Graph-Analytical Method for Determining the Untreated and Treated with the Herbicide Area around the Stem with Over-lapping When the Working Body is Made in the Form of a Probe

Abstract

In order to solve the problem of uniform surface treatment of bored areas of perennial plantations (treatment with herbicides) the graph-analytical method of examination of treatment quality (determination of untreated and treated area around the overlapped die) is proposed. To do this, you need to specify the diameter of the stamp of perennial planting, the overall size of the deflector in the form of a stylus, its position in the space relative to the diameter of the stamp of perennial planting, the size of the overlap zone when treating with herbicides in the gardens, the distance between the dies and the operating speed of the unit to determine the geometric and operating parameters of the sprayer. The whole stage of the working device (probe), when it is working in the nozzle zone is divided into 4 stages. Analysis of the graphical image of the stylus trajectory during movement around the stamp gives an idea of the surface treatment process with herbicides during spraying. In the first stage, part of the borehole zone is treated with overlap, while in the third stage, the untreated area around the die is left untreated. The dependencies of determining these areas depending on the geometric dimensions of the dies, their location in the gardens, the length and angle of the stylus and the operating speed of the unit are derived. According to the different trajectories of movement, in the process of influence of a stylus on a stamp there is a change of direction of an air-droplet stream, as a result of which the flow of a working liquid and accordingly the processed area changes. It is possible to determine the deviation of the actual rate of fluid flow from the specified rate at different points in the borehole area by calculating the areas treated with overlap and untreated. All obtained dependencies will serve for optimization of geometrical and mode parameters of the working device (feeler gauge) during its operation in the borehole zone.

Optimization of parameters and operating modes of the unit for preparing soil for planting rice in Burundi

“…Processing of experimental data was carried out according to the method based on the provisions of the theory of experiment planning [4].…”

Optimization of the design parameters of the sprayer rotary device for the chemical treatment of the near-stem zone of fruit trees

“…As a result of processing the mathematical model of the rotary device, the regression equations were obtained [26]:  for double-treated area near the bole…”

“…The choice of the optimal values of these parameters was carried out on the basis of a symmetrical compositional plan [25][26]. The maximum value of the installation angle of the rotary device relative to the tree trunk is  70 .…”

Selecting the best planter option based on Harrington function

“…The Harrington desirability function has long been widely used in various scientific fields [20][21][22]. In relation to the task set, it has been modernized in graphical form [23][24]. In accordance with the estimated indicators, direct and inverse scales were formed:…”