Soil Testing

**2024 PAP Accredited Lab for Soil Testing (Performance Assessment Program)

New pricing effective as of April 1, 2022. Please read the Fees Per Analysis PDF below or contact the lab ( if you have questions about fees. 

  • Varies by submission size and analyses selected. 
  • Basic and advanced nutrient analyses of garden and grower-scale submission size are generally completed in 4 - 5 weeks once samples are received in the lab.
  • If you plan to submit a large submission, please contact the lab for more up-to-date turnaround estimates. We can do our best to work with your priority of analyses and send out data on a rolling basis.  

Mail samples AND Soil Submission Form to: 

OSU Soil Health Lab

3017 Ag Life Sciences Bldg

Corvallis, OR 97331 

  • Samples AND Soil Submission Form can be placed in the Submission Drop Box outside of our laboratory door, Agricultural Life Sciences Bldg Room 3079. 
  • Plastic bags, sharpies, and extra submission forms are available if needed. 
  • Drop-off hours are Monday-Friday 9AM - 3PM. 
  • Contact the lab AFTER drop-off to alert lab personnel to check the Submission Drop Box. 
  • Ring the doorbell if you need assistance. 
  • View the All Fees Per Analysis for a full view of all analyses offered or scroll down to see soil-specific analyses. 
  • Pricing is per sample AND varies by submission size
  • A discount is given for submissions of 16+ samples.
  • Turnaround time for RUSH analysis varies by sample submission size. Contact the lab if you'd like to do a RUSH analysis. 
  • Contact the Lab Manager if you'd like to receive a formal quote.  

You MUST contact the lab BEFORE shipping out-of-state samples. We need to confirm whether the samples are coming from an area that is federally regulated by the USDA APHIS program and may pose a biological threat to the soils and plants of our region. 

Soil Packages

*Sample Preparation (grinding, sieving, drying) is an additional $5/sample for all sample submissions. 

Package Contents RUSH Analysis

Price per sample for 1-15 samples

Price per sample for 16+ samples
Western/Eastern OR Basic Nutrient pH, lime req, ammonium-N, nitrate-N, P, K, Mg, Ca, total C and N, organic matter estimate $178.50 $61.00 $50.50
Western/Eastern OR Advanced Nutrient Basic + Mn, Cu, Zn, Fe, B $215.00 $75.50 $62.50
Complete Assessment of Soil Health pH, EC, organic matter estimate, total C and N, nitrate-N, P, K, Mg, Ca, texture, potentially mineralizable nitrogen, active carbon, wet aggregate stability, microbial respiration   $141.50 $128.50
Basic Soil Health Assessment pH, texture, total C and N, organic matter estimate, wet aggregate stability, respiration   $85.00 $81.50
Soil Microbial Assessment microbial biomass, microbial respiration, active carbon, B-glucosidase activity   $90.00 $76.00
Soil Physical Assessment Texture, wet aggregate stability, moisture   $65.50 $61.00
Heavy-Metal Analysis Total As, Cd, Cr, Cu, Ni, Pb, Zn $119.50 $36.00 $28.50

Individual Soil Analyses

*Sample Preparation (grinding, sieving, drying) is an additional $5/sample for submissions of 16+ samples. 

Chemical Properties

Analysis Description RUSH Pricing per sample Price per sample for 1-15 samples Price per sample for 16+ samples
pH acidity or alkalinity of soil $10.00 $7.00 $7.00
Lime requirement-Sikora buffer Buffer pH $17.50 $6.50 $5.50
Electrical conductivity (EC) conductivity of soil salts in solution $10.00 $7.00 $7.00
pH+EC   $15.00 $9.00 $8.50
Extraction-simple soil Varies by nutrient and often needs an additional analysis (colorimetric or ICP) $19.00 $9.50 $9.00
Plant available Phosphorus (PO4-P) Colorimetric analysis for Bray+Olsen extractions $35.50 $13.00 $11.50
Plant available Ammonium (NH4-N) Colorimetric analysis for KCl extractions $30.50 $8.00 $6.00
Plant available Nitrate (NO3-N) Colorimetric analysis for KCl extractions $29.50 $7.00 $5.00
NH4-N + NO3-N   $59.50 $15.00 $10.50
Elemental analysis by ICP-OES  Determination of elemental concentrations $100.00 $22.50 $15.50
Total Carbon and Nitrogen Total CN and organic matter estimate by Elementar $34.00 $22.50 $21.00
Potential Cation exchange capacity  Exchangeable acid + base cations   $61.00 $58.50
Effective Cation Exchange Capacity Exchangeable base cations $86.00 $24.50 $18.50
Microwave digestion Nitric acid digestion for total elements $20.00 $14.50 $14.00


Analysis Description RUSH Pricing per sample Price per sample for 1-15 samples Price per sample for 16+samples
Organic matter  Loss-on-ignition $12.00 $8.50 $8.50
Active Carbon Involved in nutrient cycling and defense $27.00 $16.00 $15.00
Microbial biomass Bulk biomass of soil microbial community   $36.50 $31.00
Microbial respiration CO2 release over 96-hour incubation   $13.50 $13.50
Potentially mineralizable nitrogen (7-day) N mineralization after 7-day incubation   $17.00 $16.00
Potentially mineralizable nitrogen (28-day) N mineralization after 28-day incubation   $16.00 $14.50
B-glucosidase enzyme  Microbial activity indicator   $26.00 $18.00
ACE Protein Microbial activity indicator   $12.50 $12.50


Analysis Description RUSH Pricing per sample Price per sample for 1-15 samples Price per sample for 16+samples
Bulk Density Requires submission of sample with known volume $3.00 $3.00 $3.00
Texture by Hydrometer % sand, silt, clay $25.50 $17.00 $16.00
Texture by Sieve & Pipette More sand + silt fractions that hydrometer method   $43.00 $40.50
Water Stable Aggregates Aggregate stability after rain simulation $51.50 $36.50 $35.50
Moisture Release Curves Soil moisture release measured by HYPROP   $128.00 $123.00
*Available Water Holding Capacity delayed until further notice.