Contents

14.1 Introduction 395

14.2 Discovery of the Essentiality of Nickel 396

14.3 Physical and Chemical Properties of Nickel and Its Role in Animal and

Bacterial Systems 397

14.3.1 Nickel-Containing Enzymes and Proteins 397

14.3.2 Essentiality and Function of Nickel in Plants 398

14.3.3 Influence of Nickel on Crop Growth 400

14.4 Diagnosis of Nickel Status 401

14.4.1 Symptoms of Deficiency and Toxicity 401

14.5 Concentration of Nickel in Plants 403

14.6 Uptake and Transport 404

14.7 Nickel in Soils 404

14.7.1 Nickel Concentration in Soils 404

14.7.2 Nickel Analysis in Soils 405

14.8 Nickel Fertilizers 405

14.9 Conclusion 406

References 406

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