German technology
Humic Substances Based Products
Humintech GmbH
Am Pösenberg 9-13
D-41517 Grevenbroich

Telefon: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22
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PERLHUMUS® Granules is a natural, high quality granulated humic substance based soil conditioner from German Leonardite

PERLHUMUS® Granules consists of immediately available nutrient humus and high quantity of permanent humus, which is stable against microbial decomposition in the soil, contributing to soil fertility increase for long term. 

The unique advantages of PERLHUMUS® Granules as a soil conditioner are its positive influence on plant growth and the improved resistance of plants against stress factors (drought, salinity, and pesticides). It increases the soil cation exchange capacity and soil buffering capacity as well as the soil water holding capacity. The positive effect of Perlhumus on soil life, soil structure and the rhizosphere can be seen after the first application. 

PERLHUMUS® Granules can be used in a wide variety of applications and should be applied to the ground using non–hygroscopic equipment.


  • Provides stable humus to the soil and stimulates CO2 sequestration
  • Improves the soil structure and aeration of the soil, especially in sandy and clay soils
  • Increases availability of soil nutrients and improves soil water holding capacity 
  • Improves the buffering capacity of soils and increases fertilizer use efficiency, plant productivity
  • Helps to neutralize toxins and sequesters heavy metals in the soil
  • Promotes root respiration and development, especially vertically


  • Agriculture
  • Vegetable Production
  • Vineyards and Horticulture
  • Fruit Production
  • Turf and Landscaping


400 - 600 kg/ha during seed bed and general soil preparation 

0.3 – 0.5 kg/m3 in organic or mineral substrates

5 kg/100 m2 during planting, seed bed preparation and lawn care

0.5 – 2 kg/planting hole or 5 kg/100 m2 together with the first fertilizer application evenly over the tree shade area

* Standard recommendations that can vary according to soil properties, cultivated crop and local application conditions.

5 KG / 100 m2

Mix approximately 5 kg Perl Humus per 100 m2 of application area on soil.

Agricultural and Gardenapplications

PerlHumus can be applied to larger areas with agricultural machinery & equipment. A spreader can be used for lawn areas.

INHERENT COMPOSITION (Typical values based on Dry Matter)

Humic Substances 1

min. 60 %

Total Humic Acids 1/2

38 - 39 %

Free Humic Acid 1

34 %

Hydrophobic Fulvic Acid 2

4 - 5 %

Dry Matter

68 - 72 %

Organic Substance

> 80 %


5 - 6

Bulk Density

0.6 - 0.7 g/m3

Particle size

1 - 6 mm

1 according to ISO 5073
2 according to 19822 / HPTA / AAPFCO / IHSS Analysis method

“All Humintech humic substances based products are analysed according to the HPTA test method (ISO 19822:2018) to determine the content of humic and hydrophobic fulvic acids. Most suppliers are using the more simple “colorimetric” analysis method to determine the humic and fulvic acid contents, but experience shows that, due to its inaccuracy, this method indicates higher contents and is not suited to identify non humic substances such as lignosulphonates. In order to maintain the highest quality standard, Humintech has therefore decided to use the currently best analytical standard for the determination of humic and fulvic acids within the scope of quality control.”


Store in a dry area, protected from frost, heat and direct sunlight. Can be stored up to 5 years in its original packaging. KEEP OUT OF THE REACH OF CHILDREN, PETS AND FOOD.



Bag 20 kg

Big Bag

Filling line PERLHUMUS 20 kg

Source: report on application Perlhumus by Michael Mai (Solid Green)

Source: report on application Perlhumus by Andreas Krauss (

Source: report II on application Perlhumus by Michael Mai (Solid Green)


Humintech is a biotech company based in Grevenbroich, Germany. We are primarily focused on the research, development and industrial production of humic matter and humic acids for the agricultural sector. Our products find further use in pharmaceutical, construction industry, for ecological purposes such as water purification and soil decontamination.


Humintech GmbH

Am Pösenberg 9-13
41517 Grevenbroich / Deutschland 

Phone: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22


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