Biochar^a

Ash content (%)

Total elemental concentration (g·kg⁻¹)

Ca

Mg

K

P

DFB

3.07 ± 0.20

45.75 ± 0.62

49.16 ± 0.43

52.86 ± 0.73

41.04 ± 1.29

MB

24.80 ± 0.12

45.01 ± 0.81

112.00 ± 3.27

94.67 ± 3.65

41.55 ± 1.93

PEB

25.10 ± 0.12

45.73 ± 0.56

104.79 ± 2.69

78.70 ± 1.94

95.72 ± 1.64