Under the experiment, we have given an impact assessment of a natural salt solution with herbicide activity on the chemical properties of a quazizemon the highway slope. We have used crude raw brines from the Troitsky deposit of the Krasnoyarsk Territory to study the action mechanism of natural salt with a concentration of 30% on the plant-soil system and the change in its chemical status. According to studies, the natural salt application as an herbicide caused soil alkalinization by 0.11-0.13 pH units while maintaining a neutral response of the soil solution and a composition change in the salts of the aqueous migrate. The maximum amount of toxic salts with a prevalence of NaCl and MgCl2 in the aqueous migrate is found in the variant of 30% natural salt solution + adjuvant Satellite, L.A single treatment of plants by a 30% salt solution with and without an adjuvant defined the occurrence of a weak salinity level of 0-20 cm of the quazizemlayer.A retreatment resulted in the average salinity level in the variant of 30% natural salt solution + adjuvant Satellite, L.The alcalination of the quazizemis impossible.