The paper provides an overview of patent developments - mounted and trailed mobile choppers-straw spreaders. Their analysis is carried out and the shortcomings in the process of chopping and field distribution of the non-cereal part of rice crop are indicated. A design of PIRS-2-2 mobile trailed rice straw chopper is proposed, which is to eliminate the disadvantages inherent in the choppers designed for chopping cereal straw. The use of this machine will ensure the required quality of rice straw chopping and uniform distribution of check plots to a given width.

The work presents a tillage machine with vibrational electronic elements mounted on the working bodies, which allow reciprocal oscillating movements of the chisel bit and duckfoot shovels. Theoretical studies of the dependence of traction resistance reduction of a tillage machine on the influence of oscillations of the working bodies on the soil and on the unit’s speed. The oscillating movements of the working bodies will improve the quality of the main processing of heavy soils in gardens, reduce the energy intensity of a given process and increase productivity by increasing the unit’s speed.

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