Investigation of Some Parameters of Drip Irrigation by Hydraulic Evaluation of Droppers

To assess the state of reclaimed land by purpose and intensity of use, it is necessary to fully apply the following set of indicators: the quality of irrigation water; the depth of groundwater; the salinity of underground water; the degree of salinity of the soil; leaching of the soil; the degree of soil contamination with fluoride, heavy metals and other pollutants; the composition and amount of humus; the density and structural-aggregate composition of the soil; the degree of occurrence of adverse exogenous processes. The main of the indicators is the depth of ground water, which during the growing season is considered relative to the “critical” depth, i.e. the depth at which the optimal water-air regime is determined for growing crops and preventing secondary salinization of the soil. The direction and speed of soil formation processes are also determined by the quality of irrigation water, climatic and hydrogeological conditions of the region, soil topography, natural properties, irrigation techniques and technologies. On reclaimed lands, soil degradation occurs only under certain conditions. The most common degradation processes are: rising groundwater levels; activation of geochemical processes at the local, regional and global levels. Secondary soil salinization is observed on the reclaimed lands. The desalination process is determined by the quality of irrigation water, soil properties, depth and salinity of groundwater; leaching of the soil and an increase in toxic alkalinity, pH; drainage of irrigated soils is formed due to the development of erosional, alkaline and saline processes, the presence of perennial grasses and organic fertilizers in the crop rotation. With soil salinization, the qualitative composition of humus changes, agrophysical degradation of reclaimed lands, modification of mineral soil components and increased hydrophilicity during irrigation. According to the above indicators, the full range of degraded lands in the region is unknown, since it requires regular monitoring of the reclaimed lands. Taking into account the above, studies aimed at increasing the efficiency of the use of reclaimed lands in the South of Russia is an urgent problem.

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Study of the Operation of a Vortex Pneumatic Sprayer of Disinfectant Liquids

Ivanov

Зиганшин

Gayfullin

et al. 2023

Vestnik of Kazan State Agrarian University

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The production of high-quality livestock products is achieved not only by breeding productive livestock breeds, but also by observing zootechnical requirements and ensuring sanitary well-being in livestock buildings. To maintain the proper sanitary condition of livestock buildings, modern technologies, technical means and preparations for disinfecting surfaces are used, and non-compliance with the requirements for the operation of technical means and the consumption rates of disinfectant liquids leads to an increase in the resistance of microorganisms to antimicrobial drugs. The effectiveness of disinfection largely depends on the technical capabilities of disinfection units, and to a greater extent on spray devices. Many researchers solve complex problems of optimizing the design and technological parameters of spray devices, thereby improving their spray quality. In this regard, a vortex pneumatic liquid sprayer has been developed to perform various technologies and disinfection modes. The dispersed composition of aerosols of disinfecting liquids was obtained under various operating modes by the proposed design of the sprayer. Based on the experimental data, graphical dependencies are constructed that affect the degree of dispersion of the working pressures of the disinfectant liquid and compressed air in the channels of their supply. The values of flow rates of a vortex pneumatic atomizer during its operation in various modes are obtained. Graphic dependences of the disinfectant liquid flow rate through the sprayer are plotted at different pressure ratios in the media supply channels (disinfectant liquid and compressed air) and the angles between them. Based on the obtained technical characteristics, the rational design parameters of the new design of the vortex pneumatic atomizer were determined, namely, the angle between the pneumatic and liquid inlet channels α=90o, the diameter of the outlet d=2.0 mm.

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Investigation of Some Parameters of Drip Irrigation by Hydraulic Evaluation of Droppers

Cited by 4 publications

References 1 publication

Study of thermophysical and dielectric properties of polymer materials and their application in the restoration of machine parts in agriculture

Study of thermophysical and dielectric properties of polymer materials and their application in the restoration of machine parts in agriculture

Mathematical model of the effective use of reclaimed lands in the South of Russia

Study of the Operation of a Vortex Pneumatic Sprayer of Disinfectant Liquids

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