JUSTIFICATION OF THE STRUCTURAL PARAMETERS OF THE INDIVIDUAL PRESS ROLLER OF THE SEEDER FOR SOWING GRASS

Abstract

The constructive parameters of an individual press roller of the seeder for sowing grass are substantiated in the given article.In accordance with the agrotechnical requirements, when sowing, the press roller must create a soil layer of optimal density at the depth of seed embedding to improve seed-soil contact and increase moisture inflow to them from the lower layers.It has been established that the formation of a soil layer of optimal density at the depth of seed embedding depends on the constructive parameters of the pack roller: the diameter and width of the rim. Based on the established shortcomings in the use of existing rolling parts of seeders, an experimental closing part of a planter for sowing grass with a packing roller with a cylindrical shape of a rim, a guide and a sector for adjusting the seeding depth has been substantiated and proposed, superior to others. In this connection, we have substantiated the diameter and width of the rim with the appropriate working grip, which ensures the rolling and destruction of the soil lump (or the clot is pressed into the soil) without creating unloading. It has been established that the diameter of the packing roller, excluding the loading of the soil in front of the roller, should not exceed 0.32 m, and the width of the rim of the roller should be at least 0.05 m. The seeder, equipped with an individual press roller with the proposed constructive parameters, passed laboratory and field tests on the sowing of seeds of the wheatgrass "Burabai" and awnless rump in 2018-2020 in the fields of the farm "Guldana" and the experimental site of the research and production campus of S.Seifullin Kazakh Agrotechnical University.