RESEARCH ON A GRAIN CULTISEEDER FOR SUBSOIL-BROADCAST SOWING

Abstract

The paper presents the results of theoretical and experimental studies on determining process efficiency of subsoil-broadcast sowing by means of improving the diagram and determining the technological parameters of a cultiseeder tined coulter / opener. The design of a tined coulter, where seeds are fed to its right and left sub-coulter spaces through various seed pipes, has been suggested. A simulation model of the process of seed movement and deflection in the sub-coulter space has been suggested. As a result of the conducted experimental studies, the statistics of the air drag coefficient and the recovery coefficient, the deviation angle of a seed flight operating trajectory after its divergence from the theoretical one, have been found. Rational parameters of a separator-distributor have been determined. Field experiments have been conducted in order to compare agro-technical performance indices of the experimental coulter and a commercial one.