Take the guesswork out of growing. Our soil tests and calculator give you a clear picture of what's happening below the surface, helping you understand nutrient levels, soil biology, and amendment needs. Get detailed recommendations and a soil action plan.
Enter soil test values, site information, and choose the soil test method used by the lab, then calculate nutrient needs, products, and application rates. This tool uses different optimal ranges based on which test methodology is used.
Important: ppm values are interpreted differently depending on the test. MySoil-style available nutrient ranges are not interchangeable with Mehlich-3 ranges (often used by Extension).
Enter results in ppm unless your report specifically uses another unit. Leave blank if not tested.
Farms, nonprofits, schools, government entities, and other qualifying purchasers should apply before checkout. Tax exemption must be approved before it can apply to your purchase.