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

FULVAGRA® WSG 90 is a condensed, water-soluble, bioactive growth promoting product based on natural aquatic fulvic acids. Fulvic acids stimulate root development and plant metabolism and increase the resistance of plants against abiotic stress factors. Fulvic acids act as natural chelators, mobilize nutrients in soils and increase their absorption by the plant. Due to the small molecular size, fulvics can be taken up by the plants via the leaf surface and roots.

FULVAGRA® WSG 90 can be used for both foliar and soil applications or in hydroponic systems. It can be combined with fertilizers or pesticides. (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
  • increases the microbial activity in the 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


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


10 - 12 kg/ha divided into several applications (1 - 2 kg/ha) during the vegetation period

0.2 kg/100L water every two weeks during the vegetation period

0.1 – 0.2 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.


Total Humic Acids 1/2 

70 - 75 %

Humic Acid 1

8 - 9 %

Fulvic Acid 1

63 - 64 %

Dry Matter

90 - 95 %

Organic Substance

75 - 80 %

pH - value


 Sodium (Na) 

13 %

Bulk Density

0.6 kg/L

1 according to ISO 19822 / HPTA / AAPFCO / IHSS Analysis method 
2 according to CDFA  75 % / Colorimetric method 80 %
“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
10 kg

5/25 kg

Big Bag

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


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