Chelated micronutrients are widely used in agriculture and are strongly promoted by the fertilizer industry. Iron, manganese, zinc and copper react with the ions found at high pH to form insoluble substances. As a result, the nutrients are made unavailable to plants. The organic coating in the chelate prevents these reactions from occurring in the soil. EDTA is the most common synthetic chelating agent and is used for both soil and foliar applied nutrients. Ricombi have been developed for conditions where the deficiency of a wide range of micronutrients is found in plants due to certain conditions (high PH, water prolonged, negative effects caused by deficiency or excess of other elements, etc.) and while the plant needs to get Fe, Mn, Zn and Cu micro elements quickly. Ricombi also increases plant resistance to plant diseases and stressful temperatures.