Organic source

Element

Soil depth

Animal source (N = 5)

No organic fertilizer (N = 6)

Plant source (N = 4)

Cu

0 - 15 cm

0.50 ± 0.43

0.51 ± 0.22

0.18 ± 0.09

15 - 30 cm

0.50 ± 0.51

0.46 ± 0.28

0.15 ± 0.09

Fe

0 - 15 cm

4.36 ± 4.32

2.13 ± 1.37

1.76 ± 2.16

15 - 30 cm

8.88 ± 8.95

2.41 ± 1.76

1.54 ± 2.32

Mn

0 - 15 cm

1.78 ± 2.71

1.76 ± 0.43

0.53 ± 0.35

15 - 30 cm

1.60 ± 2.01

1.46 ± 0.42

0.48 ± 0.36

Zn

0.15 cm

0.86 ± 0.58

0.44 ± 0.15

0.42 ± 0.17

15 - 30 cm

0.75 ± 0.51

0.04 ± 0.01

0.38 ± 0.19

Ni

0 - 15 cm

0.01 ± 0.01

0.04 ±0.01

0.01 ± 0.01

15 - 30 cm

0.02 ± 0.01

0.03 ± 0.01

0.01 ± 0.00

Pb

0.15 cm

0.03 ± 0.01

0.02 ± 0.01

0.01 ± 0.01

15 - 30 cm

0.02 ± 0.01

0.03 ± 0.01

0.02 ± 0.01