Table 2.
Changes of the chemical properties of tested soil sample for three years tests.
| Years | Treatment | Total N (g/kg) |
Total P (g/kg) |
Total K (g/kg) |
Available N (mg/kg) |
Available P (mg/kg) |
Available K (mg/kg) |
Organic matter (g/kg) |
pH |
|---|---|---|---|---|---|---|---|---|---|
| 2016 | C | 1.15d | 0.41b | 15.80b | 51.00d | 31.94b | 91.75c | 10.22c | 8.13ab |
| HA | 1.11e | 0.41b | 15.10c | 51.22 cd | 32.19b | 92.83c | 10.67c | 8.09b | |
| 2017 | C | 1.18bc | 0.42b | 16.07b | 51.45 cd | 31.87b | 91.93c | 10.54c | 8.15ab |
| HA | 1.19b | 0.44ab | 16.23b | 52.67b | 36.43a | 95.52b | 12.87b | 8.09b | |
| 2018 | C | 1.16 cd | 0.41b | 16.07b | 51.83c | 32.24b | 91.70c | 10.46c | 8.18a |
| HA | 1.22a | 0.46a | 17.40a | 55.60a | 36.77a | 98.83a | 14.29a | 8.13ab |