Contents: 1. Introduction 2. Plant Nutrients 3. Functions, Deficiency and Toxicity Symptoms of Plant Nutrients 4. Chemistry of Nutrient in Soils 5. Soil Fertility Evaluation 6. Soil Organic Matter (SOM) 7. Organic Manures 8. Chemical Fertilizers 9. Methods of Fertilizer Application 10. Problematic Soils 11. Fertilizer Storage and Fertilizer Control Order 12. Fertilizer Recommendations and Application 13. Assessment of Irrigation Water Quality