Polifoska® 12

Polifoska®  12

Complex fertilizer NPK(MgS) 12-12-12-(2-27)

Trade name: POLIFOSKA® 12
Name: Fertilizer NPK(MgS) 12-12-12-(2-27) 
PKWiU: 20 15 710
CN: 31 052 010 90

Unit: Grupa Azoty Zakłady Chemiczne "Police" S.A.

Product description:

Fertilizer of uniform light-grey to dark-grey granules, grain class 2-5 mm, at least 92%. Granules coated, without permanent caking characteristics. Bulk density: 0.85-0.95 kg/dm3.

POLIFOSKA® 12 includes 12% of nitrogen (N) of nitrates, 12% of phosphorus (P2O5) soluble in neutral ammonium citrate and water, that is, available in the form of mono- and bi-ammonium phosphorus, including 10% soluble in water. The fertilizer includes 12% of potassium (K2O) soluble in water, in the form of potassium chloride, that is, potash salt, 2% of total magnesium (MgO) in carbonate form and 27% of sulphur trioxide (SO3) soluble in water, in sulphate form.

Intended use and application:

It is recommended that POLIFOSKA® 12 be used in spring, above all for fertilization of crucifer plants (rape, oil-yielding rape, turnip, mustard, cabbage, cauliflower, cabbage turnip), leguminous plants, potato, onion, leek, garlic and horseradish. Good results are obtained in spring fertilization of grassland, especially on organic soil.

The highest effectiveness is obtained when this fertilizer is used prior to sowing, mixed with soil to a depth of 10-20 cm. POLIFOSKA 12® may also be used early in spring, for top dressing on winter plants, above all under rape. Permanent crops may be fertilized in spring.

POLIFOSKA® 12 may be mixed immediately before spreading with urea, ammonium nitrate and nitro-chalk / Salmag, and with potash salt at any time.


Ammonium nitrogen is absorbed slowly by plants, contributing to their harmonious growth and development, and it supports absorption of phosphorus and limits excess absorption of potassium. Phosphorus in the form of ammonium phosphorus is the best available form of the element, well absorbed also where there is a deficiency of water in soil. The high sulphate sulphur content, perfectly soluble in water, increases the immunity of plants and provides them with sulphur early in spring growth. The addition of easily soluble magnesium in the initial phases of shallow-rooted plants improves early spring intake of nutrients. This chemical composition in a fertilizer results in good rooting and proper development of plants from the postemergence period and increases their strength and drought resistance. It also contributes to full blooming and uniform maturation, along with an improvement in quality and a faithful, high yield.

Packaging and transport: 

POLIFOSKA® 12 is packaged in:
  • 50 kg ± 1% polyethylene bags with overprint;
  • Flexible containers at 500 kg ± 1% or more, the so-called big-bags.

The fertilizer must be transported while protected against water, rainfall, direct sunlight and damage to the packaging.

POLIFOSKA® 12 is not classified, i.e. it is not considered a hazardous material according to the UN Orange Book and international transport codes, for example RID (railway transport), ADR (road transport) and IMDG (sea transport).

With regard to transportation using the road vehicles of the recipient or of a carrier acting on the direct instructions of the recipient, it is the recipient or the carrier who is responsible for any deterioration in the quality of the fertilizer.


Polyethylene bags with overprint of a net content of 50 kg should be stored in 10 layers at the most. Flexible containers of less than 500 kg in weight may be stored in piles of up to three layers, or in piles of two layers if weight exceeds 500 kg. In the case of pallet storage, loading units of up to 0.9 m in height are stored in piles of four layers, and loading units of 0.9 m to 1.8 m in height in piles of not more than 3.6 m.

The fertilizer should be stored in clean and dry warehouse buildings and protected against atmospheric conditions (solar radiation, rainwater). 

In the course of transportation, handling and storage, the regulations in force should be observed.


In the event of irritation of skin and eyes, wash with plenty of water. Dust masks and safety goggles are recommended. If swallowed accidentally, seek medical advice. Nontoxic, odourless, non-flammable fertilizer.

Support and consulting:

Aiming to provide the highest standards of customer service, the Grupa Azoty offers professional consulting, information support for farmers and food producers.

Support includes:

  • Client support with technical knowledge, i.e. consulting in fertilizer use
  • Resolution of problems reported by the client (dosage, chemical composition of fertilizers, mechanisms of effect on cultivated plants and elements of the natural environment)
  • Provision of information on distribution centres in the country
  • Information on the current fertilizer product range of the Grupa Azoty 


Sales information: Katarzyna Burzych

phone +48 91 317 11 77, mobile phone +48 887 744 440

fax +48 91 317 22 55

Overall information: Paulina Czerniak - product manager

phone +48 91 317 17 07 mobile phone +48 887 744 446

fax +48 91 317 28 19



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