Authors: D.A. Sokolov, S.L. Dobryanskaya, V.A. Androkhanov, S.Yu. Klekovkin, I.N. Gossen, S.I. Zherebtsov, N.V. Malyshenko, K.S. Votolin, Zh. Dugarzhav

Title of the article: Assessment of the structural-group composition of humic ac-id from brown coals impact on their biological activity in conditions of technogenic

Year: 2018, Issue: 5, Pages: 90-99

Branch of knowledge: Chemical technology

Index UDK: 631.417.2 : 631.95

DOI: 10.26730/1999-4125-2018-5-90-99

Abstract: The biological activity of humic acids produced from the coals of the Kansk-Achinsk and South Ural basins was evaluated by means of phyto-testing in a series of laboratory and field experiments. It was found that humates obtained from naturally oxidized forms of brown coal have higher biological activity. It was shown that in conditions of sufficient moisture the effectiveness of products is determined by the degree of their aromaticity, with a deficit of moisture – by hydrophilic-hydrophobic parameter. The noted changes in the rela-tionship of biological activity and parameters of the structural-group composition of humates show that the choice of raw materials and methods of production should be aimed at the formation of properties of humic acids adequate for edaphic, macroclimatic and weather conditions of use.

Key words: Humic products biological activity technogenic landscape reclamation phyto-activity index energy of seeds germination technogenic eluvium the fertile layer of the soil

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