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<tr>
 
<tr>
 
<td>Total phosphorus (% dry wt)</td>
 
<td>Total phosphorus (% dry wt)</td>
<td></td>
+
<td>0.036 - 0.41</td>
 
<td>0.3</td>
 
<td>0.3</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total nitrogen (% dry wt)</td>
 
<td>Total nitrogen (% dry wt)</td>
<td></td>
+
<td>0.39 - 0.5</td>
 
<td>0.5</td>
 
<td>0.5</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total potassium (% dry wt)</td>
 
<td>Total potassium (% dry wt)</td>
<td></td>
+
<td>0.4 - 2.39</td>
<td>0.4</td>
+
<td>0.819</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total carbon (%)</td>
 
<td>Total carbon (%)</td>
<td></td>
+
<td>42 - 49</td>
<td></td>
+
<td>47.1</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total hydrogen (%)</td>
 
<td>Total hydrogen (%)</td>
 
<td></td>
 
<td></td>
<td></td>
+
<td>4.4</td>
</tr>
+
<tr>
+
<td>Total oxygen (%)</td>
+
<td></td>
+
<td></td>
+
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>pH</td>
 
<td>pH</td>
<td></td>
+
<td>4.9 - 6.9</td>
<td>5.1</td>
+
<td>5.9</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Cation exchange capacity (cmol/kg)</td>
 
<td>Cation exchange capacity (cmol/kg)</td>
<td></td>
+
<td>31.7 - 130</td>
<td></td>
+
<td>50</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<tr>
 
<tr>
 
<td>Electrical conductivity (ds/m)</td>
 
<td>Electrical conductivity (ds/m)</td>
<td></td>
+
<td>39 - 2900</td>
<td>0.80</td>
+
<td>582</td>
</tr>
+
<tr>
+
<td>Pore volume (cm<sup>3</sup>/g)</td>
+
<td></td>
+
<td></td>
+
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total calciium (%)</td>
 
<td>Total calciium (%)</td>
 
<td></td>
 
<td></td>
<td></td>
+
<td>0.18</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Total magnesium (%)</td>
 
<td>Total magnesium (%)</td>
 
<td></td>
 
<td></td>
<td></td>
+
<td>0.11</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total copper (%)</td>
+
<td>Total copper (mg/kg)</td>
<td></td>
+
 
<td></td>
 
<td></td>
 +
<td>10.3</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total zinc (%)</td>
+
<td>Total zinc (mg/kg)</td>
<td></td>
+
 
<td></td>
 
<td></td>
 +
<td>4</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total aluminum (%)</td>
+
<td>Total manganese (mg/kg)</td>
<td></td>
+
 
<td></td>
 
<td></td>
 +
<td>92</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total iron (%)</td>
+
<td>Water holding capacity</td>
<td></td>
+
<td>52-69</td>
 
<td></td>
 
<td></td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total manganese (%)</td>
+
<td>Bulk density (g/cm<sup>3</sup>)</td>
<td></td>
+
<td>0.025 - 0.132</td>
<td></td>
+
<td>0.06</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Total sulfur (%)</td>
+
<td>Water holding capacity (% by wt)</td>
<td></td>
+
<td>137 - 1100</td>
<td></td>
+
<td>566</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Water holding capacity</td>
+
<td>Total pore space (%)</td>
<td>52-69</td>
+
<td>85.5 - 98.3</td>
<td></td>
+
<td>95.2</td>
 
</tr>
 
</tr>
 
</table>
 
</table>
 
<font size=1>Primary references for this data:
 
<font size=1>Primary references for this data:
 
*Cresswell
 
*Cresswell
 +
*Abad et al., 2002
 +
*Abad et al., 2005
 +
*Asiah et al., 2004
 +
*Kumar et al., 2010
 +
*Lodolini et al., 2017
 
</font size>
 
</font size>

Revision as of 13:59, 13 February 2020

Chemical and physical properties of biochar.
Link to this table

Property Range found in literature1 Median value from literature
Total phosphorus (% dry wt) 0.036 - 0.41 0.3
Total nitrogen (% dry wt) 0.39 - 0.5 0.5
Total potassium (% dry wt) 0.4 - 2.39 0.819
Total carbon (%) 42 - 49 47.1
Total hydrogen (%) 4.4
pH 4.9 - 6.9 5.9
Cation exchange capacity (cmol/kg) 31.7 - 130 50
Surface area (m2/g
Electrical conductivity (ds/m) 39 - 2900 582
Total calciium (%) 0.18
Total magnesium (%) 0.11
Total copper (mg/kg) 10.3
Total zinc (mg/kg) 4
Total manganese (mg/kg) 92
Water holding capacity 52-69
Bulk density (g/cm3) 0.025 - 0.132 0.06
Water holding capacity (% by wt) 137 - 1100 566
Total pore space (%) 85.5 - 98.3 95.2

Primary references for this data:

  • Cresswell
  • Abad et al., 2002
  • Abad et al., 2005
  • Asiah et al., 2004
  • Kumar et al., 2010
  • Lodolini et al., 2017

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