Soilless Media Analysis
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Kristin A. Hicks, Ph.D., Section Chief
Kristin.hicks@ncagr.gov (919) 664-1603 |
Don Edralin, Ph.D. Agronomist
don.edralin@ncagr.gov 919-664-1604 |
Media analysis (using the saturated media extract procedure) helps growers fine-tune their fertilization programs for container crops grown in soilless media by enabling them to monitor changes in electrical conductivity, pH and nutrient levels. |
Choose Your Tests |
Standard Analysis: nitrate-nitrogen, ammonium-nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, sodium, chloride, iron, zinc, manganese, copper, boron, aluminum, pH and electrical conductivity/soluble salts. |
|
In-State Grower Sample |
$5.00 * |
In-State Research Sample |
$12.00 ** |
Out-of-State Grower or Research Sample |
$25.00 ** |
Optional Tests |
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Molybdenum (Mo) |
$2.00 |
Bulk Density (BD) See Bulk Density sampling Quick Guide |
$10.00 |
*Samples qualify for the in-state rate if they originated in North Carolina.
**Research samples: additional form required. See “Submit a Sample” section.
Collect a Sample |
Sample Turnaround Times
Soilless Media Analysis Guide
Water and Media Testing for Greenhouse Managers
Bulk Density Testing for Nursery & Greenhouse Managers
Sample containers are not provided by NCDA&CS. Submit 1–2 quarts of a representative sample in a sealed plastic bag.
Submit a Sample |
Soilless Media Sample Submission Form (Grower)
Soilless Media Sample Submission Form (Research)
NCDA Sample ID Spreadsheet
Research samples require an annual research agreement prior to submission.
Find Your Report |
Once a report is released, you will receive an email notification with a link to your report on the PALS website. You may also search for your report online under your name at
How to retrieve your report on PALS - Video tutorial
Understand Your Report |
Understanding the Soilless Media Report
Useful References |
NCDA&CS Soilless Media Methods
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Many of the publications accessible from this page are published in Adobe Acrobat (PDF) format. Click here to download a free copy of Adobe Acrobat reader. |
