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Table 1 Characteristics of topsoil (0–30 cm) ±SE (standard error of the mean)

From: Trace element delivery for biogas production enhanced by alternative energy crops: results from two-year field trials

Parameter

Reinshof

Sömmerling

P

mg 100 g−1, CAL

15.3 ± 1.1

11.8 ± 2.3

K

9.5 ± 0.7

20.8 ± 1.2

Mg

mg 100 g−1, CaCl2

11.8 ± 0.3

7.1 ± 0.2

Humus

%

1.9 ± 0.1

1.9 ± 0.05

Sand

%

12.7 ± 0.5

33.5 ± 0.4

Silt

69.4 ± 0.3

49.8 ± 0.1

Clay

17.9 ± 0.2

16.7 ± 0.4

Al

%, total

4.7 ± 0.07

4.1 ± 0.09

Fe

1.8 ± 0.03

1.4 ± 0.04

Ti

0.4 ± 0.002

0.3 ± 0.004

Mn

mg kg−1, total

704 ± 8

479 ± 23

Cd

0.45 ± 0.02

0.37 ± 0.02

Co

7.1 ± 0.1

8.1 ± 0.2

Cu

14.0 ± 0.2

7.0 ± 0.2

Mo

0.7 ± 0.1

0.96 ± 0.09

Ni

16.5 ± 0.6

11.8 ± 0.6

Zn

54 ± 1

50 ± 1

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Energy, Sustainability and Society

ISSN: 2192-0567

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