The development and improvement of almond crops also requires the improvement and technification of their fertilisation.

The increase in production requires complete nutrition in terms of NPK and #microelements.

In addition to replenishing the elements extracted by the crop, it is essential to provide the tree with the necessary nutrients for it to accumulate reserves.

INPROG develops specific fertilisers for almond trees, which provide them with a balanced nutrition to produce high-quality yields.


Seed yield

In such an early flowering crop, the tree must have all the necessary nutrients available to ensure harvest at the time of emergence from winter dormancy.

This is achieved by providing the tree with the necessary reserves of macroelements (such as phosphorus, calcium) and #microelements, from post-harvest to winter dormancy.

The extended-release organic nitrogen during the crop cycle, together with the supply of calcium and sulphur bound to organic matter, optimise tree performance, while improving seed yield and better production.

Fertilisation cases

In the new almond tree planting models, the following three parameters are sought:

  • Quick production start: In almond tree cultivation, fast development and formation of the tree is important. Elements such as sulphur, phosphorus, calcium and #microelements achieve quick growth and a broad structure. 
  • Reduction of alternate bearing in production: The supply of #microelements and essential minerals (#FRpower), as well as extended-release organic nitrogen, manage to reduce the phenomenon of alternate bearing in almond trees. 
  • Extending the lifespan of the plantation: Lack of vigour control leads to an excess of unproductive organs (wood), thus making management difficult and shortening the commercial life of the crop. Organic nitrogen, #microelements and essential minerals are part of the solution.

Essential nutrients

In almond tree cultivation, there are four elements that are essential for high yields:


Low sulphur levels in the soil limit chlorophyll synthesis, hence reducing the tree’s productive yield.


A lack of zinc reduces the crop’s productive potential, thus leading to poor flowering and deficient fruit set.


An essential mineral to ensure a high level of fruit set. It must be present before emergence from winter dormancy.


A crucial element for obtaining seed yields. This is a mineral that is not valued enough in specific literature.

The FORTEC-FR and NUBIECOL ranges naturally contain (#FRpower) a large amount of these 4 elements, thus providing an easy, direct and efficient solution for fertilising with these nutrients.

Prevention of nutritional deficiencies

In most cases, nutritional deficiencies become visible when the damage is severe. Prior to this, the crop has already undergone stress, which has an impact on the yield. It is very important that the most scarce or least available nutrients are always available from the onset of the vegetative cycle.

In the case of almond trees, these minerals are as follows:

  • Boron
  • Iron
  • Zinc
  • Magnesium
  • Sulphur
  • Strontium
  • Molybdenum

The annual supply of FORTEC-FR and NUBIECOL fertilisers guarantees the correct nutrition of the crop, while correcting both visible and non-visible nutritional deficiencies. The annual supply of all essential minerals bound to stable organic matter of noble origin (#multifem) is crucial.

Cumulative effect

The supply, year after year, of the FORTEC-FR and NUBIECOL products improves production both in terms of calibres and kg/ha. This is the conclusion obtained in a trial at IRTA-Mas Badia on apple trees. These results can be applied to all woody crops.

This increase is due to the accumulation, in the soil, of #microelements and essential elements available to the plant. This allows the plant to regulate itself and produce more and better.

Fertiliser benefits

For cultivation

  • Mitigation of
    crop rotation.
  • Increased fruit set.
  • Longer duration of
    productive organs
  • Extending the
    crop lifespan.

For the farmer

  • Easy and
    efficient incorporation of a large amount
    of #microelements.
  • We provide a large amount
    of essential
    #FRpower minerals.
  • We rebalance
    soil microbiology
  • We facilitate the management of
    N-P-K fertilisation.

For harvesting

  • We improve seed
  • More homogeneous

Related products

F-FR Complet

Organomineral fertiliser for crops with high potassium and sulphur requirements, together with calcium, microelements and organic matter.

F-FR Standard

Organomineral fertiliser for crops with high potassium requirements, together with calcium, microelements and organic matter.

F-FR Oleum

Organomineral fertiliser for growing olive trees and other woody crops. It is a complete base fertiliser.

F-FR Vigor

It is a base fertiliser with organic and mineral nitrogen that meets the needs of the whole year.


Organomineral fertiliser intended for the implantation of all types of crops, especially fruit and woody crops.

Saco de abono organo-mineral y ecológico Gamma Verdor de Inprog


Premium organic fertiliser made from a selection of manures to obtain a superior product.

Saco de abono organo-mineral y ecológico Gamma Verdor de Inprog

Verfor phosca

Organic fertiliser from the ripening of our #starter with bicalcium phosphate.

Saco de abono organo-mineral y ecológico Gamma Verdor de Inprog

Verfor basic+s

Organic sulphur fertiliser from the ripening of our #starter with sulphur.

Saco Gamma Nubiecol de Inprog

Nubiecol C

A family of organic fertilisers formulated and designed to achieve high-yield organic crops.

Saco Gamma Nubiecol de Inprog

Nubiecol orgánico

Group of organic fertilisers formulated and designed for crops with high potassium requirements.

Saco Gamma Nubiecol de Inprog

Organic composted manure

Ecological organic fertiliser manufactured as the base of our developed ecological fertilisers. #ECOstarter

Do you need more information?

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Ask our technical support.

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