Table 3 Soil properties (i.e. pH, organic matter, total N, total P, total K, available P, available K, available K, exchangeable Ca, exchangeable Mg, available Cu, available Zn, available Fe, available Mn, and available B) of mile-a-minute ( Mikania micrantha ) and sweet potato ( Ipomoea batata ) soils under mono and mixed culture conditions

pH

7.25 ± 0.02e

7.34 ± 0.02d

7.37 ± 0.01c

7.40 ± 0.01b

7.41 ± 0.02b

7.41 ± 0.02b

7.42 ± 0.02b

7.47 ± 0.02a

Organic mater (g/kg)

44.05 ± 0.47a

34.13 ± 0.43d

40.06 ± 0.54c

42.18 ± 0.42b

42.42 ± 0.51b

42.06 ± 0.34b

42.38 ± 0.34b

42.37 ± 0.47b

Total N (g/kg)

1.51 ± 0.03a

1.36 ± 0.02d

1.38 ± 0.02d

1.41 ± 0.02c

1.44 ± 0.03bc

1.43 ± 0.02bc

1.44 ± 0.02bc

1.45 ± 0.02b

Total P (g/kg)

1.37 ± 0.03a

1.34 ± 0.02ab

1.33 ± 0.03bc

1.29 ± 0.02c

1.25 ± 0.02d

1.26 ± 0.01d

1.25 ± 0.02d

1.24 ± 0.03d

Total K (g/kg)

3.95 ± 0.03a

3.31 ± 0.02e

3.37 ± 0.05d

3.38 ± 0.03d

3.39 ± 0.02d

3.50 ± 0.05c

3.81 ± 0.03b

3.82 ± 0.04b

Available N (mg/kg)

116.04 ± 0.17a

106.31 ± 0.14f

107.33 ± 0.24e

107.23 ± 0.30e

108.10 ± 0.35d

108.35 ± 0.39d

109.58 ± 0.48c

111.01 ± 0.37b

Available P (mg/kg)

42.13 ± 0.36a

31.21 ± 0.34f

34.27 ± 0.26e

35.44 ± 0.16d

36.99 ± 0.11c

37.14 ± 0.18c

37.32 ± 0.40c

38.48 ± 0.17b

Available K (mg/kg)

51.07 ± 0.42a

28.38 ± 0.29 g

29.03 ± 0.12f

30.39 ± 0.17e

31.75 ± 0.18d

32.26 ± 0.41c

33.02 ± 0.37b

33.19 ± 0.37b

Exchangeable Ca (mg/kg)

3015.05 ± 17.01a

2688.22 ± 1.96f

2714.75 ± 4.61e

2726.08 ± 4.27de

2736.86 ± 7.79d

2730.49 ± 9.91d

2770.54 ± 7.83c

2895.23 ± 16.44b

Exchangeable Mg (mg/kg)

206.62 ± 3.01a

186.92 ± 2.06d

187.80 ± 2.04d

191.37 ± 2.11c

195.15 ± 1.32b

195.55 ± 0.63b

198.09 ± 1.37b

198.19 ± 2.16b

Available Cu (mg/kg)

9.45 ± 0.30a

9.01 ± 0.31b

8.25 ± 0.22c

8.18 ± 0.13c

7.98 ± 0.17c

8.01 ± 0.15c

7.51 ± 0.12d

7.51 ± 0.10d

Available Zn (mg/kg)

7.92 ± 0.15a

7.69 ± 0.21a

7.26 ± 0.21b

6.93 ± 0.18c

6.83 ± 0.13c

6.82 ± 0.12c

6.48 ± 0.15d

6.46 ± 0.19d

Available Mn (mg/kg)

11.47 ± 0.33a

9.03 ± 0.13d

9.08 ± 0.12 cd

9.36 ± 0.14 cd

9.40 ± 0.25c

9.42 ± 0.22c

10.35 ± 0.25b

10.43 ± 0.26b

Available B (mg/kg)

0.71 ± 0.02a

0.43 ± 0.02e

0.47 ± 0.03d

0.54 ± 0.03c

0.55 ± 0.03c

0.55 ± 0.03c

0.57 ± 0.02c

0.66 ± 0.03b

Available Fe (mg/kg)

34.05 ± 0.55a

32.07 ± 0.56b

30.62 ± 0.43c

29.17 ± 0.33d

23.99 ± 0.44e

23.83 ± 0.37e

23.56 ± 0.29e

23.42 ± 0.26e