Changes

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![[Organic matter]] (OM)

![[Organic matter]] (OM)

|5 - 10 %||ASTM D2974-14, Standard test methods for moisture, ash and organic matter of peat and other organic soils.

|5 - 10 %||ASTM F1647-11, Standard test methods for organic matter content of athletic field rootzone mixes.

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![[Phosphorus]]

![[Phosphorus]]

|12 - 40 ppm||As measured by the 'Olsen' method. Alternatives include 'Mehlich I or III', or 'Bray'. Results from these are not directly translatable.<ref>Sawyer JE, Mallarino AP. Differentiating and Understanding the Mehlich 3, Bray, and Olsen Soil Phosphorus Tests 1. http://www.agronext.iastate.edu/soilfertility/info/mnconf11_22_99.pdf. Accessed August 1, 2017.</ref>

|12 - 40 ppm||As measured by the 'Olsen' method for alkaline and calcareous soils (common in Ontario). Alternatives include 'Mehlich I or III', or 'Bray', better suited to acidic to slightly alkaline and non-calcareous soils. Results from these are not directly translatable.<ref>Sawyer JE, Mallarino AP. Differentiating and Understanding the Mehlich 3, Bray, and Olsen Soil Phosphorus Tests 1. http://www.agronext.iastate.edu/soilfertility/info/mnconf11_22_99.pdf. Accessed August 1, 2017.</ref>

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![[Cationic exchange capacity(CEC)]]

![[Cationic exchange capacity(CEC)]]

|10 meq/100 g||ASTM D7503-10, Standard test method for measuring the exchange complex and cation exchange capacity of inorganic fine grained soils.  

|10 meq/100 g||ASTM D7503-10, Standard test methods for measuring the exchange complex and cation exchange capacity of inorganic fine grained soils.  

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![[Hydraulic conductivity]]

![[Hydraulic conductivity]]