Assessing the Potential of Biochar for Improving Soil Physical Properties and Tree Growth

Table 1

Baseline soil and biochar characteristics for Casuarina field experiment.

Parameter	Baseline soil status	Biochar characteristics
PH	6.65	8.7
EC (mS/cm)	0.052	1.39
Total C (%)	0.65	48
Total N (%)	0.06	0.84
Soil organic matter (%)	1.12	—
P (mg kg^−1)	1.8	26.6
K (mg kg^−1)	62	1166.1
Ca (mg kg^−1)	200	746
Mg (mg kg^−1)	149	354
Na (mg kg^−1)	—	989
Texture (90% sand, 6% clay, and 4% silt)	Sand	—
Bulk density (g cm^−3)	1.3	—
C/N ratio	—	57
CEC (cmol(+) kg^−1)	—	11.2