• The complex micro-macro-fertilizer "optimal-MIX" designed for local soil-climatic conditions, but at the same time shows excellent performance in various regions. • Ratio of microelements is balanced and effectively applicable to all kinds of crops. Inapplicability is not revealed. • Minerals included in the products are biologically active (chelated) form and the closest to the natural compounds so easily and quickly absorbed by plants. • A set of "optimal-MIX" greatly exceeds similar preparations of trace elements in hectare normal. • The cost for one gram of trace elements in chelate form in "optimal-MIX" is much lower than peers. • The complex consists of components that are regulators of growth and demonstrate antiviral properties. • A set of "optimal-MIX" is in liquid form, so it is soluble and easy to use. • The complex is a concentrate and therefore reduces costs. • Moreover, the components compatible with most plant protection products and can be used simultaneously, which also reduces costs. • A set of "optimal-MIX" has a natural fungicidal properties (because they contain ions of copper and zinc), reducing the rate of disinfectant in the pre-sowing treatment of seeds by 30% and increase resistance to various diseases for foliar feeding. • Possess film-forming and adhering properties, which uniformly covers the seed and leaf surface and effectively absorbed by plants. • Are composed of nitrogen, phosphorus and potassium available to the crop form. The list of actions of the complex identified in the testing and application: 1. increases the germination energy and germination of seeds, enhances root formation; 2. increases resistance to overcooling, overheating, lack or excess of light and moisture, etc. 3. optimizes photosynthesis, eliminates chlorosis of plants; 4. strengthens the immune system and resistance to disease; 5. contributes to the accumulation of protein and gluten; 6. increases productivity of nitrifying bacteria in the soil and fixation of atmospheric nitrogen; 7. increases the effectiveness of macrofertilizers, promotes full absorption of nutrients; 8. accelerates intracellular transformation of nitrates in an easily digestible amine components and amino acids; 9. enhances flowering and acceleration of maturation of plants; 10. increases the number of grains in the ear. 11. increases the yield of crops.