The article discusses the benefits of minimum tillage, which involves loosening soil and applying fertiliser below the main crop. This method reduces the number of operations needed to cultivate row crops like soybeans, wheat, and others. The soil tillage research, namely the mathematical calculation and static analysis performed using the CAD system, revealed the loads that arise directly in the places where the soil deepener is attached to the supporting structure's frame. Moreover, it also shows all the points that can be subjected to loads, such as the back of the deep tillage stand, the attachment point of the arrow-shaped coulter, and including spreader plate used for wide fertiliser delivery. Based on mathemat­ical calculations, the calculated loads for soil deepeners were 2500 N per tool. CAD mod­elling enabled us to determine the form and details of the working tool, analyse the design integrity, identify structural deformations, and determine important indicators such as maximum load and safety factors. The obtained values indicate that the selected materials and fastening methods will satisfy the operating conditions obtained by calculation.