Abstract
One of the modern elements of agrotechnologies is the presowing treatment of seeds with bio-stimulating preparations, providing a complex effect on seeds, which, along with improving the sowing and productive qualities of seeds, can increase the resistance of plants to adverse environmental factors, diseases and pests. Recently, world agricultural production is increasingly focused on environmentally friendly technologies, where preparations based on components of natural origin become important. Preparations based on humic acids are among them. The effectiveness of their use in the process of presowing treatment of seeds to a certain extent depends on the technology and technical means used. This article discusses the design of the developed seed dresser and explores the basic physical processes that affect the quality of seed treatment. The effectiveness of seed treatment with growth stimulants has been studied depending on the intensity of heat exchange processes taking place in the processing chamber of the developed device, where heat transfer from the vapor of humates to the downward flow of grain occurs. Herewith, the dependence of heat transfer on the residence time of the grain in the treatment chamber, heat carrier temperature (aerosol of humates) and uniform distribution of coolant flow in the treatment chamber was determined.
Highlights
The main indicators in the production of grain crops are the yield and quality parameters of the resulting products, which primarily depends on agricultural technologies and physiological processes occurring during the growth and development of plants.One of the important elements of agricultural technologies that affect this parameter is the pre-sowing treatment of seed material, suggesting a complex effect on seeds, contributing to an increase in sowing and productive qualities of seeds, plant resistance to adverse environmental factors, diseases and pests
According to a number of scientists, the treatment with humic preparations weakens the negative value of damages of plant seeds and improves the sowing qualities of seeds: laboratory and field germination of seeds, viability, stimulates the growth and development of seedlings and the primary root system, while reducing seed damage by fungal diseases that have arisen in result of internal seed infection [1, 4]. These preparations can be used in the process of presowing treatment of seed material, as well as plant growth stimulants for growing most crops
The effectiveness of seed treatment with growth stimulants depends on the intensity of heat exchange processes taking place in the treatment chamber of the plant, where heat transfer from the steam of humates to the downward flow of grain occurs, while the heat transfer depends on the residence time of the grain in the treatment chamber, heat carrier temperature, and uniformity distribution of the coolant flow in the treatment chamber
Summary
The main indicators in the production of grain crops are the yield and quality parameters of the resulting products, which primarily depends on agricultural technologies and physiological processes occurring during the growth and development of plants.One of the important elements of agricultural technologies that affect this parameter is the pre-sowing treatment of seed material, suggesting a complex effect on seeds, contributing to an increase in sowing and productive qualities of seeds, plant resistance to adverse environmental factors, diseases and pests. According to a number of scientists, the treatment with humic preparations weakens the negative value of damages of plant seeds and improves the sowing qualities of seeds: laboratory and field germination of seeds, viability, stimulates the growth and development of seedlings and the primary root system, while reducing seed damage by fungal diseases that have arisen in result of internal seed infection [1, 4]. In this connection, these preparations can be used in the process of presowing treatment of seed material, as well as plant growth stimulants for growing most crops
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