The need for accurate and timely analyses of soil, plant, byproduct, and water using appropriate analytical and interpretation procedures is unquestionable, given the current emphasis on nutrient management and its impact on the quality of life in both rural and urban areas.  Nutrient management issues are of high priority at the local, regional, and national levels, and a number of institutions, organizations, and agencies cooperate to ensure the economic sustainability of production agriculture and industrial activities while striving to maintain a healthy environment.  It is widely recognized that effective nutrient analysis programs serve not only commercial agriculture, but also the general public, by ensuring that soil amendments are used wisely.  Continuous changes in technology dictate the need to continuously reevaluate analytical methods, information interpretation, and problem solving approaches for the betterment of society.