Igumnova D.S., Kuznetsov Yu.S.

Improving the problem solving of optimizing the agricultural crops placement in crop rotations of farms in the Belgorod region, taking into account the intensity of soil flushing

The article proposes a new way to solve the problem of optimizing the placement of agricultural crops on eroded lands in protective crop rotations. Optimality criteria for the problem: the volume of the washed-off soil should strive to a minimum. The required variables – the areas are given as a percentage of the total arable land area and are limited to minimum and maximum values. For the new method, a detailed description of the database compilation matrices in Microsoft Excel and the "Excel Solver" (Solution Search) application add-in is provided. The methodology for calculating the potential soil washout under agricultural crops in crop rotations has been revised, depending on the availability of crops on arable land during the snowmelt period. A unified formula has been developed for washing away soil under spring and winter crops.

Keywords: OPTIMIZATION PROBLEMS, STRUCTURE OF ACREAGE, EROSION CONTROL ORGANIZATION OF THE TERRITORY, ECONOMIC AND MATHEMATICAL MODEL, WATER EROSION OF LAND, SOIL FLUSHING