By

Ray Ward, Ph.D, CCA, Ward Laboratories, INC. Founder
Over the past year, our soil experts have added the Soil Health Assessment test. Soil health is the overlapping areas of the chemical, physical and biological properties of the soil. Previously, the chemical or nutrient status of the soil has been the main focus of soil testing laboratories. Recent addition of biological properties have become...
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Ward Laboratories uses soil test methods developed and calibrated by land grant universities.  Standard methods are published in several manuals.  We prefer to use standard methods that have performed well for many years. Soil pH & EC: We use a 1:1 water pH.  This means we measure 10 grams of soil and 10 mL of...
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Reprint From June 2003 Ward Letter. Ward Laboratories professionals often get questions about surface urea application and UAN solutions. Urea is a dry fertilizer that dissolves with water after application creating urease enzyme activity that is naturally present in all soils at some level. Urease enzyme converts urea to ammonia (NH3) and bicarbonate (HCO3) in...
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