Abstract
The potential of using mineral fertilizers for the remediation of soils contaminated with petroleum products was analyzed. Experimental results are presented on the effects of mineral fertilizers on the recovery processes of soils polluted with TS-1 jet fuel. The soil’s self-purification capacity was assessed by measuring changes in polyphenol oxidase activity, which serves as a key enzymatic indicator of the soil's biochemical status. The experiments were conducted using artificially contaminated soil samples with various concentrations of jet fuel (10 tentative permissible concentrations, APC), followed by the application of mineral fertilizers with different N:P:K ratios (20:20:20; 6:18:36; 13:40:13; and 1.5:0.5:1). Based on the experimental data, it was established that mineral fertilizers can serve as effective biostimulants during the remediation of soils contaminated with jet fuel, and that polyphenol oxidase activity is a reliable indicator for evaluating the effectiveness of such interventions.