Prospects for the agricultural crops use in phytoremediation of oil-contaminated soils

As part of the study, the reaction of some plant crops to the presence of petroleum hydrocarbons in the soil was studied. The paper presents data from a model experiment in which the following test crops were planted on arti-ficially oil-contaminated soil: garden radish (Raphanus raphanistrum subsp. sativus) and meadow clover (Trifolium pratense). Experiments with test crops were carried out in three containers with ready-made soil, which was previously contaminated with oil in various concentrations (2.5; 5; 7.5 g/kg), reflecting low, medium and high degrees of contamination. The seed germination parameter and the average root length were used to assess the effect of the pollutant on the test crops. ISS 2038–84 “Seeds of agricultural crops” was used to calculate germination. “Methods for determining germination”, ISS R ISO 18763-2019 “Soil quality” was used to calculate the average root length. Determination of the toxic effects of pollutants on germination and growth in the early stages of higher plants”. In determining the phytotoxicity of oil, garden radish (Raphanus raphanistrum subsp. Sativus) and meadow clover (Trifolium pratense) have demonstrated a high potential for use in phytoremediation of oil-contaminated soils. All this makes it possible to consider these species as objects of phytoremediation of oil-contaminated soils. Depending on the degree of contamination, it is important to select species that can grow in unfavorable conditions of oil pollution.