Table 2 Chemical composition of amendments used in experiment.

From: Efficacy of various amendments for immobilization of potentially toxic elements in wastewater contaminated soils

Sr. No.

Determinations

Unit

FYM

Compost

Poultry Manure

Press Mud

Biochar

Rice Husk

Wheat Straw

Gypsum

Horse Waste

1

pH (1:1)

–

7.92

7.29

5.70

7.8

7.1

7.1

8.2

6.7

8.23

2

EC

dS m−1

12.78

6.24

6.84

2.2

0.75

1.06

1.75

2.1

6.92

3

Organic Matter

%

35.98

34.89

26.54

21.0

21.14

19.34

19.25

–

35.62

4

Organic Carbon

%

20.92

20.28

15.43

12.21

12.29

11.24

11.19

–

20.17

5

Total nitrogen

%

1.81

1.72

1.35

1.09

1.11

0.95

0.97

–

1.75

6

C/N ratio

–

11.56

11.79

11.43

11.20

11.07

11.83

11.54

–

11.53

7

Lead

mg kg−1

0.54

0.58

1.29

0.05

0.65

0.27

–

3.52

0.97

8

Cadmium

mg kg−1

0.38

0.32

0.41

0.04

0.13

0.19

–

0.95

0.17

9

Nickel

mg kg−1

1.02

1.08

1.63

0.03

0.73

0.41

0.15

0.58

1.00

10

Arsenic

mg kg−1

–

–

1.67

–

0.24

–

–

0.22

–

Back to article page