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Water extractable phosphate in composts and land-applied organic materials

<Font size=3>'''Water extractable phosphate in composts and land-applied organic materials'''</font size><br>
Link to this [[Water extractable phosphate in composts and land-applied organic materials|table]].

<table class="sortable">
<tr>
<th>Feedstock</th>
<th>Biosolids treatment</th>
<th>Total solids(%)</th>
<th>pH</th>
<th>P<sub>2</sub>O<sub>5</sub> (% dry wt)</th>
<th>P (% dry wt)</th>
<th>WEP<sup>a</sup>(% of Total P)
</th>
</tr>
<tr>
<td>Leaf / yard wastes</td>
<td>NA</td>
<td>39.4</td>
<td>7.7</td>
<td>0.34</td>
<td>0.15</td>
<td>8.4</td>
</tr>
<tr>
<td rowspan=2>Leaf  / yard wastes  / food</td>
<td>NA</td>
<td>47.5</td>
<td>7.4</td>
<td>0.42</td>
<td>0.18</td>
<td>7.4</td>
</tr>
<tr>
<td>NA</td>
<td>53.9</td>
<td>7.4</td>
<td>0.43</td>
<td>0.19</td>
<td>6.8</td>
</tr>
<tr>
<td rowspan=4>Biosolids / wood chips<sup>2</sup></td>
<td>No P removal</td>
<td>39.8</td>
<td>7.2</td>
<td>0.78</td>
<td>0.34</td>
<td>20.5</td>
</tr>
<tr>
<td>An. digest /No P removal</td>
<td>59.2</td>
<td>7.2</td>
<td>1.87</td>
<td>0.82</td>
<td>7.7</td>
</tr>
<tr>
<td>No P removal</td>
<td>48.1</td>
<td>6.7</td>
<td>1.6</td>
<td>0.7</td>
<td>22.3</td>
</tr>
<tr>
<td>Chemical P removal</td>
<td>38.8</td>
<td>5.5</td>
<td>3.65</td>
<td>1.59</td>
<td>1.8</td>
</tr>
<tr>
<td>Biosolids / wood chips / yard wastes<sup>2</sup></td>
<td>No P removal</td>
<td>72.1</td>
<td>6.6</td>
<td>0.81</td>
<td>0.35</td>
<td>12.2</td>
</tr>
<tr>
<td rowspan=2>Biosolids / yard wastes / WTRb<sup>2</sup></td>
<td>No P removal</td>
<td>53.5</td>
<td>8.3</td>
<td>1.67</td>
<td>0.73</td>
<td>4.6</td>
</tr>
<tr>
<td>No P removal</td>
<td>47.8</td>
<td>7.9</td>
<td>1.68</td>
<td>0.73</td>
<td>4.1</td>
</tr>
<tr>
<td>Leaf / yard wastes / gelatin residuals</td>
<td>NA</td>
<td>51.1</td>
<td>8.3</td>
<td>2.19</td>
<td>0.96</td>
<td>2.0</td>
</tr>
<tr>
<td>Biosolids / wood shavings<sup>2</sup></td>
<td>Biological P removal</td>
<td>42.8</td>
<td>5.7</td>
<td>2.41</td>
<td>1.05</td>
<td>13.3</td>
</tr>
</table>
<font size=1><sup>a</sup>WEP = Water extractable phosphorus, bWTR = water treatment residuals (Source: Phosphorus and Compost Use Dynamics, Alexander, 2016)<br>
<sup>2</sup>Minnesota does not compost biosolids per rule. Only source separated organic matter and yard waste are allowed in compost.</font size>
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