Residues

C

N

C/N

P

Ca

Mg

K

mg∙g⁻¹

mg∙g⁻¹

Straw

5.8 (0.1)

479.0 (12.0)

8.0 (2.0)

59.9 (1.3)

1.0 (0.1)

7.7 (0.2)

1.5 (0.5)

9.5 (3.5)

Biochar

9.2 (0.6)

674.6 (35.4)

13.8 (1.5)

48.9 (4.2)

2.2 (0.9)

5.1 (1.1)

3.2 (0.7)

12.5 (2.2)

Filtercake

6.5 (1.1)

133.9 (27.2)

8.4 (2.3)

15.9 (8.9)

10.5 (1.1)

10.0 (0.8)

1.7 (0.3)

1.4 (0.5)

Vinasse

4.7 (0.8)

17.0 (8.3)

0.8 (0.2)

21.2 (4.4)

0.6 (0.2)

0.8 (0.2)

0.3 (0.1)

3.5 (0.8)