Phytomeliorative properties of plants of Lavandula angustifolia L. in conditions of cultivation in the Forest-steppe zone of Ukraine

Abstract

The purpose. To determine the content of inorganic elements in soil and plants of lavender, and also in a product of its processing — oil. Methods. Samples of soil and plants were incinerated in nitric acid in system of microwave preparation of samples Milestone Start D and then they detected the content of inorganic elements on ICP-MS Agilent 7700x. Data processed with the use of techniques conventional for farming agriculture, plant growing and statistics. Results. The content of metals in soil of experimental soils and plants of lavender is fixed. Plants of lavender accumulated a significant amount of aluminium, barium, calcium, iron, magnesium, potassium, strontium, and zinc. The content of potassium, magnesium, barium, chrome and rubidium in a product of processed plants of lavender — oil — decreased in comparison with the content of metals in plants. The content in oil of aluminium, beryllium, cadmium, calcium, cesium, chrome, copper, iron, lead, manganese, molybdenum, sodium, silver, strontium, thallium, vanadium, and zinc was below the level of detection on ICP-MS Agilent 7700x. Conclusions. At environmental pollution by products of anthropogenous activity it is necessary to develop rational ways of neutralization of their negative agency. Intensity of processes of pollution depends on distance to the source of contamination, and specificities of objects of pollution. Plants of lavender can be used as ornamental crop owing to it phytomeliorative property to accumulate significant amount of metals from soil. Thus, the product of lavender processing — oil — contains residual amount of metals. The content in oil of aluminium, beryllium, cadmium, calcium, cesium, chrome, copper, iron, lead, manganese, molybdenum, sodium, silver, strontium, thallium, vanadium, and zinc was below the level of detection on ICP-MS Agilent 7700x.