Minimum dataset and metadata guidelines for soil-test correlation and calibration research

Nathan A. Slaton, Sarah E. Lyons, Deanna L. Osmond, Sylvie M. Brouder, Steve W. Culman, Gerson Drescher, Luciano C. Gatiboni, John Hoben, Peter J.A. Kleinman, Joshua M. McGrath, Robert O. Miller, Austin Pearce, Amy L. Shober, John T. Spargo, Jeff J. Volenec