How to Calculate Soil Solution Concentration

Testing Soil Yourself

• 1

  Collect the soil you wish to test. Obtain a cross section of the soil profile by collecting a small slice of soil 6 to 8 inches deep from multiple locations within the area you wish to test. Collect with a clean trowel or shovel and place samples into a clean bucket.

• 2

  Mix the soil samples together and place the mixture into a container with drainage holes in the bottom.

• 3

  Place filter media such as a coffee filter over the top of a container. Place the pot with the soil sample over the top of the container with the filter media.

• 4

  Add a small amount of distilled water to the sample until it is fully saturated and is leaching through the bottom of the sample and into the filter media.

• 5

  Set aside the soil sample and use the soil meter or test kit to analyze the solution of soil leachate in the container.

• 6

  Continue testing the solution for the various criteria such as pH, electrical conductivity and nutrient values depending on the complexity of the kit or equipment you are using.

• 7

  Assess the data obtained based on ideal values and amend the soil accordingly. Your local extension service or horticulture professional can assist in analyzing the collected data and prescribe a course of action if remediation is required.

Preparing a Sample for Professional Evaluation

• 8

  Contact the lab that will analyze your soil. It may send you a bag or container to place your sample in and may have specific criteria for collection.

• 9

  Collect soil samples as per instructions. Mail them or deliver them to the lab for testing.

• 10

  Review the results. If they are difficult to understand, a professional horticulturist or your local cooperative extension service can assist in explaining the data to you.