Chelated fertilizers (monofertilizers) get its name from the Greek word chele, which means “claws” or “crab’s claws.” A chelate of micronutrients is formed in a chemical process after combining a chelating compound, with a metal cation, such as Fe, Mn, Zn or Cu. This structure of the fertilizer allows the plant to absorb nutrients more easily and to be up to 4 times more effective than conventional fertilizers.
Usually, plants assimilate from 20% to 40% of applied fertilizers, in comparison the rate of assimilation of chelated fertilizers reaches almost 80%, which makes them many times more effective than ordinary organic and mineral fertilizers.

Types of chelated fertilizers

The composition of our monofertilizers is based on monoelements, which are produced either on the basis of organic polyborates or microelements in chelated form. But they are used to compensate for the lack of one or another element in the active phase of plant development. Chelated monofertilizers include our micronutrients, which are based on zinc (Zn), copper (Cu) and manganese (Mn) chelates. Freya-Aqua™ (B) Boron, Freya-Aqua™ (Mo) Molybdenum and Freya-Aqua™ (B+Mo) Boron+Molybdenum monofertilizers belong to the class of micronutrients based on organic polyborates.

These are concentrated solutions supplied in 10- and 20-liter canisters and can be used both independently and in combination with humic microfertilizers before planting or for foliar feeding during active vegetation.

  • Freya-Aqua™ (Zn) zinc
  • Freya-Aqua™ (Cu) copper
  • Freya-Aqua™ (Mn) manganese

The effect of using chelated fertilizers

Chelated fertilizers for the garden, vegetable garden and fields allow:

  • to prevent the deficiency of a certain trace element in the plant;
  • to increase the yield of vegetable, field and fruit and berry crops by an average of 20%;
  • improve the formation of the root system;
  • improve the plant’s assimilation of nutrients from the soil or other types of fertilizers;
  • to improve the drought resistance of crops;
  • activate the process of chlorophyll synthesis and respiration, increase the productivity of photosynthesis;
  • to improve winter hardiness of plants (chelated fertilizers for flowers, trees, grapes, winter cereals);
  • prevent damage to plants by fungal and other diseases;
  • increase the sugar content of fruits and berries;
  • increase the activity of soil microbiota.
  • Amino acids, which are part of fertilizers, have a chelating effect and ensure better penetration of trace elements into plant cells.

The method of using chelated fertilizers

All types of chelated fertilizers must be prepared immediately before use. The concentrated solution is diluted with water in the proportion indicated on the canister. Average consumption of the prepared mixture:

  • for field crops: 170-250 l/ha;
  • for vegetables: 200-400 l/ha;
  • orchards and vineyards: 500-1200 l/ha.


You can get the price of chelated fertilizers, methods of use, preparation calling our managers:

Frequently asked questions about monofertilizers (chelates)

How to determine the compatibility of fertilizers based on chelates with other mineral fertilizers?

Prepare the working solution immediately before application. Fill the tank of the sprayer by 2/3 with water and, with the agitator turned on, pour in the estimated amount of solid mineral fertilizers. After their complete dissolution, add chelated fertilizers. Fungicides and insecticides should be added last, previously dissolved in a separate container. The difference between the temperature of the air and the working solution should not exceed 8-10°C

Is it possible to apply other types of fertilizers, pesticides, insecticides to the soil at the same time as monofertilizers based on trace elements in chelated form?

It is possible, negative actions were not detected if the proportions were observed.

How to determine which elements the plant lacks?

By conducting field diagnostics using a mobile laboratory. We have these services on our website in the “Mobile laboratory” section.

How often should fruit trees be nourished with chelated monofertilizers?

Apples, pears, ivy, apricots, cherries, peaches and plums are recommended: from pre-bloom to maturity at 14-20 day intervals (last treatment 15 days before harvest).