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This chapter discusses the importance of nitrogen, phosphorus, potassium, secondary nutrients, and trace elements in plant nutrition and the soil science behind their behavior, solubility, and mobility. It covers the forms and deficiencies of each nutrient and emphasizes their significance in maintaining plant health.
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Chapter 12 Plant Nutrition Soil Science & Management, 4E
Objectives • Discuss nitrogen nutrition and the nitrogen cycle • Discuss phosphorus nutrition • Discuss potassium nutrition • Answer questions about the secondary nutrients • Answer questions about trace elements Soil Science & Management, 4E
Terms to Know • Ammonia volatilization • Ammonification • Chelates • Chlorosis • Enzymes • Lodge Soil Science & Management, 4E
Nitrogen • The nitrogen cycle Figure 12-2 Soil Science & Management, 4E
Nitrogen Figure 12-4 Soil Science & Management, 4E
Nitrogen • Forms of nitrogen in the soil Figure 12-5 Soil Science & Management, 4E
Nitrogen • Forms of nitrogen in the soil • Nitrogen deficiency Figure 12-6 Soil Science & Management, 4E
Phosphorus • Forms of phosphorus in the soil Figure 12-8 Soil Science & Management, 4E
Phosphorus • Movement and uptake in the soil • Deficiency Soil Science & Management, 4E
Potassium • Forms of potassium in the soil Figure 12-11 Soil Science & Management, 4E
Potassium • Movement in the soil • Deficiencies Figure 12-12 Soil Science & Management, 4E
Secondary Nutrients • Calcium Figure 12-13 Soil Science & Management, 4E
Secondary Nutrients • Magnesium Figure 12-15 Soil Science & Management, 4E
Secondary Nutrients • Sulfur Figure 12-16 Soil Science & Management, 4E
Trace Elements Figure 12-17 Soil Science & Management, 4E
Trace Elements • Iron • Manganese • Zinc • Copper • Boron • Molybdenum • Chlorine, nickel, and others Soil Science & Management, 4E
Summary • Nutrients perform important tasks • Understand behavior in soil • Solubility and mobility important • Each present in right amount Soil Science & Management, 4E