NPK (Ca-Mg-S) SulfActive with polysulphate

NPK (Ca-Mg-S) SulfActive with polysulphate

Fertiberia CLASSIC / Plus Edition / NPK (Ca-Mg-S)

NPK (Ca-Mg-S) SulfActive

NPK (Ca-Mg-S)


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The formula NPK (Ca-Mg-S) SulfActive adapts to soils that are balanced in phosphorus and potassium, and is specially designed for crops that extract a great deal from the soil, whether those typical of irrigated land such as corn, potatoes, beets, cotton and even fruit trees, or high-productivity winter cereals such as high-yield strong wheats.

SulfActive is the new line of complex fertilizers enriched with polysulphate, guaranteeing more complete and efficient fertilization in the most demanding crops.

Polysulphate: this is a natural compound with very high solubility and is totally assimilable. Its composition, based on magnesium sulphate, potassium sulphate and calcium sulphate, provides a unique composition of essential nutrients and a lower chlorine content.

Thanks to their polysulphate content, SulfActive fertilizers simultaneously make available to the plant all the essential elements needed for its correct development, achieving a much more balanced feed than when elements with different degrees of solubilisation are supplied.

The result is a line of very versatile and balanced improved products that meet the needs of up to six fundamental nutrients we need for our crops.

Nitrogen: A determining factor in the growth and development of the plant. It is also the essential component in proteins

Phosphorus: Its high solubility in water facilitates its transport to the root of the plant, being the most efficient on the market. It favours root development and adds vigour to the crop. It is a component of nucleic acids and lipids. It is also very important in the transfer of energy.

Potassium: It increases the crops' resistance to cold and drought. It is essential for the metabolism, photosynthesis and the activation of enzymes.

Calcium: It favours the development of roots, displaces Na in saline soils and is a factor of quality in harvests.

Magnesium: Its inclusion responds to the increasingly widespread demands of soils with magnesium deficiencies. It is essential in chalky soils and those with a high pH, and improves pollination and setting, thus favouring higher production.

Sulphur: A component of amino acids, vitamins, proteins. Increasing deficiencies due to low levels in soils. It also regulates the availability of nitrogen and mobilises phosphorus and potassium, and soil micronutrients.


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Technical specifications

Polysulphate Total nitrogen N (%) Total phosphorus P2O5 (%) Water soluble potassium K2O (%) Total magnesium MgO (%) Water soluble calcium CaO (%) Total sulfur SO3(%)
SulfActive 0-14-14 (7-2-21) - 14.0 14.0* 2.0 7.0* 21.0
SulfActive 7-14-14 (6-2-25) 7.0 14.0 14.0* 6.0 2.0* 25.0
SulfActive 8-12-20 (4-2-25) 8.0 12.0 20.0* 2.0 4.0* 25.0
SulfActive 8-16-8 (6-2-25) 8.0 16.0 8.0* 2.0 6.0* 25.0
SulfActive 8-20-5 (6-2-25) 8.0 20.0 5.0* 2.0 6.0* 25.0
SulfActive 12-12-12 (5-2-25) 12.0 12.0 12.0* 2.0 5.0* 25.0
SulfActive 18-6-6 (6-2-24) 18.0 6.0 6.0* 2.0 6.0* 24.0


* Water soluble

Form of application

It is advisable to apply NPK complex fertilizers homogeneously on the surface of the soil and, if possible, dig them in so that they get near the roots. This facilitates the absorption of phosphorus and potassium, which are elements that are not very mobile.

In the case of tree crops, it can also be located between the rows.

It is recommended that all NPK complex fertilizers are applied:

  • Shortly before sowing in the case of herbaceous crops.
  • At least one month before sprouting in the case of tree crops, or in other words, far enough in advance before the plant needs the nutrients that we supply.



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