Iowa State University Soil and Plant Analysis Laboratory (SPAL) is part of the Department of Agronomy in the College of Agriculture at Iowa State University. We provide soil, plant, water and environmental testing services to farmers, fruit and vegetable growers, landscape managers, home gardeners, researchers, etc. in the State of Iowa and to researchers across the nation. The lab provides cost-effective analytical testing and research-based limestone and fertilizer recommendations to support sustainable management decisions. We proudly serve as a teaching laboratory for several Department of Agronomy classes.
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- Internationally (various countries)
Iowa State is an international university with a friendly welcoming personality. Students from all 50 states and more than 100 countries come to Ames, Iowa, to choose from 100 majors, study with world-class scholars and hone their leadership skills in 800-plus student organizations. Iowa State offers a great environment where students can enjoy reaching their potential and discovering their passions.
All orders for Soil, Plant Tissue, Compost and/or Greenhouse Media testing must be accompanied with payment. For purchase orders please contact the lab. All other orders must be accompanied with a check made out for the total amount payable to ISU Soil and Plant Analysis Laboratory. When samples are received without payment, lab personnel will contact customers in order to collect payment.