Effect of rotary machines on basic properties of soil; meadow ameliorative and field rotary machines and rototiller sowing units; plows with rotary and composite working tools; rotary row crop cultivators and sowing units; basic theory of rotary soil-working machines; construction of working tools, design and calculation of main elements of rotary cutters; design aspects of safety devices for rototillers: classification.

Designed for the course on Farm Machinery for undergraduate students of Agricultural Engineering, the book deals with the field operations such as tillage, tillage machineries including seedbed refining machineries, sowings and planting machineries, weeding and interculture equipment. A variety of harvesting and threshing equipment for cereals and forage crop including recovery/handling of crop residue are also dealt with in detail. The book discusses machineries used for specialised crops like rice, potato and sugarcane which are the major crops grown in our country. A detailed procedure on estimation of operational cost of agricultural machineries find place in this text. Review questions, multiple choice questions and solved numerical problems are suitably placed at the end of each chapter, wherever required, to help students to check their knowledge and grasping of the subject. Efforts have been made to write this book conforming to the course curriculum to enable students to use this book as a text. The tools, implements or machineries have been described in a simple language supported with line diagrams and photographs for better understanding. The students will find this book valuable for their continuing education as well as for various competitive examinations. Besides B.Tech (Agricultural Engineering) students, the book is also beneficial for the students of Diploma in Agricultural Engineering and B.Sc. Agricultural Sciences for their paper on ‘Farm Machinery’.