Justification of the parameters of the tillerblock seeder for sowing sorghum seeds in the Republic of Angola

Abstract

Small forms of management of the Republic of Angola are in great need of support and development, since according to the World Bank, 80% of Angola’s agricultural production, which involves 46% of the population, are small subsidiary farms with an area of 2 hectares without mechanization, infrastructure, high-quality seed and other means of production. The mass introduction of motorcycle cultivators with a capacity of 3-5 to 12 hp with a set of machines and tools for them will significantly accelerate the transition from manual labor to mechanized. It is obvious that the modernization and optimization of these tools is a continuous process, where each user, to one degree or another, individually adjusts the tools acquired from the factory manufacturer to their soil conditions, seed material and power of the tractor. One of the components of the agricultural production process is sowing. In this paper, a precision seeding drill of a motor-block format and its working bodies a coulter group fo r s oil conditions of the Republic of Angola, are considered. A review of the theoretical prerequisites for substantiating the design parameters of a tillerblock seed drill for sowin g sorghum seeds was carried out, and the optimal parameters of the coulter operation process were determined depending on the speed of the unit (V km/h), the angle of attack of the coulter stand (α, deg), the angle of soil crumbling (β, deg). Scientific research was carried out according to the strategy of modernization of agriculture in Angola.