Open AccessASSESSMENT OF CHANGES IN THE CONCENTRATION OF HERBICIDES IN THE SOIL
Author(s) -
Svetlana A. Stepanova,
Г. В. Симонова
Publication year - 2020
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2020-8-2-56-61
Subject(s) - permanganate , environmental chemistry , environmental science , glyphosate , titration , decomposition , chemistry , oxalic acid , agronomy , inorganic chemistry , biology , organic chemistry
The article is devoted to the assessment of changes in the concentration of herbicides in the soil, the study the effectiveness of different methods of decomposition fertilizers introduced into the soil, and the analysis factors involved in this process. In most cases, herbicides are difficult for decompose compounds, for which only 4-5% of the introduced substance is used for its intended purpose, and the rest of the mass is stored in the soil, passing from it to other systems (grass, natural water sources), creating complex ecological Problems. For research, the Tornado herbicide containing 45.5% (by weight) glyphosate was used.Both natural and artificial decomposition of impurities are considered. Quantitative measurements were carried out by the method of back titration. The amount of residual permanganate in the soil determined the titration by a solution of oxalic acid with a known concentration. It is shown, that artificial oxidation of soil contaminated with excess herbicide is most efftiсient.