1. K-State home
  2. »Research and Extension
  3. »Riley
  4. »Lawn and Garden
  5. »Soil Testing/Fertilizer

Riley County

Soil Testing and Fertilizers

Soil Test Lab Form - bring one form to the office for each soil sample to be tested.


Soil Testing Lab at KSU


How to Take a Soil Sample


A soil test should be taken prior to planting, then every 3 years if adjustments are recommended from first test. When no adjustments are needed, test every 5 years to monitor nutrient levels.

Soil tests detect shortages of major plant nutrients which affect growth and development of plants. The test doesn't identify or measure insects, soil borne diseases, pesticide residues, or other contaminants. Competition with trees and other plants is often a factor for plant growth which a soil test doesn't address.