Engineering of Humic Acids in Biostimulants of Plant Growths

The generalization of literature data and the results of our scientific research over many years has led to the conclusion that physicochemical effects on natural organic materials can be key in the manifestation of their biological activity to reduce the toxicity of pollutants in the environment and improve plant growth. The bioactive properties of humic substances were studied using luminol-dependent luminescence and bioluminescence. It was shown that humic substances have the highest physiological activity for germination of wheat seeds at the concentration of 0.01 g/l. Possible to reduce the concentration of humic substances by the mechanoactivation or the UV-irradiation. The results of this work are promising for the development of approaches for the biological recultivation of polluted or depleted lands using humic preparations isolated from peat. The evaluation of morpho-physiological responses of wheat and the enzyme activity of a soil in presence of an irradiated humic acids were discussed.