Abstract
The paper presents the results of a survey of sod-podzolic soils for agricultural purposes and plants of reference sites of the Ivanovo region for the content of boron, copper, cobalt, manganese and zinc in them, conducted in 2014 and 2021. Correlation analysis determined the influence of individual physical and chemical properties of soils on the content and distribution of available forms of trace elements in the soil and the relationship between the trace elements themselves. Changes in the availability of trace elements of the soils of the plots have been established. According to the amount of content of available forms of trace elements in soils, the need for the use of micronutrients is determined. The sequences of crops were determined by the content of trace elements in grain and straw of cereals, the green mass of forage grasses, as well as the distribution of trace elements between parts of the grown crop. Grain, straw and green mass were evaluated for compliance with veterinary standards for the content of copper, zinc and cobalt in feed. The coefficients of accumulation of trace elements by plant products of crops are calculated and their comparative analysis is carried out. By the magnitude and sign of the correlation coefficients between the concentrations of trace elements in plants, the manifestation of antagonism and synergy between trace elements was determined. The Pearson and Spearman correlation coefficients between the content of mobile forms of trace elements in the soil and their content in plant products, as well as between the content of trace elements in grain and straw of cereals revealed their strength and the ambiguous nature of the relationships..
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