A circular logo with a green outline, featuring a simple line drawing of a young plant with two leaves growing above the ground.

Agriculture

Program Overview

Established in 2007 as a joint effort between CTS and Dr. Robert O. Miller, the CTS Agricultural Laboratory Proficiency (ALP) Program combines our lengthy and extensive experience in operating interlaboratory programs with Dr. Miller's noted expertise in agricultural testing, offering a wide array of analyses on agronomic soils, carbon sequestration soils, botanicals, and water.

Technical Director Dr. Miller prepares test samples, assists with interpreting the collected data, and provides the Director's Analysis and Comments report. CTS prepares and distributes the Summary Report and Individual Performance Analysis Reports, which contain results for all properties and samples for which a laboratory submitted data during a testing cycle.

Program Resources

  • Program Catalog

    A brief overview of the ALP program, including schedules and testing.

  • Soil Collection Sites

    View information about soil collection sites since 2006.

  • Sub Test Codes

    View our sub test codes by MODUS code.

Soil Collection Sites

A map of the contiguous United States and Alaska, broken up by region with soil collection counts from each. A note at the bottom states, '36 soils collected from 9 Canadian provinces.'

Shop Tests

Schedule

Enrollment in our ALP program is open on a rolling basis, with subscriptions including three cycles of testing, beginning with the earliest cycle available for the next enrollment deadline.

Enroll Between August 16 – February 15
Samples ShipMarch
Data DueApril
Report IssuedMay
Samples ShipJune
Data DueAugust
Report IssuedSeptember
Samples ShipSeptember
Data DueOctober
Report IssuedNovember
Enroll Between February 16 – May 15
Samples ShipJune
Data DueAugust
Report IssuedSeptember
Samples ShipSeptember
Data DueOctober
Report IssuedNovember
Samples ShipMarch
Data DueApril
Report IssuedMay
Enroll Between May 16 – August 15
Samples ShipSeptember
Data DueOctober
Report IssuedNovember
Samples ShipMarch
Data DueApril
Report IssuedMay
Samples ShipJune
Data DueAugust
Report IssuedSeptember

*While CTS will make every effort to adhere to the published program schedules, all dates provided are tentative and are subject to change.

Reports