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.

It is a comprehensive treatise on Water Resources Development and Irrigation Management. For the last 30 years the book has enjoyed the status of an definitive textbook on the subject. It has now been thoroughly revised and updated, and thus substantially enlarged. In addition to the wholesale revision of the existing chapters, three new chapters have been added to the book, namely, ‘Lift Irrigation Systems and their Design’, Water Requirement of Crops and Irrigation Management’, and ‘Economic Evaluation of Irrigation Projects and Water Pricing Policy’.