A liming material is used to bring the pH of a soil to optimum levels for crop production if used properly. Liming materials also provide calcium (Ca) and/or magnesium (Mg) to the soil for plant uptake. Materials that can cause an increase in pH include carbonates, oxides or hydroxides of calcium and magnesium. Quality standards, such as calcium carbonate equivalence (CCE) and fineness (particle size), are used to determine the effectiveness of the liming materials.
Limestone analysis test includes: Particle size analysis as per Iowa code and determination of Calcium Carbonate Equivalence and moisture content. Standard Operating Procedure - Limestone analysis
The Soil and Plant Analysis Laboratory is certified by Iowa Department of Agriculture and Land StewardshipSubmission form and Information sheet