Watermelon provides an interesting example of how the phosphorus nutrient balance on the farm has changed over time with changes to production practices and acreage. In this 4-page paper the calculations are described for the export of phosphorus from Florida in the state’s watermelon fruits. Written by George Hochmuth and Jerry Bennett and published by the UF Department of Soil and Water Science, January 2011.
http://edis.ifas.ufl.edu/ss547