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In this paper, it is proposed to use a self-propelled pneumatic mini-seeder with replaceable mechanical sowing devices designed and manufactured using computer technologies, advanced software and threedimensional printing for seeds selection. As a result of the research, hightech operating devices for a grain-drill feed with screw and disk-pin continuous seed metering are designed and manufactured. Grain-drill feeds allow sowing of free-flowing and non-free-flowing seeds, when used as seed meters on self-propelled pneumatic mini-seeders for selection sowing of grass seeds. Analysis of laboratory results of and field studies of the proposed grain-drill feeds allowed to determine the qualitative indicators of their performance: at a disk rotation speed of up to 15 rpm a linear dependence of the seed supply on the rotation frequency is provided; in the field studies, the instability of bluegrass seeding did not exceed 8%. The highest performance of the screw is obtained at the angle of choke inclination of 30...35 degrees with the seeding instability indicator of 2.5...3.5%. The developed grain-drill feed will significantly reduce the range of seeders and expand the set of sown seeds of various agricultural plants with one brand of a grain-drill feed.

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The article addresses the issues of creating a virtual educational environment using special equipment. The 3DVista Virtual Tour program was chosen as the development environment for the virtual tour, using features related to e-Learning and automatic integration with LMS Moodle. The virtual space of the created educational environment provides an opportunity for the existence of various forms of educational communication, based on the capabilities of modern teaching tools and modern information and communication technologies, allows you to provide conditions for improving the quality of education, exchanging of views, and mutual consultation. The use of web-quest technology will allow young people to shape their common understanding of the profession, realize the demands placed on professionals in this sphere, will contribute to identify their personal and professional interests and aptitudes, and will also help schoolchildren and students to make independently and consciously their professional choice This technology fosters the development of communication skills and a more intensive exchange of information in the process of learning or mastering new academic material. All this ensures an increase in the level of professional competence of schoolchildren and students.

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