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![[Organic matter]] (OM)
![[Organic matter]] (OM)
|5 - 10 %||ASTM F1647-11, Standard test methods for organic matter content of athletic field rootzone mixes.
|5 - 10 %||ASTM F1647, Standard test methods for organic matter content of athletic field rootzone mixes.
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![[Phosphorus]]
![[Phosphorus]]