Table 4 Characteristics of soils after different treatments

pH

7.39 ± 0.12ab

7.05 ± 0.24c

7.39 ± 0.26a

7.38 ± 0.36b

Available phosphorus AP (mg/kg)

13.15 ± 2.61ab

14.95 ± 3.25a

12.25 ± 2.68b

12.73 ± 2.62b

Available potassium AK (mg/kg)

194.48 ± 3.26b

217.15 ± 2.35a

187.64 ± 3.69b

199.06 ± 2.65b

Ammonium nitrogen NH_4(g/kg)

16.42 ± 2.35a

4.58 ± 1.02c

9.38 ± 2.36b

14.38 ± 1.25a

Nitrate nitrogen NO_3(g/kg)

1.31 ± 0.25

1.15 ± 0.36

1.89 ± 0.28

1.97 ± 0.69

Available silicon ASi (mg/kg)

457.99 ± 20.35b

451.78 ± 25.69b

457.02 ± 19.89b

492.06 ± 26.98a