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1. Soil Test Interpretation: Saturated Paste, EC, SAR and CECSoils of neutral to alkaline pH of the Western United States often contain elevated levels of soluble salts and / or higher concentrations of sodium. Elevated concentrations of soluble salts limit crop growth and sodium may impact water management. Competent agricultural management of these soils is dependent on laboratory analysis of: soil soluble salts and there composition and the irrigation water soluble salt constituents. Soil analysis based on the saturated... R. Miller |
2. Reliability of Soil and Plant Analyses for Making Nutrient RecommendationsNutrient management is dependent on the collection of soil and plant samples for analytical testing and assessment. The quality of the analytical test are subject to bias and precision of the measurements made by the testing laboratory. Failure to understand lab analyses uncertainty can lead to over confidence in the management recommendation. Test uncertainty varies by soil and plant test methods utilized and by performance capability of the testing laboratory. Generally soil methods that provide... R. Miller |