Biotesting and toxicological assessment of synthesised humic preparations
DOI:
https://doi.org/10.52754/16948610_2026_1_18%20Keywords:
humic substances, iron preparations, synthetic chelates, bioavailable iron preparations, biotesting, toxicological testingAbstract
An acute problem of modern agriculture is the lack of safe and effective preparations of biologically available iron. Iron deficiency in plants causes a disease accompanied by growth inhibition, which leads to a decrease in yield and nutritional value of agricultural products. To correct this disease, either soluble iron salts are used, which are ineffective in low doses and toxic in high doses, or synthetic chelates (Fe-EDTA, Fe-DTPA, Fe-EDDGA and others). Minimization of the impact of chemicals on agroecosystems can be achieved by replacing environmentally aggressive agrochemicals with safe analogs obtained from natural materials. Promising raw materials for obtaining such materials are humic substances (HS). The aim and objectives of the study are to obtain iron-containing humic preparations presented in the form of iron humates, as well as highly dispersed oxides stabilized by humic substances, and to determine the possibility of their practical use as stimulants for plant growth and development.
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