The Mehlich-3 Phosphorus soil test was developed in the SE region of the US. It uses a number of acids to extract the soil phosphorus whereas the Bray-1 test uses weak HCl and the Olsen test uses sodium bicarbonate (baking soda).
Browse all of our tests here.VIEW TESTS
We’ve compiled here a list of resources that might interest you based on your specific search.
When determining herbicide rates, remember that only those herbicide molecules dissolved in soil solution are available for control of weeds.READ MORE
Create an account and learn to submit a sample using the MyLab PortalREAD MORE
Interpreting Soil Analysis is one of Midwest Laboratories' most popular publications. This brochure will walk the reader through how to read the soil test. We explain the individual analysis and calculations. We also discuss the desired levels of different nutrients and soil properties.READ MORE