The article provides information on the labor productivity level in the agricultural sector, reveals aspects of innovations in production, analyzes the education level in human resources of rural workers, reveals the prospects for digitalization of the agricultural sector.
Potato production in the Russian Federation and in many countries of the world is important. In the public sector, potatoes are cultivated on farms, personal and subsidiary plots. In connection with the transition to market relations, the area for planting potatoes has sharply decreased, and as a result, the production of potato harvesting equipment. Therefore, an acute question arose of the further creation and production of the simplest potato harvesting equipment and the improvement of their new working bodies. Pre-harvest removal chopping tops occupies an important place in the technology of potato cultivation. During operation, it was noted that rotary machines have a number of disadvantages caused by the imperfection of the rotor design, its kinematic modes, insufficient balance and reliability. In order to eliminate these shortcomings, a rotary topper with a vertical axis of rotation was designed and manufactured. To justify the design and operational parameters, theoretical studies of the process of interaction of the working element of the chopper with the tops of root crops were carried out, as a result of which the main patterns characterizing the working element were identified. In particular, dependence was obtained that allows to determine the cross-sectional diameter of the working element, which takes into account both the design parameters of the developed grinder and the properties of the tops. After calculating the obtained dependence, it was determined that for the operation of the unit with a minimum energy consumption, the diameter of the working element should be 6 mm. Such a working element cuts the tops in compliance with all agricultural requirements. Field experiments conducted later confirmed the obtained value, which indicates the reliability of the results.
One of the necessary conditions for the creation of effective working bodies that ensure high quality tillage with the lowest possible energy intensity of the process is the search for the optimal geometric and kinematic parameters of the working body of the tillage implement. This problem is successfully solved for working bodies making a simple flat movement. At the same time, a significant proportion of the working bodies of agricultural machines have relatively complex working bodies, which, along with the portable rectilinear movement, rotate around its axis. So, many rotary working bodies rotate around disjoint axes and move progressively in a direction that does not coincide and does not intersect with the instantaneous axis of rotation. One of the promising designs of the working bodies for deep loosening of the soil is a rotary working body conical shape. In the article, the equations of motion of an arbitrary point of the working surface of a subsoiler of a conical shape are obtained. The subsoiler is a screw cone mounted on a bearing, with the possibility of frictional rotational movement. The main research results are obtained on the basis of theoretical study using methods of mechanics, analytical geometry and laws of agricultural mechanics. The rational parameters of the angle at the apex of the cone ψ and the rear cutting angle ε are revealed. Using the obtained equations, it is possible to determine the speed of action on the soil, as well as the acceleration of various points of the working surface of the cone-shaped rotary working bodies, which can be further used to analyze the process of interaction of the tool with the soil and justify its structural and technological parameters.
The article reveals conceptual principles of creating technology for designing transport and logistics schemes for harvesting, reloading and transportation of grain crops with their flexible adaptation to specific agronomic, technical, natural production, economic and numerous conditions during their harvest. The authors presented the results of system-analytical studies of problem, which formed practical consulting document, which allows the offender in specific conditions to determine choice of optimal transport and logistics schemes for harvesting and transporting crops to granaries. The concept of developing such a document for synthesis of logistics technologies for harvesting and transporting grain involves three stages. The authors described the technology to achieve the result, which does not require without great need to conduct complex, long-term and costly field experiments. In addition, the article made it clear that this approach should be used to solve complex problems, to implement intelligent projects of high complexity. The problem posed in article undoubtedly belongs to this class of problems. The main emphasis is placed on conceptual nature of work and at least the results of first stage of inductive technologies of system information-analytical research are given. The authors, based on complexity and significant lack of initial information base, planned to implement the project on inductive technology.
The article discusses the features of the process of interaction of the blades of the teeth of the disk working body with the cultivated soil. If we take into account the fact that the parameters of the intensity of the impact exerted on the soil by the toothed working body will depend on the speed of movement, it will be possible to determine the values of the speed of an arbitrary point of the blade of the teeth. As a result of mathematical transformations and the application of the method of differentiation of the equation of their displacement, a formula was obtained for calculating the cutting speed for an arbitrary point of the blade of the teeth of a disk working body. Also, the acceleration of the points under consideration is determined and the dependences obtained as a result of theoretical studies are analyzed. The dependences demonstrate that the parameters of the impact speed and the trajectory of the blade movement directly depend on the shape of the cutting edge. They are also influenced by the angle of attack, the value of the inclination in relation to the vertical, as well as the speed of the planter movement. After analyzing the results obtained, it can be concluded that there is a noticeable decrease in the throwing of the upper soil layer to the side and the removal of the lower layer to the open surface of the field when exposed to a disk working body with teeth around the perimeter.
Existing methods for assessing the economic efficiency of the system of machines and technological methods contain numerous similar indicators. The multifaceted nature of the problem, its dynamism also cannot be covered by a single criterion – the value of the reduced costs. A method of systematic research and analysis of the technological efficiency of the production process has been developed to improve the technological processes and technical means for potato cultivation and to achieve higher economic indicators of agricultural production development. A generalized criterion characterizing the efficiency of the working process as a whole, which can be used to evaluate various technological operations in the production of potatoes, is obtained. Various technological processes performed by the working bodies of combined and serial machines were analyzed to verify and confirm the effectiveness of the developed provisions. At the same time, vector quantity was adopted as the main criterion for the comparative evaluation of machines and technologies. As a result of the implementation of this method, a scientifically based technological map for the cultivation of environmentally safe potatoes is proposed. The complex of agricultural practices for the implementation of the proposed technology is selected taking into account soil and climatic conditions and is designed for the cultivation of potatoes with minimal labor and money. The use of technological operations, such as the distribution of straw rolls on the field with its incorporation into the soil, germination of seed potatoes tubers in the peat-mineral shell, inter-row processing with sprinkling of plants with soil, simultaneous removal of the tops by crushing in the process of harvesting combines can significantly reduce costs in the production of potatoes.
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