Greenhouse (Soilless) Media Testing

This program is designed as a management tool for greenhouse operators using soilless growth media for plant production.

Samples are analyzed for pH, nitrate-nitrogen, ammonium-nitrogen, soluble salts, phosphorus, potassium, calcium, magnesium, sodium, boron, copper, iron, manganese, and zinc using the saturated media extract method with DTPA. The final report includes the analytical results along with an interpretation based on the crop specified.

Service Fees


Fees effective 7/01/12

Soilless Media Kit

Sample Size Required: 1 Quart

Faxing reports (cost per page) $1.00

Submitting Your Sample

Purchase a "Soilless Media kit" from your county Penn State Extension offices, collect your sample, and submit using the form below.