Open AccessBiological accumulation of zinc and copper in the «Soil-plant» system in the conditions of the south of Western Siberia
Author(s) -
Н. Н. Жаркова
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/996/1/012010
Subject(s) - zinc , copper , chernozem , chemistry , hordeum vulgare , raw material , environmental chemistry , soil water , agronomy , environmental science , poaceae , biology , soil science , organic chemistry
The purpose of the work was to study the intensity of biological accumulation of zinc and copper Tanacetum vulgare in the conditions of Western Siberia. Field experiments were carried out in the period 2012-2015 on meadow-chernozem soil of the southern forest-steppe of the Omsk region. The medicinal crop Tanacetum vulgare was chosen as an object of research. Copper and zinc fertilizers in acetate forms were applied in the background (N 135 P 45 K 45 ). The content of mobile forms of Zn and Cu in soil and plant samples was determined by atomic absorption method. When zinc and copper fertilizers were applied, the content of mobile forms of Zn and Cu in the soil increased compared with the control and the ground. At the same time, application of micronutrient fertilizers did not lead to excess of MAC. The content of zinc in medicinal raw material Tanacetum vulgare changed from 25.3 to 48.0 mg/kg; of copper from 4.3 to 8.3 mg/kg after application of micronutrient fertilizers. The content of trace elements in medicinal raw material Tanacetum vulgare did not exceed MAL (Cu-30 mg/kg, Zn-50 mg/kg). To estimate the intensity of absorption of trace elements Tanacetum vulgare used coefficients of biological accumulation ( C ba Zn, Cu). According to values of coefficients of biological accumulation, Tanacetum vulgare intensively absorbed zinc ( C ba = 4, 59-16, 8) and very intensively and intensively copper ( C ba = 23, 33-48, 82). Thus, the studies showed that this crop is a copper concentrator, as C ba Cu > C ba Zn.