## 3 Results and Discussion
The calculated correlation coefficients implicate a significant increase in the content of this macronutrient alongside the increasing fluorine soil pollution only in the case of the aerial parts of phacelia (\(r\) = 0.76 **) and the grain (\(r\) = 0.67 *), straw (\(r\) = 0.86 **)m and roots (\(r\) = 0.76 **) of spring triticale. [PERSON] et al. [40] observed that the lime and charcoal application to soil has most contributed to the reduction of sodium content in phacelia, especially in the roots. Different results were obtained in other studies [41]. In this research, the sodium content in _Zea Mays_ L. increased from a few to over a dozen percent after calcium oxide application compared to the objects without neutralizing substances. Charcoal, similar to lime, did not limit the adverse effect of fluorine on shaping the sodium content in plants. In this series, the average content of sodium was lower in the vast majority of the test plants and in their organs, except the aerial parts of narrow-leaf lupine and spring tritticale. The highest decline in the average content of sodium relative to the control was marked in the aerial parts and roots of yellow lupine (by 28 and 40%, respectively), the aerial parts (\(-\)24%) and roots of winter oilseed rape (\(-\)35%), and the aerial parts of phacelia (\(-\)30%). Trends in the concentration of sulphur in plants in this series of trials were similar and showed no significant differences in comparison with the series unpolluted with fluorine. [PERSON] and [PERSON] [42] showed that the addition of charcoal to the soil did not limit the negative effects of this contaminant on sodium content in white mustard. This decrease was 11% in leaves and 13% in the roots. Line also limited the sodium content in the aerial parts and the roots of this plant species. In the series with loam as a soil amendment, there was a tendency towards decreasing concentrations of sodium in most plants under the impact of fluorine soil contamination. A positive correlation between the fluorine dose and the sodium content of a plant was only determined for the grain (\(r\) = 0.77 *), straw (\(r\) = 0.99 **), and roots (\(r\) = 0.75 **) of spring tritticale (\(r\) = 0.80 **). The biggest decrease in sodium content relative to the control treatment was noted to have occurred under the influence of the most severe soil pollution with the xenobiotic. Moreover, a larger decrease appeared in the roots than in the aerial parts of the test crops. Thus, the highest decrease of over 30% compared to the control was determined in the roots of winter oilseed rape (\(-\)37%), the roots of phacelia (\(-\)35%), and the roots of yellow lupine (\(-\)31%). A similar tendency was recorded by [PERSON] et al. [43]. In their research, the lime and loam application significantly reduced the sodium content in _Brassica nigra_ L. [PERSON]. In our own research, a tendency to decrease the sodium content was generally observed as a result of soil contamination with fluorine. Loam formations are generally characterized by a higher content of fluorine in contrast to soils, e.g., sandy. At the same time, in this type of soil, we observed higher contents of other elements such as aluminum, calcium, magnesium, or sodium [44]. This is also confirmed by our results regarding the chemical composition of the additives used (Table 1). Therefore, the decrease in sodium content in most of the plants tested in this series of experiments is likely due to the fact that fluorine has a strong affinity for these elements and forms sparingly soluble compounds with them, thus contributing to their limited uptake by plants. The application of loam in some cases contributed to a slight increase in the sodium content in relation to analogous objects without additives. Such a relationship was observed in the roots of winter rape, the aerial parts of narrow-leaved lupine, the aerial parts and roots of black radish, both organs of phacelia, and the straw of spring tritticale. Similar relationships were shown by [PERSON] et al. [45].