This book has been designed to cover undergraduate syllabus of Fundamentals of Agronomy as per ICAR 5th Deans\' Committee report. It covers the entire syllabus in one compact volume of 15 chapters. It covers introduction, seeds and sowing, tillage, crop density and geometry, manures and fertilizers, essential plant nutrients, irrigation management, crop rotation, allelopathy, herbicides, weed management, cropping systems, factors affecting crop production, plant ideotypes, adaptation and distribution of crops and harvesting and threshing. Related terms has been provided at the end for the ready reference of readers. The present book has been recommended as a core subject in the curriculum of B.Sc. (Agriculture) course of the agricultural universities. This book would be immensely useful to students, teachers, researchers, progressive farmers and extension workers working in the Read more Table of Contents Preface v 1. Introduction 1 2. Seeds and Sowing 11 3. Tillage 35 4. Crop Density and Geometry 41 5. Manures and Fertilizers 47 6. Essential Plant Nutrients 69 7. Irrigation Management 85 8. Crop Rotation 115 9. Allelopathy 125 10. Weed Management 133 11. Herbicides 161 12. Cropping Systems 177 13. Factors Affecting Crop Production 189 viii 14. Plant Ideotypes, Adaptations and Distribution of Crops 201 15. Harvesting and Threshing of Crops 225 Appendices 235 Terminology 247 References 265 Index 273