Abstract
The purpose of this work is to develop a mathematical model of the traction resistance in a cultivator share-coulter, which describes the dependence of the energy properties of the seeder on the conditions and mode of operation, characterized by the density and hardness of the soil, the speed of movement and the depth of seed placement. In physical modeling, a real object is characterized as its reduced copy or natural sample, which allows research in laboratory conditions while preserving the nature of the phenomenon. The application of the theory of similarity and dimensions greatly simplifies and makes it easier to determine the functional relationship between the goals of the complexes of quantities that characterize the phenomenon. The article developed a mathematical model of the traction resistance of a cultivator share-coulter with the justification of independent variable factors. The obtained model allows to substantiate the optimal operating parameters, under which the seeder in typical soil conditions has the maximum technological efficiency
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