Influence of disc cultivator design on soil particle displacement
2024
Horejs, Frantisek | Cisler, Martin | Matyas, Libor | Strnad, Michal
The aim of this research is to assess the influence of the design of disc cultivators on the displacement of soil particles. A disc cultivator with X-shaped rows of working tools and a disc cultivator with parallel rows of working tools are evaluated. Both of these machines are evaluated when working at three different slope levels of 2°, 6°, and 11°. The method used for detection of particle displacement was a modification of the tracer method. Tracers used for this experiment were aluminium cubes with an edge length of 16 mm. Forty cubes were used for one measurement, they were placed in two layers, with the cubes placed perpendicular to the soil processing direction at intervals of 0.1 m. Their original position is therefore precisely known for the subsequent determination of their displacement in both axes. The measured data were processed and evaluated in terms of the displacement of soil particles in the longitudinal and transverse direction perpendicular to the soil processing and the size of the vector angle. The vector then determines the size and direction in which the tracer was displaced. When comparing the values of the vector angles, it is evident that when using a cultivator with an X-shaped disc row design, higher average values were achieved for 4 of the 6 measurements than with a cultivator with parallel disc rows. The effect of the design on the average length of the vectors is not clear, as the design with X-shaped disc rows achieves higher values in the topsoil when comparing the average displacement length. In contrast, the average vector length values measured in the subsurface layer are higher, with the design with parallel rows of disc tools achieving higher average values.
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Publisher Latvia University of Life Sciences and Technologies
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