Applied and Environmental Soil Science

Research Article

Availability and Plant Uptake of Biosolid-Borne Metals

Table 5

Metal concentrations (means where ) of six plant species grown on sand media amended, without biosolids (Standard), with biosolids, and with phosphate rock^†.

Plant

Treatment

Shoot

Root

Shoot

Root

Shoot

Root

Shoot

Root

Shoot

Root

Shoot

Root

mg kg⁻¹

Chickpea

Standard

1.7^b

1.0^c

1.5^b

1.6^c

4.9^b

9.0^b

22^b

51^b

3.1^b

6.2^b

15^c

38^b

Biosolids

14^a

34^a

3.7^a

17^a

16^a

51^a

50^a

172^a

9.1^a

13^a

201^a

636^a

Phosphate rock

1.6^b

1.7^b

0.8^c

2.1^b

4.8^b

6.8^c

3.9^c

26^c

2.3^c

1.5^c

25^b

36^b

Rape

Standard

1.9^c

1.1^c

1.4^c

1.2^c

6.5^b

11^c

8.5^b

38^b

1.1^c

2.6^b

30^b

34^b

Biosolids

16^a

23^a

4.2^a

77^a

16^a

93^a

25^a

104^a

13^a

31^a

253^a

344^a

Phosphate rock

2.5^b

2.2^b

1.9^b

3.6^b

3.4^c

8.4^b

3.9^c

36^b

3.6^b

1.0^c

19^c

23^c

Swiss chard

Standard

1.4^c

1.1^c

0.9^b

1.7^c

9.8^b

17^b

12^b

38^b

2.4^c

5.0^b

21^b

32^b

Biosolids

29^a

56^a

4.6^a

34^a

23^a

241^a

27^a

399^a

6.0^a

13^a

335^a

676^a

Phosphate rock

2.2^b

3.6^b

1.5^b

3.9^b

7.8^c

13^c

4.9^c

35^b

3.7^b

2.8^c

22^b

33^b

Corn

Standard

1.2^c

1.6^c

1.1^b

1.3^b

4.9^b

18^b

12^c

24^c

1.9^b

7.8^b

25^b

32^b

Biosolids

22^a

33^a

1.3^a

45^a

12^a

58^a

41^a

242^a

11^a

21^a

226^a

479^a

Phosphate rock

1.4^b

2.5^b

0.7^c

1.0^c

4.5^b

8.6^a

20^b

40^b

2.1^b

0.2^c

22^c

18^c

Sudan grass

Standard

1.7^c

1.1^c

1.6^a

1.3^c

8.1^b

11^b

21^b

21^c

1.4^c

5.1^b

27^c

29^b

Biosolids

20^a

29^a

1.7^a

26^a

12^a

88^a

65^a

184^a

7.0^a

11^a

316^a

598^a

Phosphate rock

4.9^b

3.8^b

1.6^a

1.8^b

9.2^b

11^b

22^b

45^b

2.8^b

2.2^c

51^b

29^b

Durum wheat

Standard

1.8^c

2.0^c

2.0^b

1.2^c

14^b

16^b

23^b

61^b

2.3^b

2.6^b

37^b

42^b

Biosolids

26^a

31^a

3.2^a

42^a

18^a

91^a

73^a

168^a

12^a

20^a

249^a

614^a

Phosphate rock

2.7^b

3.1^b

1.3^c

1.5^b

11^c

17^b

23^b

39^c

3.0^b

3.2^b

36^c

39^b

The differences of the metal concentrations among the treatments for each plant were tested by one-way ANOVA. In each column of each plant and among the treatments, values followed by same lowercase letter were not significantly different at .