On the issue of substantiating the design parameters of storage tanks of high-precision machines for applying mineral fertilizers

Modern technical means for applying mineral fertilizers should ensure high quality of their distribution over the field surface. To a large extent, the uneven distribution depends on the type of distributing working bodies used. High distribution accuracy is provided by rod spreaders. However, for their stable operation, it is necessary that uniform metered fertilizer supply is carried out by transporting devices from storage tanks to distributing working bodies. For centrifugal spreaders, the uniform supply of fertilizers to the discs is also an important task. Rational geometric parameters of storage tanks minimize the likelihood of arches forming and fertilizers hanging, and also determine the productivity of machine and tractor units when performing technological operations to introduce chemicals for agriculture. The capacity of storage tanks is also an important parameter that determines the technical and economic efficiency of the fertilizer application process. On the one hand, compact mounted spreaders with a lifting capacity of 0.4–1.5 tons are characterized by high maneuverability and low material consumption. However, during application, they require a significant number of technological stops to reload new portions of fertilizers, which is the reason for a decrease in their productivity. In this regard, it is advisable to use mounted rod spreaders for applying fertilizing doses of fertilizers. Semi-trailer spreaders with a load capacity of 5 tons or more are suitable for applying basic doses of fertilizers in large areas, but their use is not always justified in small fields with a large number of obstacles. Consider the design features of technological tanks used on modern, high-precision technical means for applying mineral fertilizers, and presents analytical dependencies for determining their main design parameters.

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