Kushnar'ov S. Basis energy saving technological, process tillage technology parameters of springs tools for conditions of the Ukrainian south steppe zone

Defended thesis contains the results of experimental and theoretical researches of choice of tillage methods and dept according to real soil condition in tillagge horizon by bull density and soil characteristics-natural balance of its density.It is worked out the mode "soil density-crop" and "irregularity of density distribution-crop".It is experimentall researched the dynamics of soil conduct by bulk density from the main ploughin tillage (in autumn) by set of various tools to different depth with following before sowing tillage and the condition of above sowing and under sowing soil layer before spring crop sowing.For tools which combine the main and before sowing tillage it is offered to use the working bodies on the elastic suspension clips. It is given the classification of various elastic systems according to characterictic of renewal force