The influence of different systems of fertilizer on the microelement’s composition of soil and grain of winter wheat in Primorsky Krai

This paper presents the effect of the aftereffect of mineral, organic and calcareous fertilizers on the agrochemical and environmental indicators of meadow-brown bleached soil of Primorsky Krai. The accumulation of microelements by the winter wheat grain is considered according to the variants of experience. Field experiments were carried out in 2011-2014 in the crop rotation of the agrochemical station of «Federal Scientific Center of Agrobiotechnology in the Far East named after A.K. Chaika». The content of trace elements in soil and grain was determined on a Shimadzu AA-6200, atomic adsorption spectrophotometer. According to the results of our research, it was revealed that the aftereffect of various fertilizer systems affected the content of a number of gross and mobile forms of microelements in the studied soil. It is established that the soil does not prevent the accumulation of mobile forms of nickel, lead, cadmium, zinc, copper and cobalt in it. The ability to resist contamination of the food chain (system barrier), that is, the manifestation of the protective mechanisms of the grain, from nickel, copper and cobalt varies only slightly according to the variants of experience. For lead, cadmium and zinc, the barrier of the system is in the moderate degree of dispersion of data on the variants of experience, showing more effective protective capabilities on the variant with the aftereffect of the lime-organic fertilizer system, where the content of the latter reaches its maximum values.