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Regional Labs - Plant and Soil Analysis

Lab Contact National Quality
Assurance Program
Homeowner Test
Suggestion †
Farmer Test
Suggestion
†  Refers to what is found on the lab's list of tests offered to clients.
‡ Quality Assessment Program. The North American Proficiency Testing (NAPT) Program (a program of the Soil Science Society of America - https://www.soils.org/) assists soil, plant and water testing laboratories in their performance through inter-laboratory sample exchanges and a statistical evaluation of the analytical data. Performance Assessment Program (PAP) is a voluntary program offered as a service of the Soil Science Society of America (SSSA), Madison, WI, and operated as a part of the North American Proficiency Testing program (NAPT), and is administered by the NAPT Oversight Committee..
Inter Ag Services Laboratory
Website
2515 E. University Drive
Phoenix, AZ 85034
602-273-7248
‡ NAPT Soil and Plant Program Complete with Crop Specific Recommendations; Water soluble Ca, Mg, K, and Na; Olsen (Bicarbonate) P. Complete with Crop Specific Recommendations; Water soluble Ca, Mg, K, and Na; Olsen (Bicarbonate) P.
Servi-Tech Laboratories-Amarillo
Website
6921 S. Bell Ave.
Amarillo, TX 79109
806-677-0093
NAPT Soil and Plant Program Lawn & Garden Soil Analysis Golf Course and Athletic Turf Analysis and Soil Salinity Appraisal Soil Salinity Appraisal, Row Crop Test
Colorado State Univ.
Website
Soil, Water & Plant Testing Lab Campus Delivery 1120 NESB Room A319 Fort Collins CO 80523-1120
970-491-5061
PAP, NAPT Soil program 4X/yr Routine and SAR Routine and SAR
USUAL
.pdf
After May 1, 2012:
USUAL 9400 Old Main Hill Logan UT 84322
435-797-2217
PAP/ NAPT Soil, Plant, Water and Environmental Soil Program Complete Complete
Ward Laboratories
Website
4007 Cherry Ave
Kearney, NE 68848-0788
800-887-7645
NAPT Soil, Plant and Water Program S4, Salinity/Sodium Evaluation (SAR), Walkley-Black OM, Olsen (Bicarbonate) P. S4, Salinity/Sodium Evaluation (SAR), Walkley-Black OM, Olsen (Bicarbonate) P.
Dellavalle Laboratory, Inc.
Website
1910 W. McKinley Ave.
Suite #110
Fresno, CA 93728
800-228-9896
PAP / NAPT Soil, Plant and Water Program FA2 Sodium & Salinity Assay, Gypsum Requirement FA2 Sodium & Salinity Assay, Gypsum Requirement
Western Laboratories
Website
211 HWY 95 Parma, ID 83660
1-208-722-6564
PAP / NAPT Soil, Plant and Water Program FA2 Test 70 Garden Test FA2 Test 1 (Ag) Complete Soil Test
Analytical Sciences Laboratory
University of Idaho
Holm Research Center
2222 W. Sixth St.
Moscow, ID 83844-2203 Phone: 208-885-7900
PAP / NAPT Soil and Plant Program FA2 SNMP or SEFT; SOML; SELC; SGRQ; SNMS; SCCE FA2 SNMP or SEFT; SOML; SELC; SGRQ; SNMS; SCCE