It is proposed to select the technology for harvesting hay rolls according to a complex efficiency criterion, including the actual and required values of the following particular indicators: the productivity of the technical means for one hour of shift time, the complexity of loading and unloading and transport operations, fuel and lubricants costs, the cost of technical means and damage to hay rolls, as well as their relative importance. It is determined that for the adopted technology of

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... sting hay rolls, the complex efficiency criterion is 52, and for the proposed technology based on the application of the developed technical means for loading hay rolls without the use of auxiliary machines and without stops, it is 272.