Effect of Prolonged Use of Chemicalization Agents on the Content of Cd, Pb, Cu, and Zn Fractions in Layers of Leached Heavy Loamy Chernozem

The content of heavy metal (HM) fractions in arable and subarable soil layers of a long stationary experiment with grain–grass–row crop rotation with legumes was studied. Mineral fertilizers were used on the background of liming and without it. Classical experimental methods, and methods involving t...

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Bibliographic Details
Published in:Russian agricultural sciences 2022, Vol.48 (Suppl 1), p.S139-S146
Main Authors: Pugaev, S. V., Prokina, L. N.
Format: Article
Language:English
Subjects:
Agricultural practices
Agriculture
Arable land
Biomedical and Life Sciences
Cadmium
Copper
Crop production
Crop rotation
EXPERIMENTAL ARTICLES Ecotoxicology
Experimental methods
Fertilizers
Heavy metals
Industry standards
Lead
Legumes
Life Sciences
Liming
Mineral fertilizers
Plant Biochemistry
Quantitative distribution
Soil layers
Tillage
Zinc
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Summary:The content of heavy metal (HM) fractions in arable and subarable soil layers of a long stationary experiment with grain–grass–row crop rotation with legumes was studied. Mineral fertilizers were used on the background of liming and without it. Classical experimental methods, and methods involving the standard sample of the enterprise (SSE) and the industry standard sample (ISS) were used in the study, and subsequent mathematical processing of data allowed for obtaining reliable results. The optimal options for the use of chemicals to create conditions for the cultivation of environmentally friendly crop production have been identified. It was shown that the chemicalization agents enhanced the fixation of Cd and Zn, while the quantitative fractional composition of Pb and Cu did not actually change in the experimental variants and soil layers. The strong tillage of the soil contributed to the leveling of the Zn content in the layers and their approximation to the level in the underlying rocks. The quantitative distribution of HMs in soil layers had the following form: without liming, acid-soluble forms Zn > Cu > Pb > Cd, mobile forms Zn > Pb > Cu > Cd; after liming: Zn > Cu > Pb > Cd and Zn > Pb ≥ Cu > Cd, respectively.
ISSN:1068-3674
1934-8037
DOI:10.3103/S106836742207014X