Providing worldwide interlaboratory testing since 1971




801 Soil Analyses

Precision agriculture demands precision in soil testing. The ALP Program allows soil testing laboratories to monitor both bias and precision and offers a higher level of customer service. Soil samples chosen specifically to represent soils found in different regions of North America are distributed 3 times a year. Each round contains 5 prepared soils. Laboratories are permitted to report a wide array of chemical and physical properties. The soil methods covered include all those designated in US regional publications and Canada. The list of properties tested can be found on the Example Data Sheet.

ALP Program soil samples are shipped in March, June and September.

Enroll at any time; your subscription will start with the next scheduled shipping date and will include three (3) shipments.

New: Participants can choose between the standard sample size, 500mL container, or the large sample size, 1000mL container.

If CTS will be shipping samples to any country outside of the US participants are required to add an additional shipping fee to their order. Please click here to view shipping rates and details or view item “820 – Shipping Fees” from our Agriculture home page.

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Collaborative Testing Services, Inc.
P.O. Box 650820, Sterling, Virginia, USA 20165-0820
Phone: 1-571-434-1925