Petrochemical Products

UREA N46%

Technical specification

Urea is nitrogen fertilizer with high contents of an active substance – 46%. The chemical formula of the urea is close in composition to the organic formulation of the urea, which also provides for a number of advantages in the mass use for feeding crops.The interaction of the fertilizer with the soil environment passes in a very different manner as compared to the ammonium nitrate. At the emission of an active substance from the urea, to get to the form most accessible for the plants, the nitrogen passes through the three most significant processes related to its capture and fixation. Some of the processes are purely chemical, others are biological or physical.Urea is nitrogen fertilizer with high contents of an active substance – 46%. The chemical formula of the urea is close in composition to the organic formulation of the urea, which also provides for a number of advantages in the mass use for feeding crops.

The interaction of the fertilizer with the soil environment passes in a very different manner as compared to the ammonium nitrate. At the emission of an active substance from the urea, to get to the form most accessible for the plants, the nitrogen passes through the three most significant processes related to its capture and fixation. Some of the processes are purely chemical, others are biological or physical.

After urea gets into the soil, it is subject to dissolution from soil moisture, after that a part of it passes through the process of nitrification and nitrate anion (NO3-) is obtained, which is food accessible for the plants. Another part of the products gets in the microorganisms and feeds their metabolic processes, a process of ammonification passes after these microorganisms die out, followed again by a process of nitrification at which the nutritional form of the nitrogen is obtained.

This determines more uniform course of the processes in which urea gradually delivers its active substance in the soil to the plants.

Technical characteristics

CompositionNorms
1. Total contents of Nitrogen46.0% ± 0.6%
2. Amide Nitrogen46.0% ± 0.6%
3. Biuretmax. 1.2%
4. Watermax. 0.6%
5. Granulometry from 2 to 5 mmmin. 95%

Di-Amonium Phosphate (DAP)

Technical specification

Diammonium phosphate (DAP or diammophos) is a complex, highly concentrated, granular mineral fertilizer with excellent physical properties. It contains two main nutrients in its composition — 18% nitrogen (N) and 46% phosphoric pentoxide (P2O5) or in total 63% of active substance. It is obtained through a reaction between phosphoric acid (P2O5) and ammonia (NH3). It is incompatible with other alkaline chemicals due to the fact that its ammonium ions turn into ammonia when they get into medium with higher рH. This product of high quality is easily input into the soils, it is highly soluble, it is not hygroscopic and has a granular form with equal in size granules, which is evenly dissipated along the soil surface.

Diammonium phosphate is used for pre-sowing fertilization of winter and spring crops under irrigation conditions. It is suitable for fertilization of soils rich in potassium. Because of the fact that it is water-soluble, it has the properties of fast-acting phosphorus fertilizer, and the low mobility of the phosphorus in the soil allows its use for main, stocking as well as for periodic fertilization. No additional pre-sowing fertilization with nitrogen is needed in autumn crops.
It may be applied directly into the soil with the help of conventional equipment for spraying.

It is stored in well ventilated, cool and dry storehouse premises which do not allow for moistening or direct sun heating.

Heating, leaving it in the open air, mixing with water or with strong bases and with sodium hypochlorite should be avoided.

It is transported packaged or in bulk. Agropolychim AD offers diammonium phosphate in packages of vent cassette bags of polythene and prolypropylene, in bags of 50 kg, 500 kg and 1000 kg.

Technical characteristics

PARAMETERNORMHarmonized analytical standard
Total Nitrogen (N), %18,0 ± 1.5BDS EN 15750
Ammoniacal Nitrogen, %18,0 ± 1.5BDS EN 15475
Total Phosphorus pentaoxide (Р2О5), %46,0 ± 1.5BDS EN 15956 ; BDS EN 15959
Phosphorus pentoxide (P2O5), soluble in neutral ammonium citrate, %46.0 ± 1.5BDS EN 15957; BDS EN 15959
Phosphorus pentoxide (P2O5), soluble in water, %42.0 ± 1.5BDS EN 15958; BDS EN 15959
Content of water*, %max 2.0BDS EN 13466-1
Cadmium (Cd)*, mg/kg Р2О5max 60BDS EN 16319 + А1
Hexavalent Chromium (Cr VI)*, mg/kg dry mattermax 2BDS EN 16318 + А1
Mercury (Hg)*, mg/kg dry mattermax 1BDS EN 16320 + А1
Nickel (Ni)*, mg/kg dry mattermax 100BDS EN 16319 + А1
Lead (Pb)*, mg/kg dry mattermax 120BDS EN 16319 + А1
Arsenic (As)*, mg/kg dry mattermax 40BDS EN 16317 + А1
Granulometry: granules 1-5 mmmin 98BDS EN 1235

NPK

General information

NPK 15:15:15 + 10 S is an easily soluble and quickly digestible compound mineral fertilizer that contains the main macroelements: nitrogen, phosphorus and potassium.

The balanced ratio of macroelements in the product contributes to the significant nutrient uptake while ensuring a stable yield and improved production quality.

Nitrogen is the building block of proteins, amino acids and chlorophyll. They are necessary for photosynthesis, energy production, dry matter accumulation and plant fruiting. In the presence of phosphorus, nitrogen is more readily taken up by plants. In the initial phases of their development, plants absorb phosphorus more intensively and later distribute and use it to synthesize organic substances.

In the process of crop development, it is important to provide crops with the amount of phosphorus needed for the growth and development of the root system and for better nutrient uptake.

Potassium contained in the plants stimulates the formation of healthy stems and increases stress resistance by ensuring an optimal water regime for the plants. Better potassium stocking in plants also helps to improve their nitrogen supply and nitrogen transformation into amino acids and proteins. Potassium positively influences the anatomical growth of plant organs and tissues, which gives them greater strength and resistance to lodging, diseases and pests.

Sulfur content is an advantage of NPK 15:15:15 + 10 S compound fertilizer.  Sulfur plays an important role in oxidation-reduction processes, energy balance of the plant organism, functioning of phytohormones, activation of enzymes, chlorophyll synthesis, etc. It is necessary for nitrogen uptake and amino acid and protein production. What makes NPK 15:15:15 + 10 S fertilizer so highly productive is the fact it collects in a single granule all the necessary nutrients the plant needs in the initial stages of its development.

Each granule ensures a balanced uptake of essential nutrients and helps to fully satisfy the plant needs. The application of this fertilizer guarantees maximal effectiveness of the funds input and provides supply of nutrients of full value.

Technical specification

PARAMETERNORMHARMONIZED ANALYTICAL STANDARDS
Total Nitrogen (N), %15,0 ± 1,9BDS EN 15750
Ammoniacal Nitrogen, %15,0 ± 1,9BDS EN 15475
Total Phosphorus pentaoxide (Р2О5), %15,0 ± 1.9BDS EN 15956; BDS EN 15959
Phosphorous pentaoxide (Р2О5), soluble in neutral ammonium citrate, %14.0 ± 1.9BDS EN 15957; BDS EN 15959
Phosphorous pentaoxide (Р2О5), soluble in water, %12,5 ± 1.9BDS EN 15958; BDS EN 15959
Content of Water*, %max 2.0BDS EN 13466-1
Potassium (as К2О), soluble in water, %15,0 ± 1,9BDS EN 15477
Total Sulphur (S) , %10,0-0.8/+1.6BDS EN 15960; BDS EN 15749
Cadmium (Cd)*, mg/kg Р2О5max 60BDS EN 16319 + А1
Hexavalent Chromium (Cr VI)*, mg/kg dry mattermax 2.0BDS EN 16318 + А1
Mercury (Hg)*, mg/kg dry mattermax  1BDS EN 16320 + А1
Nickel (Ni)*, mg/kg dry mattermax  100BDS EN 16319 + А1
Lead (Pb)*, mg/kg dry mattermax  120BDS EN 16319 + А1
Arsenic (As)*, mg/kg dry mattermax 40BDS EN 16317 + А1
Granulometry: granules 1-5 mmmin 98BDS EN 123