Biochar property

Biochar source

Poultry litter

Woodchip

pH

8.0 (0.04)^* a

8.9 (0.03) b

EC (dS∙m⁻¹)

42.0 (0.01) a

4.6 (0.02) b

Total Carbon (g∙kg⁻¹)

337.2 (2.5) a

244.5 (21) b

Total Nitrogen (g∙kg⁻¹)

34.9 (0.06) a

0.7(0.2) b

C:N ratio

9.7:1 (0.05) a

366:1 (64) b

Phosphorus (g∙kg⁻¹)

25.7 (0.2) a

0.8 (0.02) b

Potassium (g∙kg⁻¹)

52.4 (0.2) a

2.1 (0.1) b

Calcium (g∙kg⁻¹)

45.4 (5.8) a

10.1 (0.5) b

Magnesium (g∙kg⁻¹)

12.6 (0.9) a

2.7 (0.2) b

Sulfur (g∙kg⁻¹)

13.6 (0.3) a

0.1 (<0.01) b

Sodium (g∙kg⁻¹)

15.3 (0.6) a

0.3 (0.01) b

Iron (g∙kg⁻¹)

1.4 (0.1) a

0.9 (0.1) a

Manganese (mg∙kg⁻¹)

715.0 (18) a

420.5 (30) b

Zinc (mg∙kg⁻¹)

829.5(26) a

0.01^** (0) b

Copper (mg∙kg⁻¹)

583.0 (40) a

6.5 (0.04) b

Boron (mg∙kg⁻¹)

78.0 (4.0) a

10.4 (0.7) b