JUSTIFICATION OF THE DESIGN AND TECHNOLOGICAL SCHEME OF A WIDE-CAPACITY UNIT FOR SURFACE IMPROVEMENT OF HAYFIELDS AND PASTURES

Abstract

Reseeding of valuable forage grasses into the turf is usually done in hayfields with degenerated grass stand, on pastures "knocked out" by excessive grazing. Reseeding is done "broadcast" or by seeders with disc or anchor coulters. As a rule, the use of broadcast reseeding on grass stands with dense turf is ineffective due to low seed germination and poor survival of seedlings. The competition of the emerging shoots from the native vegetation for light, moisture and nutrients is very high. To improve survival, preliminary harrowing with needle or disc harrows or spraying with herbicides is carried out. The article presents information on the substantiation of the design and technological scheme of a wide-grip unit for surface improvement of hayfields and pastures, the results of an analytical review of existing technologies and technical means for sowing grass seeds in hayfields and pastures. (Research objective) Substantiation of the design and technological scheme for the development of a wide-grip unit for surface improvement of hayfields and pastures. (Materials and methods). When conducting research to substantiate the design and technological scheme, an analytical method was used to compare the advantages and disadvantages of the designs of existing technical means and their technical characteristics. (Results and discussion). Based on the results of the conducted research, on the basis of the analysis of the advantages and disadvantages of the design and technological schemes of existing technical means and their technical characteristics and indicators of the quality of the technological process, the design and technological scheme of a wide-grip unit for surface improvement of hayfields and pastures was substantiated. The design and technological scheme will be refined in the field using a laboratory and field installation.