Biological Soil Test

Understand Your Soil Food Web

biological soil test

**All biological soil tests come with a descriptive document called “Biological Soil Test Interpretation Notes.”**

*NEW* Quick Check Soil Microbial Analysis

Our Quick Check Assessment offers a fast, affordable look at your soil’s biological activity. We scan a sample to detect key organisms like fungi, protozoa, and nematodes. Results are reported using a simple scale — None, Low, Medium, or High — giving you clear insights without the time or cost of a full analysis. Perfect for routine check-ins or getting started with soil biology!
 
$20 per sample

Quick Check Biological Soil Test Results Example

Full Soil Microbial Analysis

Our Full Assessment provides a detailed, microscope-based analysis of your soil’s biological health. We examine and count a full sample to qualitatively assess the types and approximate biomass or abundance of key soil organisms — including bacteria, fungi, protozoa, and nematodes. This service offers valuable insights into your soil food web and ecosystem function, helping you target your soil management for long-term health and productivity.

 

Available for soil, compost, and liquid amendments, this test is ideal for baseline evaluations, amendment planning, and tracking progress over time.

 
$65 per sample

Full Test Biological Soil Test Results Example

Biological Soil Test FAQs

Q: What is a biological soil test, and why is it important?

A: A biological soil test analyzes the microorganisms in your soil, such as bacteria, fungi, protozoa, and nematodes. These organisms are essential for nutrient cycling and plant health. Understanding your soil’s food web helps you optimize fertility and sustainability.


 

Q: How do I properly collect a soil sample for the test?

A: To ensure accuracy, follow our soil sampling protocol.


 

Q: Will the soil test include chemical nutrient analysis and mineral soil balancing?

A: While the focus of the biological soil test is on biological activity, we are in the process of learning how to perform soil nutrient balancing and hope to offer additional testing and analysis in the future. Combining both tests can give a full picture of your soil’s health.

Mineral Soil Balancing

Optimize Your Soil with Precision Mineral Balancing.
Restore Nutrient Harmony for Thriving Plants and Landscapes.

Achieve healthier soil and stronger plant growth with our expert soil mineral balancing services. We analyze your soil’s unique needs and apply the right minerals to correct imbalances, improving soil structure, fertility, and resilience. We make sure to only use USDA Certified Organic approved minerals AND to keep the soil microbiology in mind when working on your land. Choose from our analysis-only option or let us handle the full application for a hassle-free, long-term soil health solution.

Submit your own soil sample to Logan Labs. This is called a chemical soil test as opposed to a biological soil test. For a soil-paste-water trio of tests, the cost is around $112 plus shipping. (More information can be found here.) For many situations, it is best to select “complete test w/extras and water suitability test.” 

Service                     Price
Analysis of Test$75
Analysis Plus Application                                                                                       Variable, depending on the
area of land and quantity of
amendments needed