PLFA Analysis: What Soil Biology Testing Can and Cannot Tell You
22 minApril 8, 2026
About This Episode
The soil biology test that measures everything — but tells you almost nothing actionable. Yet. PLFA analysis is the most precise method available for counting living microbes in your soil. Agronomists love it. Farmers pay $55–85 a sample for it. And after 30 years of research, there are still no validated thresholds for what a "good" number looks like.
PLFA Analysis: What Soil Biology Testing Can and Cannot Tell You
Topics Covered
soil healthsoil biologycover crops
