Changes

[[File:Phosphorus Cycle copy.jpg|thumb|Phosphorus Cycle from Wikimedia Commons]]

[[File:Phosphorus Cycle copy.jpg|thumb|Phosphorus Cycle from Wikimedia Commons]]

{{TOClimit|2}}

{{TOClimit|2}}

 

==Limiting excess phosphorus==  

==Limiting excess phosphorus==  

===Volume reduction===

===Volume reduction===