Updating Soil Testing Methods
Traditional soil testing was never designed with biology in mind. Conventional soil tests may not be telling the full story about your soil. Soil testing isn’t just about nutrient levels; it’s about understanding which organisms are being selected. Traditionally growers use standard soil tests to guide fertilizer decisions. They collect soil samples, receive numerical results, and apply fertilizer based on the results. In biologically active soils, these conventional tests may not be telling the whole story. Chuck Schembre, a soil scientist who has spent more than two decades studying soil fertility, says classic soil testing was never designed with biology in mind. Most conventional soil tests just show pH and your nutrients (N-P-K) and maybe some micronutrients. The methods, developed before and refined after World War II, were built to support fertilizer recommendations, not to capture the dynamic, living processes happening in the root zone. That gap matters more than ever as...