Plant species

Exp.

Treatment

Design

A. geniculatus

A. spica-venti

P. annua

C. bursa-pastoris

C. canadensis

V. arvensis

1a

Monocultures^†

22.36 ± 1.05

15.14 ± 0.73

25.00 ± 1.00

24.91 ± 0.62

13.16 ± 0.44

17.51 ± 1.06

Mixed communities^‡

23.37 ± 0.71

23.45 ± 0.63

23.32 ± 0.95

20.92 ± 0.75

21.90 ± 0.77

22.06 ± 0.55

1b

Home soil

Monocultures

8.33 ± 0.51

6.44 ± 0.33

7.67 ± 0.45

6.31 ± 0.68

6.18 ± 0.33

6.35 ± 1.55

Foreign soil

Monocultures

9.58 ± 0.40

7.95 ± 0.30

9.08 ± 0.64

7.97 ± 0.73

6.40 ± 0.15

8.63 ± 0.46

Home soil

Mixed comm.

Early sp.

0.18 ± 0.07

0.76 ± 0.10

0.10 ± 0.03

0.68 ± 0.09

0.60 ± 0.05

0.36 ± 0.16

Mid sp.

9.42 ± 0.30

6.62 ± 0.66

10.63 ± 0.46

7.54 ± 0.50

12.90 ± 1.28

12.49 ± 0.36

Total

9.62 ± 0.37

10.39 ± 0.71

10.72 ± 0.45

8.22 ± 0.57

13.49 ± 1.25

12.85 ± 0.45

Foreign soil

Mixed comm.

Early sp.

0.45 ± 0.17

1.56 ± 0.40

1.58 ± 0.16

2.85 ± 0.34

0.75 ± 0.04

0.95 ± 0.16

Mid sp.

10.93 ± 0.57

8.27 ± 0.46

9.59 ± 0.40

6.59 ± 0.50

8.57 ± 0.70

9.93 ± 0.53

Total

11.38 ± 0.58

9.83 ± 0.27

11.17 ± 0.47

9.44 ± 0.53

9.32 ± 0.69

10.89 ± 0.53