Production Technologies

Our fertilisers are produced in two modern production plants - in Poznań and in Wrocław-Złotniki.


ADOB®’s advanced microgranular fertiliser production technology

We use modern, sophisticated equipment to produce our microgranular fertilisers. The production lines operate in a continuous mode, which significantly increases the effectiveness of the whole process. The entire production process is carried out within a closed system, which means that the products cannot be contaminated by external factors.

The technology consists of two processes: spray drying and fluid-bed granulation. Advanced measurement apparatus, automation and specialised software ensure that the proper course of microgranules build up. Generally, the production unit for a particular microgranular product consists of specific subunits. Each one performs a specific production process:

A) The first subunit is a fertiliser solution tank. Stainless steel/plastic tanks adapted to winter or summer conditions store the fertiliser solution. The other component of this subunit is an automatically-controlled system that doses the fertiliser solution into the next subunit.
B) The second subunit is the drying and granulation chamber, in which the fertiliser solution is sprayed against a stream of hot air, causing the water to evaporate. Solid particle enlargement and wet granulation also occur at this stage.
C) The last subunit is a pneumatic system. The dust-free granules are formed into raspberry-shapes, ranging in size from 0.3 to 0.9 mm.

ADOB®’s sophisticated HBED chelate production technology

Our Company’s multi-stage, unique technology for the synthesis of the chelating agent HBED is subject to a global patent. The process is carried out in chemically resistant reactors, using advanced organic chemistry which includes recycling of the organic solvent and water. Applied raw chemical materials and unit operations enable us to obtain a chelating agent of high purity, which prevents the formation of ortho-para and para-para isomers. The HBED chelate production technology allows us to manufacture products in liquid formulation ( e.g.Fe(III)HBED 3%) and in solid formulation, (e.g. Fe(III)HBED 7%). The first batch of liquid micronutrient chelate is subjected to crystallisation and drying processes in order to obtain soluble microgranules. The final HBED product is characterised by high chemical stability under soil conditions as well as under hydroponic application systems.
ADOB’s® Fe(III)HBED production process is a worldwide patented, ground-breaking technology and the final product is an alternative to Fe(III) EDDHA and Fe(III) EDDHMA.

ADOB®’s modern liquid fertiliser production technology

The production processes of our liquid fertilisers are based on our inhouse-developed technological know-how. The main apparatus are specially equipped tanks, which contain the liquid raw materials, reactors of different capacities and storage tanks for the finished products. The raw materials include acids and mineral bases, as well as auxiliary raw materials. The production processes are carried out in several sequential stages within the reactors, under rigorously controlled temperature and pH. The order of dosing the raw materials, their mutual proportions and the mixing and heating times depend on the type of fertiliser.

The production process involves the following steps. First, the liquid raw materials are dosed into the reactor. After mixing them, the solid raw materials are added into the reactor. The micronutrients are then administered in the form of chelates. Following this, the resulting solution is purified by removal of contaminants during fine filtration. Finally, pH and density are fine-tuned according to the specific character of the fertiliser. After gradual cooling, the final product is pumped into storage tanks.


ADOB®’s meticulous magnesium sulphate, calcium nitrate and magnesium nitrate production technology

The production processes of magnesium nitrate, calcium nitrate and magnesium sulphate are carried out according to ADOB®’s patented technologies that can produce both liquid and solid formulations. The final products are subjected to chemical and thermal treatments in order to remove the post-reaction residues, insoluble substances and heavy metals. Excess water is evaporated to achieve the optimal concentrations of calcium and magnesium for crystallisation. The product is then crystalised and cooled down.

The magnesium sulphate fertiliser produced by ADOB® is marketed in two formulations: crystalline (as a heptahydrate salt) and microgranular (as a dihydrate salt).

Calcium nitrate dihydrate and magnesium nitrate hexahydrate are produced in a solid formulation, based on the continuous crystallization technology at a temperature of alloy crystallisation. These technologies result in ADOB®’s unique crystallised salt, flake and pastille product forms. All ADOB®’s products are characterised by high purity, an absence of anticaking substances and an extremely low concentration of heavy metals. The application of crystallization processes and the flake form of products allow us to compose solid calcium and magnesium nitrate mixtures customised according to the individual needs of the client.

The combination of crystallization processes, augmented by the addition of micronutrient fertilisers in a chelated form, enables production of derivatives of calcium and magnesium nitrate, enriched with micronutrients. These complex fertilisers are the key for optimal crop performance.

ADOB®’s technology to produce compound crystalline fertilisers

ADOB®s solid NPK fertilisers, enriched with micronutrients, are a physical mixture of the inorganic raw materials, magnesium sulphate and chelated (EDTA and IDHA) micronutrients. The production process requires highly precise equipment. To meet this need, ADOB® is equipped with a state-of-the-art plant dedicated to the production of fully soluble crystalline NPK fertilisers. Our production devices include electric hoists, weight dosing dispensers, screw conveyors, loading hoppers, mixers with electric hoists, catch basins, dust collectors and a packing system.

Our weight dosing dispensers ensure the precise dosing of the predetermined amounts of raw materials. This guarantees an optimal input of raw materials, the precise composition of the final product and a highly efficient production process.

The production process is carried out in the following steps. Firstly, the raw materials are prepared and placed in weight dispensers. The raw materials are then transported to the intake hopper and dosed into the mixer. The components are mixed thoroughly and the resulting product is fed into the packing line.

A raspberry-shaped fertiliser granule


Perfect, uniform, contamination-free, dust-free and free-flowing, with a characteristic raspberry structure.


Quickly and easily soluble in water


Produced with respect for the natural environment with a trace of ammonia, low electric energy consumption, and complete avoidance of harmful formaldehydes.

Fertiliser’s micro-granules; images obtained with a scanning electron microscope