Analysis of the uniformity of the distribution of herbicides in the intercustal zone with a bar with a deviating section

Abstract

It is known that a large share of the costs in perennial plantings of fruit and berry crops is associated with weed control. In the ranks of plants, chemical methods of weed control using herbicidal rods are used. In recent years, requirements for uniform distribution of herbicides on the treated surface have increased. The article analyzes the accuracy of the dosage of herbicides in the intercustal zone with a bar with a deviating section. The movement of the rod in the horizontal plane and the spill of liquid along its length is considered. The volume of the poured liquid, the area of the wetted surface, the amount of liquid per unit area are determined. It was established that the dose of application of herbicides over the area depends on the speed of the bar, the angle of its inclination to the direction of movement and the specific spill of the liquid along the length. It is shown that the more the rod deviates from its initial position and the closer it is to the row line, the greater the spout of the solution per unit area with respect to a given one. Dependencies are obtained that allow one to compare the doses of the application of the working solution of the herbicide on the treated surface before the bar meets the cultivated plant and when it is bypassed. The paper shows the data of calculation of the spill of the working fluid at a specific point of the rod. It was revealed that during the processing of the inter-brush strip in one pass with the half-line deviating section of the row line overlapping, the excess of the given outflow dose can reach 20 times. To process the inter-bush zones of perennial plantations, it is recommended to stack the herbicidal booms with short deflecting sections up to the row axis, providing compensation for inaccuracies in driving and planting trees in a row, and processing the row in two adjacent passes.