Chemical properties | Treatment | |||
CK | BA | CC | BC | |
pH | 5.09 ± 0.09d | 6.05 ± 0.22c | 7.10 ± 0.12b | 7.40 ± 0.23a |
organic matter (%) | 3.22 ± 0.07a | 2.67 ± 0.14b | 2.32 ± 0.07c | 2.07 ± 0.05d |
total N (%) | 0.13 ± 0.01b | 0.14 ± 0.01b | 0.17 ± 0.01a | 0.18 ± 0.01a |
alkaline N (mg/kg) | 107.75 ± 2.45d | 126.17 ± 3.37c | 140.76 ± 6.07b | 163.09 ± 5.37a |
available P (mg/kg) | 100.72 ± 4.03a | 76.20 ± 4.52a | 65.27 ± 3.08b | 49.381 ± 5.61b |
available K (mg/kg) | 439.35 ± 22.64b | 575.91 ± 16.37a | 593.13 ± 37.25a | 610.89 ± 35.57a |
exchangeable Ca (mg/kg) | 1302.75 ± 90.23c | 1525.01 ± 50.69b | 2325.01 ± 122.06a | 2450.71 ± 141.58a |
exchangeable Mg (mg/kg) | 96.20 ± 1.20d | 111.45 ± 5.71c | 132.57 ± 6.59b | 152.00 ± 10.42a |