The environmental friendliness of agricultural production is becoming increasingly important in modern conditions against the background of other performance indicators. The problem of competitiveness in the context of modern problems of the market economy and the sanctions policy of the West is one of the main ones that require an early solution. In parallel with livestock production, the production process produces by-products such as manure. Modern technologies for keeping animals involve the use of hydraulic washing of manure from production premises. As a result, a place to store this by-product and a place to store it or to process it synchronously is required. Such places for accumulation, storage and processing are near-farm manure storages. The required area of these manure storage facilities depends on the technology of liquid manure processing. The purpose of the study is to substantiate the parameters for optimizing the liquid manure processing at the stage of the accumulation cycle in near-farm manure storage facilities with the provision of modern environmental requirements for the processing of livestock waste. The studies used a system analysis method and a modeling method. According to the system analysis methodology, the process of manure movement along the process cycle is presented as a chain of individual operations with the corresponding input and output connections, the parameters of which must be determined during the study. To deepen the connections and clarify the parameters of these connections, the liquid manure processing unit in near-farm manure storage has developed an optimization model for liquid manure processing. The use of this optimization model will make it possible to determine the most optimal option when building a liquid manure processing line in the near-farm manure storage facilities, which in turn will reduce the cost of liquid manure processing, decrease areas of near-farm territory by shortening of processing time and ensuring a balance between the production and liquid manure processing. The economic efficiency of crop production will also increase due to the provision of the necessary volumes of high-quality liquid organic fertilizers for their application.

Golovko Aleksandr N., Hatsenko Alexander V.

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