Hackman, Gene2011-11-222011-11-221911https://hdl.handle.net/1808/845826 pagesen-USThis work is in the public domain according to U.S. copyright law and is available for users to copy, use, and redistribute in part or in whole. No known restrictions apply to the work.A Study of Methods for the Determination of Potassium in FertilizerUndergraduate research projectopenAccess