Woods End Introduces Solvita VAST For Soil Health Measurements

Woods End Introduces Solvita VAST For Soil Health Measurements

Soil aggregates that resist water dispersion help defend soils against erosion while providing essential porosity and structure for good air and water infiltration. Aggregate stability results from favorable soil factors such as humus, plant roots, fungal hyphae and microbial secretions which build a sponge-like network with clay, silt and sand particles.

Measurements help indicate improvement or degradation of soil due to farming practices.

Woods End Laboratories, manufacturer of Solvita soil biology tests, introduces the Solvita VAST (Volumetric Aggregate Stability Test), a rapid laboratory method for measuring water-stable soil aggregates. The new product was created to help soil labs complete the soil health test triangle, which evaluates the physical, biological and chemical components of the soil and typifies soil health testing.

“The innovative Solvita VAST method (physical) complements the Solvita CO2-Burst (biological) and SLAN (chemical) tests that can be used to evaluate soil health,” explains William Brinton, PhD, founder of Woods End Labs and creator of Solvita testing. “Each method adds a component to the final evaluation. So far, nutrient analysis (chemistry) has been the most common method, but soil health testing emphasizes the soil’s biology – the life in the soil. Together, the Solvita CO2-Burst (respiration), SLAN (Solvita Labile Amino-Nitrogen) and Solvita VAST tests provide a more complete and accurate analysis of the soil’s health.”

In a video, Brinton further explains how VAST exploits the “volumizing” character of aggregates to measure differential surface areas more rapidly and efficiently. He indicates the elimination of time-consuming drying and weighing steps that are common in older lab slaking methods saves time and money.
 
“To perform the method properly, VAST requires technician training like other lab tests,” Brinton says. “Therefore, we are providing VAST as part of a licensing arrangement with soil labs already performing other Solvita tests. This helps these labs attain a new commitment to their clients in presenting cost-effective soil reports that contain information about nutrients, along with biological and physical properties important for distinguishing soil health.”
 
Woods End will include the VAST method for laboratories participating in its new Solvita Soil Reference Program. “During introductory proficiency testing of Solvita last year, 20 percent of our nation’s 150 labs participated,” Brinton adds. “This demonstrates our commitment to the quality and accurate implementation of our tests.”

 

 

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