Scientific Journal of KubSAU

The article describes the performance analysis of disc harrows and harrows. The basic types and their purpose have been presented. Particular attention is paid to the peculiarities of optimization of geometrical and operational parameters of spherical disks, depending on soil conditions

The tasks set in "The strategy of engine and technological modernization of agriculture until 2020" provide growth of labor productivity by 3–4 times. In our article, we have attempted to concretize in a zone sectional view the direction action for successful engine and technological modernization for the purpose of implementation of such strategically important point. Radical modernization of system of vehicles for complex mechanization of field husbandry based on the domestic equipment in relation to natural and technological conditions of the Krasnodar region is offered. Realization of system of transport is supposed with use of the equipment of the fourth generation, but in 2020 the equipment of the fifth generation and innovative processing methods for production of grain crops has to be realized. It is noted that the solution of such task without the state participation is impossible. The fundamental principles of improvement of system of vehicles for field husbandry and engine technologies are offered. The main of them is a new system of mobile power, new highly productive motorless grain - beetroot-, forage harvesters, new multipurpose units with the offered devices for combination of the technological operations changing labor-intensive technologies radically. We offer replacement of heavy tractors, self-propelled combines; cutting-down of the nomenclature of the equipment at the expense of multipurpose units, main application of fertilizers along with processing of the soil, drop of sealing of the soil and its dispersion. The offered technical re-equipment of branch will provide precision performance of operations, increase in labor productivity and economy of resources

The introduction of innovative technologies of cultivation of priority crops is not possible without the use of biologics. Their incorporation into the soil or on the leaf surface allows achieving a significant increase in productivity and production quality. Currently, on the market of agrochemical products, micronutrient fertilizers offer a wide and varied range of products, both foreign and domestic production. To select the most appropriate preparations or their combinations in price and the resulting effect is a complex task. Therefore, the aim of this study was the study of living forms of microorganisms and growth regulators on development and productivity of soft winter wheat called Yuka. The research was carried out in 2013-2015 in the fields of training and demonstration center for sustainable technologies in FSRI of the «ASC «Donskoy». As the test drugs we used Extresol 1/t seeds and vegetation 1l/ha; Agrophone KU-8 seeds 2 l/t of the growing season is 2 l/ha; seed Vigor forte of 0,50 g/t on vegetation of 0,25 g/ha; Flavobacterium 1,2 l/t seeds and 0,3 l/ha during growing season; Rostock 0,3 l/t and 0,2 l/ha during growing season; Risotorphine 1,2 l/t and 0,4 l/ha during growing season. As a result of researches it is established that living forms of bacteria preparation «Extrasol» and the growth regulators affected the productivity of winter wheat. The yield increase was from 0,53 t/ha to 0,66 t/ha. Huge positive role was played by biological technology of utilization of plant residues with the use of biological products and growth regulators. The introduction of this technology in the training and demonstration center for the production of winter wheat allowed to get 4056 Rub income from 1 ha, at the level of profitability 158%

The results of tribological researches on influence of friction on contact interaction of tobacco leaves with working bodies of the machines for their harvesting and further green leaf processing are presented. Coefficients of static and sliding friction are measured

The technology of cultivation of most crops provides pre - and post-emergence weeding of crops, and their feeding with the availability of soil nutrients. According to the used underlying technology, these operations are performed separately. The harrowing of crops after germination is necessary for weed control, the destruction of the soil crust for access of air to the root system and partial thinning of dense crops. Further destruction of weeds on crops are herbicides, high-quality entry which provide sprays. The latter can provide small and ultra-low volume spraying in high performance and environmental requirements. However, separate execution of technological operations for fertilizing and harrowing reduces the quality of work, increases the cost of production. The proposed combination of technological operations on a harrowing of crops different crops simultaneously with feeding plants solid mineral fertilizers. The combination of technological operations for one pass of machine-tractor unit in the field provides a reduction of the fleet, its capital intensity, the energy, cash costs, and hence competitiveness of products. The studies proposed new technical support processes, technological scheme of the multifunctional unit to combine the operations of feeding and harrowing of crops

Transplanting seedling into the field is an extremely important period for all seedling crops, as the plant passes through basic vegetation stages. After carried analysis of seedling transplantation machines utilization it became obvious that they all have low technical and exploitation parameters. The purpose of the research was elaboration of theoretical bases for calculating parameters of a unit for seedling feeding to transplanting device, which implementation will lead to increase efficiency of transplanting. The article presents the results of theoretical researches for proving parameters of a unit for seedling feeding to transplanting device. A system of equations for acting at seedling forces during its transportation from collecting drum to feeding drum is arranged. We have also calculated nomograms for defining drum rotating frequency depending on seedling friction coefficient on surfaces of collecting and feeding drums. Parameters of pneumatic feeding drum were technologically proved. Its principle is equality of capacities of feeding unit and transplanting device. We have elaborated a nomogram for defining feeding drum rotating frequency depending on plant spacing and velocity of transplanting machine

The article considers the dependencies of the constructive parameters of the field board in the form of a cylindrical drum on the physical and mechanical properties of the soil. Expressions have been obtained for calculating the radius of the cylinder, as well as the size of the arm for installing the cylinder relative to the sock of the field board. The limits of the use of field boards data on the hulls of plows

The article considers the dependencies of the constructive parameters of a field board in the form of a cylindrical drum on the physical and mechanical properties of the soil. Expressions have been obtained for calculating the radius of the cylinder, as well as the size of the arm for installing the cylinder relative to the sock of the field board. The article also shows the limits of using field boards data on the bodies of plows

The article presents results of theoretical and experimental studies on the justification and experimental confirmation of the influence of hydraulic seeding process modes on the parameters of row seeding technology for seedling crops. It is hypothesized that it is possible to ensure a uniform depth of seeding within 0.5...1.5 mm by feeding seeds into the soil by hydraulic means using a liquid. We have compiled a nomogram of the influence of the height of the initial level of the liquid and its density on the amount of pressure exerted by it on the soil. It was found that the pressure of the polydisperse system on the soil increases with both the density of the liquid and the height of the initial liquid level. Experimental studies have been conducted to study the effect of the pressure exerted by the liquid on the soil and the speed of the drill on the depth of furrow formation and the depth of wetting the soil. The article determines empirical dependences of furrow depth on the pressure exerted on it for different types of soils. It is found that the depth of soil wetting decreases with increasing speed of the drill

The article deals with the question of experimental studies determining the degree of traction resistance of reversible ploughs, when processing a combined plow. We have determined the optimal geometric dimensions of the developed additional working bodies experimentally