Manure analysis is strongly recommended to help farmers know the value of manure applied to their crops in place of commercial fertilizer. Using manure in place of commercial fertilizer often results in increased crop yields, but accurate analysis of the manure is crucial.

The following laboratories, arranged by state or province, are certified by the Minnesota Department of Agriculture for manure testing. To find out more information about the laboratory, including the types of tests it is certified to run, click on the laboratory's name.

This is the only manure analysis certification of laboratories in North America. All of the laboratories have been certified for Total Nitrogen and Total Phosphorus. Many laboratories also elected to become certified for other tests including: Total Potassium, Total Solids, Electrical Conductivity, Copper, Sulfur, and Zinc. Make sure the laboratory you use is certified for the tests that are important to your farming operation.

Before submitting samples, please contact the laboratory for instructions. Many laboratories provide sample containers.

Frequently Asked Questions About the Manure Testing Laboratory Certification Program

NAME	CITY	STATE
UNIVERSITY OF ARKANSAS	FAYETTEVILLE	AR
DAIRYLAND LAB INC DBA VALLEY TECH AGRICULTURAL LABORATORY	TULARE	CA
JMLORD INC	FRESNO	CA
AGROLAB INC	HARRINGTON	DE
DELAWARE DEPARTMENT OF AGRICULTURE	DOVER	DE
WATERS AGRICULTURAL LABORATORIES INC	CAMILLA	GA
FOUNDATION ANALYTICAL LABORATORY INC	CHEROKEE	IA
STUKENHOLTZ LABORATORY INC	TWIN FALLS	ID
A & L GREAT LAKES LABORATORIES INC	FORT WAYNE	IN
SURE TECH LABORATORIES	INDIANAPOLIS	IN
SERVI TECH INC DBA SERVI TECH LABS	DODGE CITY	KS
WATERS AGRICULTURAL LABORATORIES INC	OWENSBORO	KY
AG RESOURCE CONSULTING INC	ALBANY	MN
AGVISE LABORATORIES INC	BENSON	MN
MINNESOTA DHIA LABORATORIES	SAUK CENTRE	MN
MINNESOTA VALLEY TESTING LABORATORIES INC	NEW ULM	MN
CUSTOM LABORATORY INC	MONETT	MO
UNIVERSITY OF MISSOURI	COLUMBIA	MO
WATERS AGRICULTURAL LABORATORIES INC	VICKSBURG	MS
NORTH CAROLINA DEPT OF AGRICULTURE	RALEIGH	NC
WATERS AGRICULTURAL LABORATORIES INC	WARSAW	NC
AGVISE LABORATORIES INC	NORTHWOOD	ND
AMERICAN AGRICULTURAL LABORATORY INC	MC COOK	NE
MIDWEST LABORATORIES INC	OMAHA	NE
SERVI TECH INC DBA SERVI TECH LABS	HASTINGS	NE
WARD LABORATORIES INC	KEARNEY	NE
DAIRY ONE COOPERATIVE INC	ITHACA	NY
BROOKSIDE LABORATORIES INC	NEW BREMEN	OH
OKLAHOMA STATE UNIVERSITY	STILLWATER	OK
STRATFORD AGRI ANALYSIS INC	STRATFORD	ON
CUMBERLAND VALLEY ANALYTICAL SERVICES INCORPORATED	WAYNESBORO	PA
PENNSYLVANIA STATE UNIVERSITY DBA AGRICULTURAL ANALYTICAL SERVICES LABORATORY	UNIVERSITY PARK	PA
WAYPOINT ANALYTICAL PENNSYLVANIA INC	LEOLA	PA
PRINCE EDWARD ISLAND ANALYTICAL LABORATORY	CHARLOTTETOWN	PE
CLEMSON UNIVERSITY	CLEMSON	SC
WAYPOINT ANALYTICAL LLC	MEMPHIS	TN
SERVI TECH INC DBA SERVI TECH LABS	AMARILLO	TX
UTAH STATE UNIVERSITY	LOGAN	UT
BEST TEST ANALYTICAL SERVICES LLC	MOSES LAKE	WA
SOILTEST FARM CONSULTANTS INC	MOSES LAKE	WA
AGSOURCE COOPERATIVE SERVICES DBA AGSOURCE LABORATORIES	BONDUEL	WI
ROCK RIVER LABORATORY INC	WATERTOWN	WI
STATE OF WEST VIRGINIA DBA WV DEPARTMENT OF AGRICULTURE	MOOREFIELD	WV

MDA Contact

Larry Gunderson
Larry.Gunderson@state.mn.us
651-201-6168
Pesticide & Fertilizer Management Division