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SL357: The Long-term Contribution of Phosphorus from Agricultural Lands to Lake Okeechobee

Figure 1. A schematic diagram showing potential pathways for P loss from a manure-impacted Spodosol. Phosphorus (P) associated with calcium (Ca) and magnesium (Mg) is not held strongly to the soil and therefore can “run away” with water. On the other hand, P associated with iron (Fe) and aluminum (Al) is held very strongly.