Soil Health Reference Program – is your lab participating?
Solvita offers a specific soil test reference program featuring soil biologial test capability for tests recognized as indicating biological fertility. This program differs from conventional “proficiency” programs. Programs like NAPT and ALP are designed for chemical nutrient lab test validation. For biological test proficiency, testing and sample prep must be conducted differently. We offer soil samples selected based on validated management history (example: depleted vs improved) and specially prepared so as not to damage inherent biological traits. The soils are rolled non-destructively, and not hammermilled, macerated or machine ground.
As a convenience to persons wishing to access labs with tested capabilities in soil health parameters an active list is maintained and may be requested:
KEY to MAP SYMBOLS
PARTNER: A soil laboratory that offering 2 or more tests consistent with biological fertility analysis.
OUTREACH: These firms carry some or all Solvita biological fertility products for resale but do not offer a testing service.
Join the Solvita Soil Biological Fertility Reference Program: This unique program is accessed by more than 35 organizations per year. It aids labs to evaluate their own performance and has bolstered statistical confidence in the magnitude and the proficiency of distinguishing soil health metrics by analytical methods. All participants receive the Annual Soil Health Test Proficiency report prepared by Dr William Brinton, Director, Woods End Laboratories, inc.
Analyses Examined in 2018: CO2-Respiration (by any method; Organic-N; Aggregate Stability; Organic Matter.
PREVIOUS Solvita Proficiency Report:
SOIL GRINDING EFFECTS ON RESPIRATION.
Solvita QAQC programs have been able to determine that there is a confounding factor of grinding vs soil structure & texture and initial fertility, on the rate of respiration determined by Solvita using ALP soil series: