On the rational choice of a combine harvester and a reaper for grain harvesting in conditions of Siberia

Abstract

The issue of productivity of modern models of grain harvesters produced by OOO Rostselmash and OAO Gomselmash in connection with the nomenclature of reapers supplied to them for direct harvestering and depending on the grain crop yields typical for the Siberian region was considered. To determine the rational composition of the harvesting unit from the list of models under consideration, the models of combines, the loading of which can be provided in the Siberian region at a level close to or equal to the maximum productivity, were determined by calculation and graphical method. It was found that on condition of using 9,0 m wide reapers with Russian models of combine harvesters and 9,2 m with Byelorussian models, for harvesting works it is rational to use Vector 410 with the yield of 1,8-2,4 t/ha and GS 10 PRO with the yield of 2,45-3,00 t/ha. In this case, their technical potential can be fully realized and the maximum productivity in terms of both harvested area and threshed grain can be ensured. The use of more productive combine harvesters for direct harvesters in Siberia is not always justified, because at the current level of grain yields here their technical potential cannot be fully realized. On the basis of the research, diagrams were obtained, which can be used to select the harvesting machine “combine harvester + reaper”, taking into account the level of yield and the contour of fields in a particular farm, varying the coverage of the reaper.