Using Laboratory Analysis to Maximize Yield

An agricultural testing laboratory offers many different types of analyses to help growers, ag retailers, and crop consultants maximize yields and economic returns. This document provides an overview of the types of analyses useful for crop production in a typical Midwestern corn-corn or corn-soybean rotation system. Even though much of the discussion is oriented to corn and soybean production in the Midwest, many of the topics covered can be applied to other crops and environments. Emphasis will be on how to use the information from individual tests and how the various tests can be used to complement each other. Analysis relevant to corn and soybean production includes soil fertility, plant tissue, stalk nitrate, manure, fertilizer, and lime analysis.