Changes

<p>Plants (including algae) require three macro nutrients to grow: Nitrogen, potassium, and phosphorous.  Of these three, phosphorous is the often the "growth-limiting" nutrient. i.e. the local environment may have an abundance of nitrogen and potassium, but algae won't develop unless phosphorous is available too. </p>

<p>Plants (including algae) require three macro nutrients to grow: Nitrogen, potassium, and phosphorous.  Of these three, phosphorous is the often the "growth-limiting" nutrient. i.e. the local environment may have an abundance of nitrogen and potassium, but algae won't develop unless phosphorous is available too. </p>

<p> Major sources of man-made phosphorous in the environment include agricultural fertilizers...</p>

<p> Major sources of man-made phosphorous in the environment include agricultural fertilizers...</p>

<p>Compost is a commonly used source of organic material in the [[Engineered Soil|engineered soils]] used in many LID. The phosphorous content of composted materials varies hugely depending upon the material used and the method of production.</p>  

<p>Compost is a commonly used source of organic material in the engineered soils used in many LID. The phosphorous content of composted materials varies hugely depending upon the material used and the method of production.</p>  

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