The 2021 93rd Iowa State University Soil Management and Land Valuation conference will be held virtually on Wednesday May 19th, 2021.
This will be a one-time conference and the following speakers are guest instructors.  A short bio is provided for each of the instructor to justify their qualification:


Wendong Zhang: an assistant professor of Economics at Iowa State University with a Ph.D. in agricultural, environmental and development economics from the Ohio State University. Dr. Zhang is the leading researcher of the annual Iowa Land Value Survey, the Iowa Farmland Ownership and Tenure Survey, and the ISU Soil Management and Land Valuation conference.



Joe Shultz: Majority Staff Director at U.S. Senate Committee on Agriculture, Nutrition and Forestry. Shultz has served the Senate Ag Committee as Chief Economist for Senator Debbie Steabenow since 2011, In that capacity he led the Committee’s work on commodity programs, crop insurance, the federal budget, and global food security. Prior to joining the Committee, Shultz worked for U.S. Senator Sherrod Brown (D-OH) where he served as a primary advisor on issues related to agriculture, energy, and the environment. Shultz grew up on a fourth generation family farm in western Ohio where he continues to play an active management role. Shultz served as Vice-President of the National FFA (Future Farmers of America) and earned his bachelor’s degree in agricultural economics from Ohio State University and his master’s degree in applied economics from Cornell University.

Martha Scott Poindexter: Martha Scott Poindexter is the Minority Staff Director of the US Senate Committee on Agriculture, Forestry, and Nutrition for the Ranking Member, Senator John Boozman (AR) in the 117th Congress.

For over 20 years, Martha Scott has worked at the Senate, including on three US Senate committees. She served for the former US Senator Thad Cochran (MS) on the agriculture appropriations committee and as Majority and Minority Staff Director of the Senate agriculture committee for was named the Staff Director for the US Senate Select Committee on Intelligence.

She is the first female to lead both the agriculture and intelligence committees. Martha Scott has been a key Congressional staffer in writing numerous farm bills and other significant legislation in agriculture, nutrition and intelligence.

Off Capitol Hill, Martha Scott spent time in government affairs for private industry. She worked for the company now called Bayer (formerly Monsanto) and was the Vice President of Government Affairs for Bunge.

She currently lives in Alexandria, VA with her husband. Martha Scott came to Washington, DC after graduating from Mississippi State University to work for Senator Cochran on the 1990 farm bill. Martha Scott grew up in the Mississippi Delta on a cotton, rice and soybean farm.

Amanda Bahn-Ziegler: Amanda Bahn-Ziegler is an Account Manager at Truterra LLC, the sustainability business of Land O’ Lakes. Within her role at Truterra Amanda has been a leader in representing the new TruCarbon Program since its launch in January 2021. Before joining Truterra Amanda spent 7 years with WinField United in Ohio, where she represented a product portfolio including ag technology, seed, and plant nutrition. She has a Bachelor’s Degree in Agricultural Studies from University of Wisconsin – River Falls in 2013.


Brian Waddingham: Waddingham directs the Coalition’s work in helping farmers follow all rules and regulations, choose good locations for new farms, strengthen neighbor relations and safeguard air and water quality. Prior to his work with the Coalition, Waddingham served 9 years with the Iowa Beef Industry Council as the Director of Industry Relations. He worked in the areas of producer communication, checkoff collection and compliance, coordination of research projects and the development and execution of the Beef Quality Assurance program. He also served as the Agriculture and FFA instructor at Baxter High School located in central Iowa. He is a native of Klemme, Iowa, with a degree in agriculture education from Iowa State University.


Chip Flory: Chip joined Pro Farmer in January 1988 as a floor reporter for Futures World News after graduating from Iowa State University with a degree in Ag Journalism. He spent 3 years in Chicago reporting from the floors of the Chicago Board of Trade and the Chicago Mercantile Exchange as Bureau Chief for FWN. Chip moved to the Pro Farmer headquarters in April 1991 where he started as Electronic Services Editor. With Pro Farmer, he has been Sr. Market Analyst, Editorial Director and General Manager.Chip took over as Pro Farmer Newsletter Editor in May 1997 and had Publisher added to his title in November 1999.


Eric Snodgrass: Eric Snodgrass is the Principal Atmospheric Scientist for Nutrien Ag Solutions, where he develops predictive, analytical software solutions to manage weather risk for global production agriculture. Before transitioning to Nutrien Ag Solutions, Eris was the Director of Undergraduate Studies for the Department of Atmospheric Sciences at the University of Illinois at Urbana-Champaign from 2006-2018. Each year, he guided over 1800 students through the wild side of weather in ATMS 120: Severe and Hazardous Weather.


Troy Louwagie: Troy joined the Mount Vernon office of Hertz Farm Management in November 1999. Troy is an active member of several organizations, including the Iowa and National Association of REALTORS®, and the Iowa and National REALTORS® Land Institute, where he served as the 2005-2006 State President. Troy currently serves as the RLI Iowa Chapter Treasurer. He is also a member of the American Society of Farm Managers and Rural Appraisers and the Cedar Rapids and Iowa City Boards of Realtors. In 2005, Troy earned the Accredited Land Consultant Designation from the Realtors Land Institute.

Prior to joining Hertz, Troy served as an Agricultural Loan Officer at Farmers & Merchants Savings Bank in Manchester, Iowa for nearly six years. Troy grew up on a livestock farm in northwest Iowa. His history of agricultural leadership includes the Iowa FFA degree and active participation in 4-H. He has served on numerous committees of St. John’s Catholic Church in Mount Vernon. Troy and his wife Tracey have four children.

Dennis Reyman: Dennis was raised on a grain and livestock “century” farm near Cushing in Woodbury County, Iowa. He received a degree in Farm Management from Iowa Lakes Community College in 1979 and a degree in Business and Economics from Morningside College in 1992. He farmed and worked in the fertilizer and feed business prior to joining Stalcup Agricultural Service in 1993 as a farm real estate appraiser. He currently serves as company treasurer. He has appraised over 3,000 agricultural properties throughout Northwest Iowa and the surrounding areas and manages farms in twelve counties in Western Iowa and Northeast Nebraska, along with real estate services. Dennis led Stalcup’s GIS and soil sampling program from 2000 to 2009. Dennis earned his ARA designation in 1998 and his AFM designation in 2001. He served on the Iowa Chapter Board of Directors, including Chapter President in 2009 and Education Foundation President in 2010 and also served on state and national committees. From 2008-2019, Dennis served as co-chair of the ASFMRA’s Government Relations Committee and helped lead their annual Leadership Institute in Washington DC. He is currently President of the ASFMRA. He is a member of the Siouxland Estate Planning Council and has served on the Woodbury County Extension council as well as local elevator and church boards.

Adam Thien: Adam Thien graduated from Iowa State University in 2002, with a degree in horticultural. After graduation he managed golf course maintenance operations in New Hampshire and Arizona. In 2005 Adam returned to Council Bluffs, IA to work at his family’s farm management, appraisal, and real estate business, Thien Farm Management. Since returning Adam has received his Accredited Farm Manager designation from the ASFMRA, is a licensed real estate sales person in Iowa and Nebraska, and is a certified general appraiser in the state of Iowa.


Kristine Tidgren: Kristine is an adjunct assistant professor in the Agricultural Education & Studies Department and the director for the Center for Agricultural Law and Taxation. Kristine’s work focuses on studying and interpreting laws impacting the agricultural industry. In particular, she focuses on agricultural taxation.

Since joining CALT in 2013, Kristine has written hundreds of articles and blogposts to keep tax professionals, practicing attorneys, producers, and agribusiness professionals informed about legal developments impacting their business. She also writes technical chapters for the National Income Tax Workbook and regular articles for farm publications. In addition to her writing, Kristine speaks to many professionals and producers each year regarding tax and agricultural law topics. She also plans and provides instruction for CALT-hosted seminars, including the annual federal income tax schools and Iowa and Wisconsin.