Sample (cm)

CK

T1

T2

T3

T4

0 - 20

20 - 40

0 - 20

20 - 40

0 - 20

20 - 40

0 - 20

20 - 40

0 - 20

20 - 40

pH

5.2 ± 0.03b

5.7 ± 0.03a

4.7 ± 0.02d

4.8 ± 0.02c

5.2 ± 0.04b

4.1 ± 0.03e

5.7 ± 0.03a

4.8 ± 0.02c

5.7 ± 0.02a

5.2 ± 0.02b

Organic mater (g・kg⁻¹)

9.81 ± 0.11g

9.30 ± 0.03h

16.90 ± 0.1c

12.50 ± 0.05f

19.50 ± 0.15a

12.60 ± 0.07f

17.20 ± 0.15b

17.20 ± 0.04b

16.00 ± 0.10e

16.60 ± 0.10d

N (g・kg⁻¹)

1.22 ± 0.02e

0.82 ± 0.01f

1.45 ± 0.03b

1.25 ± 0.03e

1.52 ± 0.03a

1.38 ± 0.03c

1.49 ± 0.01

1.30 ± 0.03d

1.52 ± 0.04a

1.50 ± 0.01a

P (g・kg⁻¹1)

0.64 ± 0.01g

0.58 ± 0.02h

0.92 ± 0.01d

0.91 ± 0.01d

1.59 ± 0.04a

0.79 ± 0.03f

1.47 ± 0.01b

1.07 ± 0.02c

0.85 ± 0.02e

0.83 ± 0.01e

K (g・kg⁻¹)

23.40 ± 0.50c

23.40 ± 0.40c

25.30 ± 1.01ab

25.10 ± 0.80b

26.70 ± 0.70a

25.00 ± 0.50b

25.70 ± 0.50c

25.10 ± 0.40c

26.00 ± 0.7ab

25.60 ± 1.1ab

Alkaline N (mg・kg⁻¹)

82.9 ± 2.3g

71.6 ± 1.6h

119.0 ± 2.0bc

117.0 ± 1.5cd

122.0 ± 2.5b

117.0 ± 3.0cd

138.0 ± 3.0a

113.0 ± 1.9de

109.1 ± 2.0ef

107.3 ± 2.8f

Available P (mg・kg⁻¹)

17.9 ± 0.2h

12.6 ± 0.3i

70.3 ± 1.4d

41.4 ± 1.7g

143.4 ± 3.5a

64.8 ± 1.9e

92.4 ± 2.8b

80.7 ± 3.1c

51.7 ± 2.4f

38.6 ± 1.7g

Rapidly available K (mg・kg⁻¹)

124.0 ± 4.0h

98.0 ± 2.4i

324.0 ± 3.8e

303.4 ± 3.0f

586.0 ± 3.5a

289.6 ± 2.2g

420.6 ± 2.8c

351.6 ± 3.5d

443.5 ± 22.3b

299.9 ± 3.1fg

Available B (mg・kg⁻¹)

0.43 ± 0.02e

0.42 ± 0.01e

0.60 ± 0.01b

0.37 ± 0.02f

0.78 ± 0.01a

0.57 ± 0.02c

0.23 ± 0.01h

0.30 ± 0.01g

0.78 ± 0.01a

0.54 ± 0.01d

Available Cu (mg・kg⁻¹)

1.86 ± 0.06e

0.90 ± 0.02f

4.78 ± 0.10c

3.69 ± 0.07d

15.72 ± 0.28a

3.67 ± 0.06d

7.86 ± 0.41b

4.57 ± 0.14c

4.75 ± 0.01c

3.53 ± 0.01d

Available Zn (mg・kg⁻¹)

3.04 ± 0.15f

1.66 ± 0.08g

5.52 ± 0.17b

4.37 ± 0.17e

7.72 ± 0.21a

5.00 ± 0.14c

5.55 ± 0.14b

4.66 ± 0.18d

5.67 ± 0.16b

4.72 ± 0.10d

Available Fe (mg・kg⁻¹)

38.13 ± 1.50d

37.30 ± 1.00e

43.78 ± 1.30ef

38.95 ± 1.10f

52.67 ± 1.40b

51.09 ± 0.90b

56.74 ± 1.30a

51.09 ± 1.20b

51.09 ± 1.10b

49.43 ± 1.70c

Available Mn (mg・kg⁻¹)

2.97 ± 0.17c

2.12 ± 0.12f

2.91 ± 0.11c

2.61 ± 0.11de

4.53 ± 0.13b

2.70 ± 0.10d

6.75 ± 0.15a

4.69 ± 0.09b

2.61 ± 0.11de

2.42 ± 0.12e

Exchangeable Ca (mg・kg⁻¹)

8.16 ± 0.20c

7.46 ± 0.26de

7.66 ± 0.16d

7.45 ± 0.15de

7.03 ± 0.13e

6.13 ± 0.13f

7.24 ± 0.14de

6.21 ± 0.11f

10.70 ± 0.40a

10.10 ± 0.50b

Exchangeable Mg (mg・kg⁻¹)

0.35 ± 0.01g

0.34 ± 0.02g

0.45 ± 0.02d

0.40 ± 0.01e

0.47 ± 0.02d

0.39 ± 0.02ef

0.62 ± 0.02a

0.53 ± 0.01b

0.50 ± 0.02c

0.36 ± 0.01fg