Soil Tests - Organic Matter & Micronutrients

TEST 1: Organic Matter (OM) is determined in the lab using the Loss on Ignition (LOI) method. It is reported in % of weight. Monitoring changes in soil organic matter should be of interest for all farmers wanting to improve crop productivity on their farms. TEST 2: The Micronutrient test uses the M3 extraction method. Elements included in this package are Aluminum (Al), Copper (Cu), Iron (Fe), Manganese (Mn), Sodium (Na), Nickel (Ni) and Zinc (Zn). Results are provided in parts per million. For additional information use this link: https://store.extension.iastate.edu/product/14823