We Have Moved to a New Location!
Effective May 13, 2026, please drop off or send your samples to our new location.
New Location (starting May 13 2026):
George Leigh Minor Plant and Soil Health Center
Soil Nutrient Analysis Lab
27A Manter Road Unit-4102
Storrs, CT 06269-4102
(In front of the UConn Dairy Bar)
The University of Connecticut Soil Nutrient Analysis Laboratory (SNAL) has been serving the farmers, greenhouse growers and residents of Connecticut for over 80 years.
"The nation that destroys its soil destroys itself. " – Franklin D. Roosevelt
Our Goals
The Soil Nutrient Analysis Laboratory has three major objectives. First is to provide an inexpensive means for agricultural producers, homeowners and gardeners to test their soil fertility and receive environmentally sound limestone and fertilizer recommendations. The second major focus of the Laboratory is education. Through our analyses as well as outreach efforts, clients and the public are being informed about wise soil management and fertility practices. The Laboratory also analyses research samples for University faculty and graduate students and serves as a teaching laboratory for several Department of Plant Science classes.
Soil Analysis
The laboratory processes about 14,000 soil samples annually. Samples are routinely tested for a variety of major and minor plant nutrients, lead and pH. Limestone and fertilizer recommendations are based on University research and field studies. Plants grown under optimum soil pH and fertility levels typically are healthier and more vigorous. Applications of limestone or fertilizer in inadequate or excessive amounts, wastes both time and money, can cause plants to perform poorly and, in the case of excessive fertilizer use, can negatively impact our surface and ground water supplies.
Nitrogen Testing
In addition to routine soil fertility testing, the SNAL also offers commercial agronomic and commercial vegetable growers the Pre-sidedress Soil Nitrate Test (PSNT). From June 1st through August 15th, soil samples are analyzed for nitrate-nitrogen on a 24 hour turnover. As a companion to the PSNT, our laboratory performs the End-of-Season Cornstalk Nitrate Test after harvest.
Green House Media
Saturated Media Extract (SME) is available to growers using soil-less potting media.
Plant Analysis
Click here to learn about our plant tissue analysis services.
George Leigh Minor Plant and Soil Health Center
Soil Nutrient Analysis Laboratory
27A Manter Road Unit 4102, Storrs, CT, 06269
University of Connecticut, Storrs, CT 06269-4102
phone: 860-486-4274
fax: 860-486-4562
email: soiltest@uconn.edu