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
E-Mail senden

HUMAGRA® NPK 6-0-10 + HA WSG is a water soluble, organic mineral fertilizer based on potassium humate (activated humic acids) from high quality German Leonardite and nitrogen. It provides the crop with plant available nitrogen and potassium for high crop yields. Due to the humic substances with their high cation exchange capacity, the nutrients are bound so that they are available for plants. Humic substances, especially in sandy soils, form the very basis for sustainable and efficient nutrient absorption by the plant.

HUMAGRA® NPK 6-0-10 + HA WSG can be applied using fertigation, hydroponic and sprinkler systems as well as conventional foliar sprays. Also suitable for hydroponic cultivation systems.


  • Provides available nitrogen and potassium to the plant and prevents nitrate leaching
  • Increases fertilizer efficiency 
  • Strengthens early plant development and facilitates full growth potential 
  • Increases tolerance of plants against abiotic stress (drought, salt stress, cold and heat)
  • Increases the buffering capacity and cation exchange capacity (CEC) of soils 
  • Promotes a deep and dense root development


  • Agriculture
  • Vegetable Production
  • Fruit Production
  • Substrate Cultivation
  • Hydroponics
  • Turf and Landscaping
  • Seed Treatment


8 - 10 kg/ha divided into several applications (1 - 2 kg/ha) during the vegetation period

15 - 25 g/100 L water every two weeks during the vegetation period

0.1 - 0.5 kg/m³

0.1 % or 100 g/100 kg seed dressing according to thousand grain weight (T.G.W.)

10 – 20 g/1000 L nutrient solution during the cultivation cycle

* These are standard-recommendations that can vary according to soil properties, cultivated crop and local system conditions.

INHERENT COMPOSITION (Typical values based on Dry Matter)

Potassium - Humates

70 %

Total Humic Acids 1/2

60 %

Humic Acid 1

55 %

Fulvic Acid 1

5 %

Potassium (K2O)

10 %

Dry Matter

83 - 85 %

Organic Substance

70 %

pH - value

9.5 - 10.5

Total Nitrogen

6 %

Thereof available Nitrogen

5 %

Bulk Density

0.55 - 0.65 kg/L

according to ISO 19822 / HPTA / AAPFCO / IHSS Analysis method 
2 according to CDFA  60 % / Colorimetric method 70 %
“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 place, protected from frost, heat and direct sunlight. Store out of the reach of children!

Delivery specs

Carton Box
1/10 kg

1/5/10/15 kg

Big Bag


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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