Managing Crop Nutrients

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  • Introduction
    • Using a Systems Approach to Manage Crop Nutrients …2
    • Saving on Inputs …4
  • Nutrients and the Environment
    • Phosphorus (P) and Water Quality …5
    • Nitrogen (N) and Water Quality …9
    • Greenhouse Gas Emissions and Crop Nutrients …11
    • Organic Crop Nutrients and Pathogens …13
    • Organic Crop Nutrients and Air Quality …14
    • Energy Use …15
  • Understanding the Basics
    • What are Nutrients? …16
    • The Nutrient Cycle …18
    • Nutrients in Soils and Plants …25
    • Nutrient Deficiency and Toxicity …34
    • Soil Acidity and Liming …35
  • Sources of Nutrients
    • Nutrient Terminologyn …39
    • Mineral Fertilizers …40
    • Organic Sources …44
    • Non-Agricultural Source Materials (Nasms) …50
  • Nutrient Management Planning in ten Steps
  • BMPs for Determining What Nutrients You Need
    • Testing for Nutrients and Interpreting Test Results  …56
    • Soil Testing …56
    • Approaches to Making Fertilizer Recommendations …66
    • Tissue Testing …71
    • Manure Testing …73
  • BMPs for Applying Nutrients
    • Nutrient Use Efficiency (Nue) …78
    • Right Rate …80
    • Right Time …85
    • Right Place …92
    • And Now It’s Up to You …104