For Users




Alginit’s optimally balanced composition makes it suitable for use in the following areas:

  • Agricultural and forestry (especially in arid and semiarid zones)
  • Enviroment and biological agriculture 
  • Combat desertification
  • Gardening and landscaping
  • Establishment of soil substrate
  • Garden centers, tree and shrub nursiers


Alginit is recommended for use in soil amelioration wherewer there is a need to bind and retain water or add naturally occuring nutrients.

This applies to all cultivated land and to some extent, also to loose, sandy soil.

Alginit has a very positive effect on both light and heavy soils. It loosens the soil structure and helps to improve the quality and quantity of harvests.

Alginit contains no cemicals and has no harmful, damaging phytotoxic effect, presents no hazard to the environment.

In contrast to the widely known detrimental effects of fertilisers and pesticides, Alginit fulfills the strictest enviromental standards and meets the rules and regulations covering organic soil cultivation, whitch prescibe the exclusive use of natural materials.

Alginit can be freely used on organic farms and in the natural foods industry.

Alginit is a natural mineral, a complex mineral for soil amelioration that is unique in the world.

Nothing else is available in either nature or manufactured artificially whitch simultaneously possesses all the attributes of Alginit.


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Given that Alginit is a naturally occuring material, there will be variations in the concentracion of different elements. These different concentracions are caused by the genesis of the mineral. On this basis, the definition of specific qualities of the invidual ingrediens each is not possible.



  • Natural oil shale with mineralogical algae content
  • Originated 4-5 million years ago
  • Place of origin: Gérce, Hungary



  • Participle size desribution
  • clay 54%

            - smectit 50%

            - ilit 40%

            - chlorit/vermiculit 10%

  • Silt 40%
  • Sand 6%


  • Organic matter up to 19%
  • Lime content (CaCO3) up to 22%


Macro – und micro nutriens

  •  Macro nutriens


  • Nitrogen (N) up to 0,4%


  • phosphorus (P) up to 11,3 mg 100 g -1


  • Sulfur (S) up to 734 mg kg -1


  • Potassium (K) up to 78 mg 100 g -1


  • Sodium (Na) up to 90 mg kg -1


  • Magnesium (Mg) up to 193mg 100 g-1


  •  Micro nutriens


  •  Copper (Cu) up to 7,7 mg kg -1


  • Manganese (Mn) up to 63,1 mg kg-1


  • Zinc (Zn) up to 8,5 mg kg -1


  • Boron (B) up to 2,3 mg kg-1



Gantry elementes

  • Aluminium (Al)


  • Silicon (Si)



Toxic elements and heavy metals

Toxic elements only exist in extremly low concentration. The heavy metal levels are so low that Alginit can be described as harmless/non dangerous.


Chemical reaction

The chemical reaction of the mineral is weakly alkaline. The pH value, measured in a 0.01 M Ca Cl2 solution is 7.6.


Salt ontent

Very low: 1,5 g L -1


Fields application

  • Improvement and fertilisation of acid and dry soils


  • Biological agricultures, nurseries, garden and landscaping


  • In arid and semiarid zones wordwide



  • Toxicity: not  toxic


  • Hygienic risk: unperilous


  • Working hygienic latency: not any


  • Fire and explosion danger: class E


  • Stability, dry aerial stored: unterminated




Alginit is a natural mineral out of the oil shale family; it originated from fossil algae biomass. The essential ingredients of Alginit are the high content of organic matter, clay and lime. In addition, Alginit implies essential macro –and micro elements for plant growth.


Physical,  chemical and mineralogical investigations 

Chemical, physical and mineralogical properties of Alginit have been analyzed with the Institute of Crop Science and Resource Conservation (INRES) of the University Bonn/Germany and Agricultural Investigation and Research Institute LUFA (Landwirtschaftlichen Untersuchungs-und Forschungsanstalt Nord-West, LUFA Nord-West, LUFA Nord West), Hameln/Germany, Hungarian Academy of Siences (Research Institute for Soil Science and Agricultural Chemistry, Hungarian Academy of Sciences, Budapest) to determin the utilisation properties of the mineral.


Participle Size Distribution

 A combined sieving and dispering method without precedent destruction of the binding agents carbonate and humus resulted in a participle size distribution in Alginit of 54% clay and 40% silt and just under 6% sand, thus the soil texture is considered „slightly silty clay”. 


After the destruction of carbonate and humus the clay fraction is halved to 27% whereas the silt content increased to 67% and the sand fraction to less more than 6% which results in strong silty clay. This indicates that the severe reduction of the clay mainly caused by the loss of the high content of finest lime participles in Alginit. The natural composition of Alginit enhances the formation of meso porest hat provide in conjunction with small macro pores the largest storage capacity for plant available water.


Pore Size distribution and water retention capacity 

The pore size distribution and the organic matter content are a scale for the water retention capacity. The pore size distribution at a total pore volume of 60% is as follows: 6% wide macro pores, 14% small macro pores and 40% meso-and micro pores.This accounts for a field capacity (FC) up to 63% and an available water capacity (aWC) up to 41%.


Conclusively, 1 m3 Alginit (1 t Alginit) is able to store up to 630 l water. The aWC accounts for up to 410 l water which are long-term available to the plant. Setting the aWC in relation to the FC, more than half of the stored water (approximately 65%) is plant available. Thus, the application of Alginit on sandy soils will dramatically improve the hydrological conditions. Precipitation or irrigation water is preserved and available for plants.


Clay Mineral Identification


X-ray diffraction identified a high smectite contingent of 50% and an illite contingent of 40%. Chlorite and vermiculite occupy only 10%. The high percentage of expansive smectite makes Alginit capable to absorb and to store a significant amount of water. In addition, the higher clay content will stabilize the soil texture and reduce the erosion potential.


Organic matter, Carbonate and Plant Nutriens


Alginit’s high organic matter content amounts up to 19% which additionally improves the water storage capability. Furthermore, the high organic matter content not only has favourable effects on hydrology and soil structure but it also increases the storage capacity for nutriens. The very wide C/N ratio of Alginit (up to 43) indicates that the organic matter is relatively stable, which results in a long half-life period in soil and supports a long time fertilization effect.


Carbonat content


The carbonate content of up to 22% in the Alginit indicates a carbonate (CaCO3) rich material, its pH values reaches 7,6 (weakly alkaline).


alginit rétegek




Guidance for the use of Alginit to soil improvement an soil conditioning in dependence on soil degradation


Plant group


Plant family Plant for exemple acid soil acid forest floor neutrally ph

wheat (Triticum aestivum)

barley (Hordeum vulgare)

oat (Avena sativa)

corn (Zea mays)

 4-10 kg m2 3.5 - 4.0 kg m2 2.5 - 3 kg m2

potato (Solanum tuberosum)

tomato (Lycopersicum esculentum)

green paper (Capsicum annuum)

 4-10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2

luzerne (Medicago sativa) 

red clover (Trifolium pratense)

pea (Pisum sativum)

beau (Vicia faba)

lens (Lens culinaris)

4-10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2

white cabbage (Brassica alba)

red cabbage (Brassica rubra)

cabbig turnip (Brassica deracea)

savoy (Brassica var. Sabauda)

4-10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2
Asteraceae sunflower (Helianthus annuus) 4  -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2
Chenopodiaceae sugar beet (Beta vulgaris) 4 -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2
Apiaceae carrot (Daucus carotta) 4 -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2
Umbelliferae celeriac (Apium graveolens) 4 -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2
Liliaceae onion (Alium cepa) 4 -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2

melon ( Cucumis melo) 

cucumber (Cucumis sativus)

pumpkin (Cucubita pepo)

4 -10 kg m2 3,5 - 4.0 kg m2 2.5 -3 kg m2

sour cherry (Cerasus vulgaris)

black cherry (Cerasus avium)

plum (Prunus domestica)

9 - 10 kg tree -1 8 - 10 kg tree -1


7 - 10 kg tree -1

apple tree (Malus domestica)

pear (Pírus communis)

quince (Cydonia ablonga)

9 - 10 kg tree -1 8 - 10 kg tree -1


7 - 10 kg tree -1


apricot (Prunus armeniaca)

peach (Prunus persica)

11 - 13 kg tree -1 10 - 12 kg tree -1 9 - 10 kg tree -1
4 Vitacea vine (Vitis vinifera) 4 - 5 kg plant -1 3,5 - 4,5 kg plant -1 3 - 4 kg plant -1

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