IFAS Extension
Agriculture
About this Publication
This document is SL301, one of a series of the Department of Soil, Water, and Ecosystem Sciences, UF/IFAS Extension. Original publication date June 2009. Revised August 2012 and January 2013. Visit the EDIS website at https://edis.ifas.ufl.edu for the currently supported version of this publication.
Authors
Alan Wright
Specialist
University of Florida
professor emeritus, Department of Soil, Water, and Ecosystem Sciences, UF/IFAS Indian River Research and Education Center, Fort Pierce, FL
Edward Hanlon
professor emeritus, Department of Soil, Water, and Ecosystem Sciences, UF/IFAS Southwest Florida Research and Education Center