“…Interesting study examples for spatial variability are presented in (Jurado C. S., et al, 2012;Tekeste M., et al, 2005;Uzielli M., et al, 2005), and (Pieczyṅska- Kozlowska J., et al, 2021;Lu H., et al, 2022;Salgado R., et al, 2015;Zhang W., et al, 2015) for a property used in the characterization of soil resistance, namely the cone penetrometer test. A large number of works describe the variability of the tensile strength of agricultural machines intended for soil processing (Al_Neema K.A., et al, 2021;Al-Kheer A.Al-K.A., et al, 2011;Markinos A.). The random nature of the forces generated by the action of the working bodies of the soil processing machines is primarily motivated by the inhomogeneous characteristics of the soil (density, granular composition, physical composition, humidity, chemical composition, etc.…”