The purpose of research is to validate the structural and technological parameters of profilographs to control reclamation technologies on sloping cultivated soils. The identified shortcomings in developing and realization of reclamation events are often associated with significant spatial and temporal variability of main parameters of the underlying surface. The method of determining the average slope by strip chart recording of the investigated underlying soil surface using contact and contact profilographs is proposed to find out these parameters. Both the direction and size of the average slope of the surface element, and the roughness and waviness of the treated daylight surface are determined during control. The justifications of the scanned girth diameter depending on the applied reclamation technology on sloping cultivated land as the main structural and technological parameter of profilograph is done. According to the results of theoretical research the dependence of the number of intersections with the center line on the scanned girth diameter and technological furrow width has been obtained. This relationship made it possible to calculate the recommended scan radius of the soil surface by profilograph for different tillage and erosion-conservation machines taking into account microrelief or soil ridgeness after its treatment. An expression for processing the measured data by the moving average method under the reclamation techniques control on sloping cultivated lands is obtained. The proposed method of finding out the underlying surface parameters under the field conditions is completed in reasonable industrial gages that simplify the method and improve the accuracy of determining the average slope, roughness and ridgeness of daylight surface under the control of reclamation techniques on sloping agricultural landscapes.
Keywords: soil surface profiling, profilograph, substantiation of parameters, underlying surface, control technologies, scanned girt.
