Input materials*

T-C (%)

T-N (%)

CC

27.1 ± 0.2

1.1

PC

41.5 ± 0.3

1.5

Rice hull

36.47 ± 0.4

0.37 ± 0.03

Biochar based on rice hull

44.3 ± 0.1

0.07 ± 0.1