Nutrient management involves using crop nutrients as efficiently as feasible to enhance productivity while protecting the environment. The key principle behind nutrient management is balancing soil nutrient inputs with crop requirements. When applied in proper quantities and at the right times, delivered nutrients help obtain optimum crop yields. Fertilizers are manufactured combinations of chemical products that comprise the main and different necessary nutrients. The book has been collected to deliver a wide-ranging understanding knowledge and to improve the practical capability of the under-graduate students based on the curriculum. The subject contents have been introduced to make it easy and simple for the students. This book aims at understanding the many aspects of nutrient management and fertilizer technology activities which have direct as well as indirect effects on the growth and development of crops. Thus, in a broad sense, the book will be very beneficial for undergraduate Agricultural college students to enrich their understanding of nutrient management and fertilizer technology. This book is having more scope for preparing, JRF, SRF, NRT-based examination. Contents: Soil Fertility and Productivity-Essential Nutrients-Criteria of Essentiality-N, P and K Nutrients-Functions-Deficiency and Toxicity Symptoms Calcium-Magnesium-Sulphur and Micronutrients-FunctionsDeficiency and Toxicity Symptoms Concepts and Approaches of Soil Fertility Evaluation-Liebig’s Law-Mitscherlich’s Law and Bray's Nutrient Mobility Concept-Deficiency Symptoms-Tissue Analysis-Biological Tests and Chemical Tests Techniques-Methods of Soil Fertility Evaluation-InductiveDeductive- ‘A’ Value Technique-Crop Logging-Critical Level-DRIS and Agronomic Approach Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Nitrogen in Soil Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Phosphorus in Soil Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Potassium in Soil Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Calcium and Magnesium in Soil Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Sulphur in Soil Sources-Forms-Mobility-Transformation-Fixation-Losses and Availability of Micronutrient in Soil Fertilizers-Definition-Classification of N, P and K Fertilizers N Fertilizers-Urea-Ammonium Sulphate-Ammonium NitrateCAN-Properties and their Reactions in Soil Manufacture of Urea and Ammonium Sulphate P Fertilizer-Rock Phosphate-Bone meal-Basic slag-Single Super Phosphate-Diammonium Phosphate-Triple Super PhosphateProperties and Their Reactions in Soil Manufacturing of SSP and DAP K-Fertilizer MOP and SOP-Properties and Reaction in Soil Manufacturing of MOP and SOP Muriate of Potash (MOP) Complex Fertilizers-Definition-Manufacturing of Ammonium Phosphate-Nitro Phosphate and N, P, K Complexes Mixed Fertilizer-Definition-Preparation and Compatibility Micronutrient Mixtures-Preparation and Characteristics Fertilizer Control Order (FCO-1985) Organic Manure-Definition-Classification and Sources Composting Techniques-Aerobic and Anaerobic-enriched FYM and Vermicompost-Composting of Organic Waste-Sugarcane trash and Coir waste Methods of Fertilizer Application for Different Soil TypesFertigation-Definition-Soluble Fertilizer-Fertilizer Solubility Interaction Between Water and Fertilizer Types of Fertigation-Fertilizer Schedule Comparison of Fertilizer Application Method Nutrient Management Concepts-INM-STCR-IPNSSSNM-RTNM Nitrogen Use Efficiency-Slow Release N FertilizerSignificance and Enhancement Techniques Nutrient Use Efficiency of P, K and Micronutrients and Their Enhancement Techniques Soil Health-Definition-Soil Quality-Physical-Chemical and Biological Indicator Soil Organic Matter (SOM) Long Term Effect of Fertilization on Soil