Regional Labs - Plant & Soil Analysis
|Lab Contact||National Quality|
†Â 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
IAS Lab Website
2515 E. University Drive
Phoenix, AZ 85034
|‡ 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.|
ST Lab Website
6921 S. Bell Ave.
Amarillo, TX 79109
|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.
Soil, Water & Plant Testing Lab Campus Delivery 1120 NESB Room A319 Fort Collins CO 80523-1120
|PAP, NAPT Soil program 4X/yr||Routine and SAR||Routine and SAR|
USU Lab Form
After May 1, 2012:
USUAL 9400 Old Main Hill Logan UT 84322
|PAP/ NAPT Soil, Plant, Water and Environmental Soil Program||Complete||Complete|
Ward Lab Website
4007 Cherry Ave
Kearney, NE 68848-0788
|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.
DL Inc. Website
1910 W. McKinley Ave.
Fresno, CA 93728
|PAP / NAPT Soil, Plant and Water Program||FA2 Sodium & Salinity Assay, Gypsum Requirement||FA2 Sodium & Salinity Assay, Gypsum Requirement||
Western Lab Website
211 HWY 95 Parma, ID 83660
|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
AS Lab Website
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|