Parameters and operating modes of the coulter group of the sod seeder

Abstract

Abstract For the implementation of strip overseeding, they are used by seed drills with disc cutters. Improving the sowing quality due to the compaction of the seed bed and the creation of a soil layer between the seeds and fertilizers is possible when removing the working bodies of seeds and fertilizers of the from the area of the circular knives. To ensure the incorporation of seeds and granulates at different soil levels, it is stage to determine the length of the fertilizer coulter cheeks and the permissible distance between working bodies. Dependencies for calculating rational parameters and operating modes of the developed coulter group are obtained. The calculated parameters make it possible to ensure the minimum spread of fertilizer granules along the planting depth and high stability of the soil layer thickness between the fertilizer and seeds. In the range of operating speeds of the seeder, the rational parameters of the coulter group have the following values: the angle at the top of the fertilizer coulter in the horizontal plane is 15-20°, the lip of the fertilizer coulter is 0.040-0.045 m, the width of the coulter bell is 0.02 m, the minimum distance between the coulters is 0.14-0.16 m.