The role of small farm equipment; Land preparation; Irrigation; Seeding and planting; Plant protection and soil fertility; Harvesting; Threshing; Grain drying; Improving research and development, manufacturing, marketing, extension and use of small farm equipment.

This book contains the proceedings of HMM2012, the 4th International Symposium on Historical Developments in the field of Mechanism and Machine Science (MMS). These proceedings cover recent research concerning all aspects of the development of MMS from antiquity until the present and its historiography: machines, mechanisms, kinematics, dynamics, concepts and theories, design methods, collections of methods, collections of models, institutions and biographies.