Abstract
The samples of humic preparations (HPs) containing macro and trace elements for plant nutrition were obtained based on humic acids isolated from brown coal of the Tisul deposit in the Kansk-Achinsk Coal Basin. The biological activity of the humic preparations was tested under laboratory and field conditions with the use of Iren and Novosibirskaya 89 varietal wheat seeds. A comparative assessment of the effects of the concentrations of various elements in the HPs on the growth parameters and productivity of cereals was carried out. The edaphic properties of soil substrates should be taken into account for a more effective use of humic preparations.
Highlights
The yield and quality of agricultural products cannot be increased without the use of advanced technologies, including the use of biologically active substances
The aim of this work was to study the biological activity of complex humic preparations based on native (HumNa) humic acids and humic acids modified with hydrogen peroxide and containing macro and trace elements
The vessels were transferred to a thermostat (t = 26°C), where they were kept in the dark for 72 h
Summary
The yield and quality of agricultural products cannot be increased without the use of advanced technologies, including the use of biologically active substances. The ability of humic substances (HSs) to stimulate plant growth has been confirmed by many studies carried out using a variety of plant species cultivated under various conditions [1]. This beneficial effect of HSs on the development of plants is reflected in both the growth of roots and seedlings and in the yield. The structure of HSs, the presence of aromatic and aliphatic domains, which include O-, N-, and S-containing functional groups, mobility, aromaticity, and hydrophobicity can affect the activity of enzymes, the stimulation of root growth and increase of the biomass.
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