MODELING OF BALANCE OF BIOGENIC ELEMENTS IN THE CONDITIONS OF THE SOUTH OF UKRAINE

Abstract

South of Ukraine belongs to the zone with favorable conditions for growing a large number of agricultural crops (cereals, technical, fodder, vegetable, melons and others), with the exception of moisture conditions. Nevertheless, in order to obtain high and sustainable crops in this territory, it is necessary to use mineral and organic fertilizers, due to the insufficient content of organic matter in the soil. The composition of mineral fertilizers includes a large number of nutrients, the main of which are nitrogen and phosphorus. Simulation, as a modern method of estimating and forecasting possible changes in the state of the environment, is becoming more widespread. In the framework of the work, using the method of estimating the balance of biogenic elements and a mathematical model that allows predicting the yield level, a modeling of the balance of biogenic elements in the territory of the South of Ukraine was performed. The calculations were carried out according to the data of 2010-2015 on the whole territory, taking into account the area of agricultural plants, the norms of mineral and organic fertilizers and areas, which were applied to certain types of fertilizers, while analyzing mineral and organic fertilizers for the last 25 years. The balance consisted of the introduction of nutrients with fertilizers (the incoming part of the balance sheet) and the absorption of nutrients by the root system of plants for the production of crops (the fractional part of the balance).