Estimation of the optimal cu content in different soil types based of the dynamic model forcopper accumulation in aboveground partsand roots (on the example of barley Hordeum vulgare L. plants)

Copper is one of the essential microelements for both animals and plants and plays an important role in a number of physiological processes. However, it becomes toxic to plants when entering high concentrations. The urgency of the work to determine the optimum and critical levels of copper content in soils, especially in the agricultural production, is caused by permanent technogenic pollution of soils with heavy metals. An increase in the content of copper in soils can cause changes in biochemical processes in plants, their morphology, and, ultimately, reduce productivity.The construction of complex dynamic models of heavy metals entering plants is not always justified, since most of the coefficients can be obtained only in laboratory experiments under conditions which are very different from natural ones. In our experiment, it was shown that it is possible to determine optimal and critical levels of soil contamination by heavy metals on the basis of an analysis of the dynamics of their accumulation in different parts of plants...