![]() Nearly all of the New England State Universities and Cornell use the Morgan extraction procedure. It is a universal extraction procedure, meaning it is used to determine all major nutrients and many of the micronutrients simultaneously. The lab uses the Modified Morgan extraction procedure, originally developed at the University of Connecticut in the early 1930s for use on New England Soils. The purpose of this fact sheet is to provide a brief explanation of each of the values provided on your soil test report and how they are used to generate recommendations. Recommendations provided with your soil test report are specific to the crop selection that you identified on your soil sample submission form and are based on the analytical results for your sample. These interpretations, as well as lime and fertilizer recommendations, are based on field and greenhouse trials conducted in Massachusetts and other Northeastern states. The optimum range (or typical range in some cases) is provided in the column to the right of your results. In order to make use of the values in predicting nutrient needs, the test must be calibrated by conducting nutrient response research, under local conditions with representative soils ranging from deficient to adequate for each nutrient of concern. It is important to recognize that the values obtained when a soil sample is analyzed are of little use as raw analytical data. ![]() The analytical methods used by the laboratory were developed for climate and soil types common to New England and the Northeastern U.S. The results provided on your soil test report reflect the properties of the sample you submitted and the testing procedures used by the University of Massachusetts Soil and Plant Tissue Testing Laboratory. Soil testing is also useful for identifying contaminated sites (e.g., elevated levels of lead). Soil testing is the most accurate way to determine lime and nutrient needs. ![]() The primary goal of soil testing is to inform efficient and effective resource management.
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