DEVELOPMENT OF AGRICULTURAL MECHANICS

A brief review is given on the research carried out in the field of agricultural mechanics. Agricultural mechanics is a subdivision of science about the functional relations of agricultural technological processes and machinery, which provides the possibility to improve the motivation, productivity and effectiveness of the mechanisation of agricultural production . Their cognition provides a possibility to improve the mechanisation issues of agricultural production in a more motivated, economical and faster way. A considerable development in agricultural mechanics was achieved in soil tillage (terra mechanics), field crop growing, beet harvesting, the design of broad-grip machines and aggregates by finding new relations between technological processes and functioning of machines and their working parts. The obtained correlations allow to apply a method of simulation and modelling technological processes and function of machine working parts, and to determine the optimal parameters of the operating parts for machines and the draft resistance in connection with the technological properties of soil and working mode. A study has been carried out of probable plant spacing in the field crop and vegetable plantations and their corresponding yields by sowing seeds at exact intervals and growing them without thinning. Mathematical coherences for the determination of the plant spacing density and their distribution were obtained. It is stated that the plant spacing density is a function of the seed germinating power in the field.