ИСТИНА

Modern agricultural production couldn’t be imagined without efficient and effective use of crop protection chemicals (fungicides, herbicides, insecticides, etc.). Fungicides, in particular, from the class of triazoles tebuconazole, has a wide range of systemic effects, namely, along with protective, treating and eradicating properties, preparation has and growth-regulatory action that may go into retardant under adverse conditions (lack of moisture, soil moisture, too deep placement of seeds, their low germination energy and germination). As a result, tebuconazole may cause some damage to crops of cultivated plants [1]. To eliminate these negative effects of fungicide resistance inductors are used to crop phytotoxicants - natural stimulants that stimulate the adaptive capacity of cultivated plants. The use of natural stimulants in a mixture with the fungicide seems preferable not only for economic reasons (increasing grain yield), but also the biological effects (reduced toxicity of the fungicide action on crop plants and lithosphere layer of soil). The present work is devoted to the creation of multi-component compositions comprising in its composition fungicides (tebuconazole) and natural antidepressants (polysaccharides). To accomplish this, use the original solid state technology mechano-chemical modification of the properties of tebuconazole due to the synthesis of supramolecular complexes such as "Guest (tebuconazole) -Host (polysaccharide)" [2]. The synthesized complexes of tebuconazole with several polymers (Na-CMC, hydroxyethyl starch, PVP, arabinogalactan et al.) have high biological activity: - complexes positive effect on the germination of seeds soft spring wheat “Novosibirsk 29”; - effectively inhibit the growth of pathogenic microorganisms and therefore weevil treated with this composition, gave 100% normally developed seedlings, whereas in the control (no drug treatment) and standard (Raxil SC 60) was observed only 73.4% and 91.2% of healthy grains respectively; - positively influenced the growth process, namely, the seed treatment composition of the proposed increase in the number of roots (+ 4.7%), their length (+ 32%) and air-dried biomass (+ 23.9%); - showed a high level of health-improving effect on the root system of spring wheat grown on soil with a high density of spores phytopathogen Bipolaris sorokiniana; - was effective in the field experiment to limit the destruction of plant pathogens common wheat root rot. Continuation of our research will enable a better understanding of the processes occurring in the processing plant compositions, as well as mechanisms to protect the crop from the negative effects of fungicide residues in the soil.