Analytical justification of the application of combined technology in the technology of crop residues

To date, the use of combined agricultural units in plant growing, capable of performing several technological operations in one pass, has become quite common [1, 2, 3, 4]. Such a widespread use in agricultural technologies is due to the presence of such generally recognized advantages in combined equipment as: - reduction in the number of tractors and other agricultural machines involved in the processing of the field, which allows to reduce soil compaction; - reduction of fuel consumption and labor costs for processing a hectare of area, which increases energy efficiency and productivity of the agricultural enterprise; - reduction of the time of field work, which is very important in conditions of unstable weather. However, these devices also have a number of disadvantages [6, 7]: - their relative high cost. It is often more profitable to buy plows, harrows and seeders separately than to buy a combined tool that combines all their qualities; - lower quality of processing of the field in comparison with tools with traditional separate processing organs; - significant weight and a large number of combined implements simultaneously immersed in the ground create a significantly greater traction resistance to the movement of the unit. For this reason, they can only be hooked up to very powerful and large tractors, the number of which is often small for an ordinary agricultural enterprise, and even more so for a farmer. The indicated advantages and disadvantages constitute the relevance of the development of new, improvement and modernization of existing designs of combined units.