Phosphate mineral weathering by carboxylic acids is driven by functional group composition and orientation July 2, 2026
Phosphate mineral weathering by carboxylic acids is driven by functional group composition and orientation July 2, 2026
HomePublicationsCrops & SoilsIssuesCrops Soils: Volume 53, Issue 3 Newly certified May 7, 2020 The following list includes newly certified individuals and those who have added additional certifications since the last issue of Crops & Soils magazineCanadaAlbertaHaddow, Cal, Lloydminster, AB (CCA-PP)ManitobaWoo, Eojinsol, Portage La Prairie, MB (CCA-PP, 4R NMS)OntarioAlbrecht, Christopher, Wellesley, ON (CCA-ON, 4R NMS)Black, Wayne, Sunderland, ON (CCA-ON, 4R NMS)Colville, Brian, Woodville, ON (CCA-ON, 4R NMS)Doelman, Sarah, Seaforth, ON (CCA-ON, 4R NMS)Goetheyn, Allison, Dresden, ON (CCA-PP, CCA-ON)Griffiths, Kathleen, Kitchener, ON (CCA-ON, 4R NMS, RMS)McQueen, Steven, Brownsville, ON (CCA-ON, 4R NMS)Migchels, Jason, Watford, ON (CCA-ON, 4R NMS)Miller, Robert, Guelph, ON (CCA-ON, RMS)O’Connor, Kelly, London, ON (CCA-ON, 4R NMS)Otten, Nicholas, Tillsonburg, ON (CCA-ON, 4R NMS)Sabelli, Tyler, Leamington, ON (CCA-ON, 4R NMS)Sangers, Kaylene, Dublin, ON (CCA-ON, 4R NMS)Schapelhouman, Benjamin, New Liskeard, ON (CCA-ON, 4R NMS)Snowe, Scott, Arthur, ON (CCA-ON, 4R NMS)Thompson, Jordan, Caledon, ON (CCA-ON, 4R NMS)Van Stryland, Wilhelmina, Chatham, ON (CCA-ON, 4R NMS, RMS)SaskatchewanGee, Kendall, Radville, SK (CCA-PP, 4R NMS)Jolly, Amanda, Unity, SK (CCA-PP)Neumeier, Carleen, Unity, SK (CCA-PP)Tomcala, Gregory, Saskatoon, SK (CCA-PP)Willenborg, Errin, Saskatoon, SK (CCA-PP)United StatesArizonaHardin, Samantha, Yuma, AZ (CCA-WR)Wyant, Karl, Tempe, AZ (CCA-WR, CPAg, CST, SSp)CaliforniaAnderson, Steven, Yuba City, CA (CCA-WR)Charles, Caulen, Sacramento, CA (CCA-WR)DeVaney, Jeffrey, Corcoran, CA (CCA-WR, CPAg, SSp, PASp)Etcheverry, Raymond Francis, Bakersfield, CA (CCA-WR, SSp)Flanders, Raymond, Newman, CA (CCA-WR, SSp)Grangetto, Edward, Escondido, CA (CCA-WR, SSp)Hayslett, Justin, Bakersfield, CA (CCA-WR, SSp)Hight, Christopher, Santa Maria, CA (CCA-WR, SSp, PASp)Jordan, Lindsay, Carmel, CA (CCA-WR)Kaupp, Rebecca, Spreckels, CA (CCA-WR)Kiefer, Frank, Anahaim, CA (CCA-WR)Maestas, Raymond, Reedley, CA (CCA-WR)McAbee, Kyle, Santa Margarita, CA (CCA-WR, SSp)McCarthy, Johnathon, Calistoga, CA (CCA-WR, CPAg, SSp)Mendez, Jorge, Soledad, CA (CCA-WR)Muro, Heriberto, Oxnard, CA (CCA-WR)Peterson, Steve, Orland, CA (CCA-WR)Pooler, Eric, Sonoma, CA (CCA-WR, CPAg, SSp, PASp)Scurich, Justin, Royal Oaks, CA (CCA-WR, SSp, PASp)Simas, Richard, Hanford, CA (CCA-WR)Tung, Ranvir, Fowler, CA (CCA-WR)Welch, Scott, Geyserville, CA (CCA-WR, SSp)FloridaAustin, Laine, Daum, FL (CCA-FL)Dailey, Tasha, Sarasota, FL (CPSS)GeorgiaHolt, Charles, Taylorsville, GA (CCA-SE)Payne, Wesley, Fort Valley, GA (CCA-SE)Randell, Allison, Tifton, GA (CCA-SE)IllinoisBloemker, Craig, Arcola, IL (CCA-IL, 4R NMS)Boehlje, Wendall, Chicago, IL (CCA-IA)Collard, Joseph, Kinderhook, IL (CCA-IL, SSp)Dahlke, Brian, Ivesdale, IL (CCA-IL, SSp)Dexter, Adam, Galva, IL (CCA-IL, 4R NMS, RMS)Harper, Clayton, Lexington, IL (CCA-IL, 4R NMS, PASp)Schabacker, Kevin, Princeton, IL (CCA-IL, SSp)Snyder, Ryan, Gibson City, IL (CCA-IL, 4R NMS)Spack, Brent, Arrowsmith, IL (CCA-IL, 4R NMS)Swenson, Stefan, Naperville, IL (CCA-IA)IndianaBoomsma, Christopher, Crown Point, IN (CCA-IN, CPAg, SSp, PASp)Bower, Elizabeth, Lafayette, IN (CCA-IN, 4R NMS, SSp)Brauser, Ryan, Mount Vernon, IN (CCA-IN, PASp)Campbell, Casey, Shelbyville, IN (CCA-IN, RMS)Childress, David, Newburgh, IN (CCA-IN, 4R NMS)DuMond, Roger, Greensburg, IN (CCA-IN, PASp)Heeb, Joshua, Hartsville, IN (CCA-IN, 4R NMS, SSp, RMS)Misch, Cassandra, Wheatfield, IN (CCA-IN, PASp)IowaBranderhorst, Alex, Pella, IA (CCA-IA)Dahlhauser, Ethan, Whittemore, IA (CCA-IA)Den Herder, Aric, Sioux Center, IA (CCA-IA)Hamilton, Danielle, Nevada, IA (CCA-IA, PASp)Jaschen, Jonathan, Johnston, IA (CCA-IA)Swieter, Robbie, Ames, IA (CCA-IA, 4R NMS, PASp)Van Drie, Cody, Sheldon, IA (CCA-IA, 4R NMS, SSp, RMS, PASp)KansasDunlop, Cordell, Parker, KS (CCA-KS)James, Mr., Yates, KS (CCA-KS, SSp)Machicek, Joshua, Garden City, KS (CCA-TX, PASp)Noah, Mr., Goza, KS (CCA-KS, SSp)Theodore, Mr., Hinton, KS (CCA-KS, SSp)Zeller, Chord, Windom, KS (CCA-KS)MaineJemison, John, Orono, ME (CCA-NR, CPAg)MichiganCostanza, Lucas, Benton Harbor, MI (CCA-MI, 4R NMS, PASp)Monville, Justin, Bay City, MI (CCA-MI)Pullis, John, Richville, MI (CCA-MI, PASp)Schiltz, James, Imlay City, MI (CCA-MI)MinnesotaHaubrich, Gregory, Renville, MN (CCA-MN, PASp)Kramer, Anthony, Barnesville, MN (CCA-MN, PASp)Larson, Alexis, Madelia, MN (CCA-MN)Maurer, Jacob, Moorhead, MN (CCA-MN, PASp)Mellgren, Samuel, Minneapolis, MN (CCA-MN)Schroeder, Macius, Renville, MN (CCA-MN)Schwendemann, Jake, Benson, MN (CCA-MN)Trcka, Paul, Rochester, MN (CCA-MN, CPAg, 4R NMS)Vagle, Daniel, Lancaster, MN (CCA-MN, SSp)MississippiCrawford, Michael, Brandon, MS (CCA-MS, PASp)MissouriHeiser, James, Portageville, MO (CCA-MO, RMS)Hogan, Eric, Labelle, MO (CCA-MO, 4R NMS, SSp, RMS)Hunziker, Stephen, Knox City, MO (CCA-MO, PASp)Martin, Heidi, Thompson, MO (CCA-MO, 4R NMS, SSp, RMS)Stone, Hunter, Kansas City, MO (CCA-CO, PASp)Widmar, Aaron, Joplin, MO (CCA-MO, 4R NMS, RMS)MontanaBrooks, Nathan, Great Falls, MT (CCA-RM)Gardner, Amy, Kalispell, MT (CCA-RM, PASp)Good, Charles, Carter, MT (CCA-RM)Guenthner, Christian, Billings, MT (CCA-RM)Pawlowski, Michael, Circle, MT (CCA-RM)Smelser, Spencer, Three Forks, MT (CCA-RM)Worthington, Benjamin, Dillon, MT (CCA-RM)Zinne, Tyler, Billings, MT (CCA-RM)NebraskaKeith, Mr., Byerly, NE (CCA-NE, SSp)Thomas, Robert, Norfolk, NE (CCA-NE, PASp)New YorkBenedict, Timothy, Piffard, NY (CCA-NR, PASp)Harris, Taylor, Owego, NY (CCA-NR, 4R NMS)Rathbun, Jacob, Naples, NY (CCA-NR)Redman, Kyle, Fillmore, NY (CCA-NR)North CarolinaBradish, Christine, Merry Hill, NC (CCA-NC)Caldwell, Keith, Newton, NC (CCA-NC, 4R NMS, RMS, PASp)Check, Alec, Winterville, NC (CCA-NC)North DakotaBreker, John, Northwood, ND (CCA-ND, 4R NMS)Langseth, Chandra, Wahpeton, ND (CCA-ND, RMS)Sip, Adam, Ayr, ND (CCA-ND)OhioBroerman, Taylor, Fort Loramie, OH (CCA-OH)Chandler, Nathaniel, Hamersville, OH (CCA-OH, RMS)Cunningham, David, Montpelier, OH (CCA-OH, 4R NMS)Krugh, Benjamin, Van Wert, OH (CCA-OH, PASp)Liskai, Bryan, Clyde, OH (CCA-OH, PASp)Miller, Charlie, South Charleston, OH (CCA-OH)Miller, Jordan, Fredericktown, OH (CCA-OH, 4R NMS)Troyer, Brian, Continental, OH (CCA-OH, 4R NMS, PASp)Troyer, Brian, Continental, OH (CCA-OH, 4R NMS, PASp)Young, Charles, Findlay, OH (CCA-OH)PennsylvaniaHushon, Timothy, Stewartstown, PA (CCA-PA, PASp)Hykes, Nathan, Greencastle, PA (CCA-PA, 4R NMS)South CarolinaLavender, Edward, New Zion, SC (CCA-SC)South DakotaHorstman, Joshua, Canistota, SD (CCA-SD, PASp)Klein, Matthew, Stickney, SD (CCA-SD, PASp)Martinmaas, Tyson, Orient, SD (CCA-SD, 4R NMS)TennesseeAustin, Julia, Jonesborough, TN (CCA-TN, PASp)TexasCimino, Matthew, Georgetown, TX (CCA-TX, RMS)VirginiaRector, Lucas, Ivor, VA (CCA-CB)WashingtonRaymond, Mark, Sumas, WA (CCA-NW, CCA-PP, 4R NMS)WisconsinBretl, Michael, Wisconsin Rapids, WI (CCA-WI, SSp)Govin, Kyle, Elk Mound, WI (CCA-WI, 4R NMS)Guyer, Samuel, Mosinee, WI (CCA-WI, PASp)Seevers, James, Patch Grove, WI (CCA-IA)WyomingJones, Porter, Otto, WY (CCA-RM)Text © . The authors. CC BY-NC-ND 4.0. Except where otherwise noted, images are subject to copyright. Any reuse without express permission from the copyright owner is prohibited.Share this: Related articles Phosphate mineral weathering by carboxylic acids is driven by functional group composition and orientation July 2, 2026 USEPA launches innovation challenge to advance alternatives to crop desiccants July 2, 2026 Horton receives 2026 Dokuchaev Award July 1, 2026 Recent articles Storage of soil carbon in the Carolinas June 30, 2026 CCA exam registration open July 1–27 June 29, 2026 Senate releases farm bill draft as emergency aid proposal emerges June 29, 2026
Phosphate mineral weathering by carboxylic acids is driven by functional group composition and orientation July 2, 2026