0.00 | 0.68 ± 0.02 | 0.11 ± 0.01 | 39.13 ± 2.74 | 119.39 ± 5.00 | 16.66 ± 0.17 | 2.05 ± 0.01 | 9.91E+06 ± 2.32E+05 | 1.42E+09 ± 1.68E+08 |
| RCA | 37.02 ± 0.33 | 6.65 ± 0.01 | 1.01 ± 0.04 | 0.14 ± 0.00 | 48.44 ± 1.53 | 107.47 ± 5.26 | 22.89 ± 2.81 | 2.68 ± 0.03 | 8.55E+06 ± 1.88E+06 | 1.87E+09 ± 3.11E+07 |
| RCC | 37.47 ± 1.19 | 6.55 ± 0.01 | 1.28 ± 0.12 | 0.17 ± 0.01 | 102.91 ± 13.20 | 134.62 ± 2.65 | 21.12 ± 0.29 | 3.29 ± 0.01 | 8.21E+06 ± 7.81E+05 | 1.63E+09 ± 5.15E+07 |
| RCD | 37.35 ± 0.38 | 6.70 ± 0.01 | 1.17 ± 0.02 | 0.16 ± 0.01 | 65.39 ± 1.45 | 226.70 ± 3.04 | 20.77 ± 0.94 | 3.18 ± 0.09 | 7.07E+06 ± 4.17E+05 | 1.83E+09 ± 1.80E+08 |
a
Data are reported as means and standard errors of the means for three replicates. WHC, water-holding capacity; LOI, loss on ignition to determine organic matter content.