The effect of natural salt of various concentrations on the chernozem chemical properties

In the laboratory experiment, the effect of natural salt with herbicidal activity on the chemical properties of the soil is evaluated. To study the mechanism of action of natural salt with a concentration of 1, 5, 10, 15, and 20% on the plant-soil system and the change in chemical state, untreated natural brines of the Troitsk deposit in the Krasnoyarsk Territory were used. Studies have found that the use of natural salt as a herbicide determined alkalinization of the soil by 0.2-0.7 units pH while maintaining a neutral reaction of the soil solution, increasing the amount of exchange bases by 1.0 mmol / 100g, changing the composition of the aqueous extract. The maximum amount of toxic salts with a predominance of NaCl in the aqueous extract was found in the case of a 5% concentration of natural salt. A salt concentration of 5 and 10% determined strong salinization of the soil, 15 and 20% - strong. The concentration of natural salt of 5% and above determined the possibility of further soil alkalinization.