THE ELEMENTS CONTENT CHANGE IN THE ROSES VEGETATIVE ORGANS AND PEAT FOLLOWING FOLIAR TREATMENT WITH NANOSILVER IN GREENHOUSE CONDITIONS
In the greenhouse experiment the preparations of nanosilver dispersions in the concentration of 25 and 100 mg/l and surface-active substance (surfactant) as a stabilizer used for foliar treatment of roses exerted no influence on the macronutrients content in the leaves of roses. The treatment with nanosilver preparations decreased the content of monosaccharides 2 times or more and increased the content of disaccharides in the leaves of roses in comparison with the variant without treatments. Application of the nanosilver preparations, which were supplemented by the surfactant as a dispersion stabilizer, increased the share of protein nitrogen in the total nitrogen content in the leaves of roses. The iron content in the leaves and zinc content in the roots of the roses in the variant with the treatment with silver at a concentration of 25 mg/l increased. All observed changes in the composition of roses leaves and roots testified that the use of the nanosilver dispersions increased the intensity of biochemical protective processes.