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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FULVAGRA® Liquid 25 is a bioactive growth promoting liquid based on aquatic fulvic acids. Fulvic acids stimulate the root development and metabolism of plants and increase plant resistance to abiotic stress. Fulvic acids act as natural chelators, mobilizing nutrients in the soil, improving their availability and uptake by the plant. Due to the small molecular size, fulvic acids can be taken up by the plants via the leaf surface and through the roots.

FULVAGRA® Liquid 25 can be used for both foliar and soil applications or in hydroponic systems. It can be combined with fertilizer or pesticide. (Pre-mixing test advised).


  • Increases the germination of seeds and supports root development
  • Acts as natural complexing agent and increases fertilizer use efficiency in the soil and promotes nutrient uptake by plants    
  • Stimulates vigorous root development
  • Increases the yield and improves plant quality
  • Increases the cation exchange capacity (CEC) in soil
  • Easy to handle, with good technical compatibility and miscibility with other additives
  • Stimulates enzymatic activity and increases the plant's own defenses against abiotic Stress factors
  • Promotes the collection and transport of micronutrients contained in leaf fertilizers
  • Acts as an antioxidant against free radicals and thus prevents cellular damage


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


30 - 50 L/ha divided into several applications (5 -10 L/ha) during the vegetation period

0.5 L/100 L water every two weeks during the vegetation period

0.3 – 0.5 L/m³

Seed Treatment
0.05 % solution (5 ml/10L water) as seed dressing according to thousand grain weight (T.G.W.)

10 – 20 ml/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.


Total Humic Acids 1/2 

18 %

Humic Acid 1/2

1 %

Fulvic Acid 1/2

17 %

Dry Matter

23 - 25 %

Organic Substance

20 - 21 %

pH - value

8 - 8.5

 Sodium (Na) 

3.0 - 3.5 %


1.10 kg/L

1 according to ISO 12728:5 / Prof. Rob Comans (Soil Chemist, Wageningen University)
  Hydrophobic and Hydrophilic Fulvic Acids

2 according to ISO 19822 / HPTA / AAPFCO / IHSS Analysis method. Hydrophobic Fulvic Acid 11% 


“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

1 L

5/10/20 L


Other options:

If you are looking for a highly concentrated water soluble Humic Acid POWHUMUS® WSG 85

Organic Soil Conditioner POWHUMUS® WSG 85 Find out more

If you are looking for a liquid Humic Acid with Potassium Humate 18% LIQHUMUS® Liquid 18

Organic Soil Conditioner LIQHUMUS® Liquid 18 Find out more

If you are looking for a Granulated Natural Humic Acids PERLHUMUS® Granules.

Organic Soil Conditioner  PERLHUMUS® Granules Find out more

If you are looking for a high quality liquid native Humic Acid Suspension HS-300BIO

Organic Soil Conditioner HS-300BIO Find out more


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 the feed, pharmaceutical and construction industry, in veterinary medicine and 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