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After briefly discussing Crop Budgets, this section describes the major and minor nutrients required by all crop plants. The following section, Fundamentals of Soil Health and Fertility, addresses the responsible application of fertilizers and soil amendments and stewardship of soils to economically and efficiently provide plant nutrients while minimizing losses and subsequent negative environmental effects. The sections Soil Testing and Fertilizers and Soil Amendments describe soil testing methods and the many inputs commonly used to provide crop nutrient needs.