FOREWORD

Cooperating Agencies and Principal Leaders
SAES
                                  Alabama                                                            Florida
                                  Ben F. Hajek*                                                     Willie G. Harris*
                                  Georgia                                                             Kentucky
                                   Kim H. Tan*                                                       Richard I. Barnhisel*
                                                                                                              A.D. Karathanasis
                                  Lousiana                                                            Mississippi
                                  P. Mark Walthall*                                                Victor Nash*
                                  Bob Miller
                                  North Carolina                                                  Oklahoma
                                  Sterling B. Weed*                                                Brian J. Carter*
                                  Stan Buol
                                  South Carolina                                                   Tennessee
                                  Bill R. Smith*                                                         Russel J. Lewis*
                                                                                                                J. Tom Ammons
                                 Texas                                                                     Virginia
                                  Joe B. Dixon*                                                         Lucian W. Zelazny*
National Soil Survey Laboratory, Lincoln, NE
Warren C. Lynn
USDA-NRCS
                                                              Administrative Advisors
                                                                         Eric Young
                                                           North Carolina State University
                                                                    Raleigh, NC 27695
                                                                       Burlie L. Schmidt
                                                                       USDA-CSREES
*Official (voting) member
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Document Prepared by: Ben F. Hajek
bhajek@acesag.auburn.edu
Alabama Agricultural Experiment Station, Auburn University, Alabama 36849