This book has been authored by an individual with 28 years of teaching experience, with the aim of providing a comprehensive textbook on fertilizers for undergraduate and postgraduate students, researchers, and educators. It covers topics such as the classification of fertilizers, the manufacturing process of nitrogenous, phosphatic, and potassium fertilizers, and the importance of slow-release or controlled-release fertilizers. The book provides a systematic and in-depth coverage of fertilizer technology and their application under different soil and plant conditions. It is intended to serve as a valuable resource for individuals involved in fertilizer use and agricultural development, including agricultural administrators, researchers, teachers, students, soil chemists, extension workers, farmers, field advisors, marketing staff of the fertilizer industry, trading organizations, training centers, and international institutes. It is designed to provide the basic principles and theories used in the fertilizer industry.

1. Introduction 2. Nitrogenous Fertilizers 3. Phosphatic Fertilizers 4. Potassium Fertilizer 5. Secondary Nutrient Fertilizers 6. Micronutrients Fertilizers 7. Slow-Release or Controlled-Release Fertilizers 8. Fertiliser Control Order and Fertilisers Specifications 9.  References