The book begins with an exploration of the history of soil fertility and plant nutrition, presenting the evolution of scientific understanding in this field. Fundamental concepts such as essential and beneficial elements, criteria of essentiality, and the roles of essential plant nutrients are discussed, along with methods for identifying nutrient deficiencies through plant symptoms. A detailed examination of macroand micronutrientsincluding nitrogen, phosphorus, potassium, secondary nutrients, and micronutrientsprovides a robust foundation for understanding their functions, dynamics, and...