This article is devoted to the improvement of technologies and technical operations for providing agricultural plants with moisture, such as optimal moisture accumulation of both winter precipitation (snow) and summer rainfall and their rational spending, excluding unproductive moisture losses by reducing evaporation because of high soil temperatures, which is typical, according to experts, of global warming.
The paper presents the results of laboratory studies of a number of additives introduced during operation to motor oil of internal combustion engines. It also evaluates their impact on tribological characteristics of friction pairs. It was found that all studied additives have a positive effect on the running-in quality. Reduced wear of friction pairs, reduced surface roughness compared to base motor oil is determined. The best indicators were recorded with the FENOM additive. The decrease in wear was 46% and roughness – 23.5% compared to the base oil.
The article is devoted to improving the winter wheat seeding technology. Choosing the rational design of the opener group enables the placement of crop seeds in a deeper moisty soil layer for their rapid germination with the formation of a surface relief from furrows. Seeds are placed into furrows at the optimal depth 4-5 cm and furrow slices are formed by the soil thrown out of the furrow by chisel-shaped openers and compacted by individual rollers for each opener. That solves the problem of insufficient soil moisture in arid regions.
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