Total concentration of toxic substances in the environment (ppm)

Plant type

Variant

Al³⁺

Fe²⁺

SO₄^2-

Eleocharis dulas

Ca Dung

IR38

1

100 ± 5

135 ± 4

1000 ± 18

1.65 ± 0.07

1.26 ± 0.07

1.10 ± 0.08

2

450 ± 12

467 ± 18

1500 ± 47

2.47 ± 0.08

1.38 ± 0.04

1.15 ± 0.06

3

750 ± 16

676 ± 24

2108 ± 86

3.28 ± 0.10

1.62 ± 0.05

1.25 ± 0.05

4

890 ± 24

842 ± 32

2606 ± 58

3.30 ± 0.04

1.92 ± 0.10

0.62 ± 0.04

5

950 ± 31

907 ± 44

3209 ± 48

3.85 ± 0.14

1.64 ± 0.06

0.13 ± 0.00

6

1085 ± 525

1050 ± 58

3693 ± 92

1.67 ± 0.12

0.10 ± 0.0

0.00 ± 0.00

7

Non-toxic soil environment (control)

1.51 ± 0.04

1.45 ± 0.03

1.00 ± 0.05