University of Missouri Soil Testing Program
The University of Missouri Soil Test lab handles from 35,000 to 40,000 samples per year from producers, homeowners and industry. The lab also conducts soil, plant, water, manure, compost, environmental and nutrient fertilizer tests.The primary functions of soil testing are to determine if soil pH is in the range for best crop growth and if phosphorus and potassium are at adequate levels for growth.Research calibration data is used to determine adequate soil test levels of phosphorus and potassium for crop and forages.