Geohumus

MSDS, chemical analysis, ecotoxicological tests and certificates

The contents, harmlessness and/or effect on the environment and the characteristics of Geohumus were analysed in many studies. Here is a selection of the most important analyses:

Material Safety Data Sheet according to 91/155/EEC

Performed by Chemie & Vorschrift, 53123 Bonn-Duisdorf, in the scope of the tests it was determined that any danger for humans and animals could be excluded, as long as the product is used properly and as intended.

Analysis of the components of Geohumus

  • Organic carbon content, pH, C/N ratio, nitrogen were determined at the Technische Universität München, Chair for Soil Ecology in accordance with VDLUFA.
  • Nutrients available to plants, P2O5, K2O , were tested for CAL extract at the Universität Bonn, Chair for Plant Nutrition in accordance with  Bundesgütegemeinschaft Kompost [Federal Compost Association](Method manual for the analysis of organic fertiliser, soil conditioners and substrates, self-publication, 2006).
  • Cobalt and selenium were test at the Justus Liebig University in Giessen in accordance with the Bundesgütegemeinschaft Kompost [Federal Compost Association] (Method manual for the analysis of organic fertiliser, soil conditioners and substrates, self-publication, 2006).
  • All other elements and inorganic components were determined by the Chamber of Agriculture of North Rhine Westphalia, Munster (Dipl.-Chem. Dr. M. Müller) and InfraServ GmbH & Co. Knapsack KG according to recognised testing methods.

Terestrial ecotoxicology

The use of Geohumus according to professional practices has no hazardous consequences for terrestrial organisms and soils. The following studies were conducted:

  • Earthworm production test following ISO 11348-2 under GLP-compliant conditions (Fraunhofer IME, Schmallenberg, Dr. Hund-Rinke)
  • Microbial respiration according to OECD 216 (TU Berlin, Prof. Dr. Dr. B.-M. Wilke)
  • Potential nitrification according to OECD 217 (TU Berlin, Prof. Dr. Dr. B.-M. Wilke)

Aquatic ecotoxicology

The use of Geohumus in accordance with professional practices does not represent a hazard for aquatic organisms and systems. The following examinations were conducted by InfraServ GmbH & Co. Knapsack KG:

  • Determination of the biodegradability: Zahn-Wellens Test according to OECD 302 B
  • Determination of the inhibiting effect of dissolved matter on the light emission of vibrio fischeri according to EN ISO 11348-2:1998 (L34), luminescent bacteria test
  • Examination of acute fish toxicity according to OECD 203
  • Examination of acute daphnia toxicity according to OECD 202 and DIN EN 6341 (L40)

Survey for determining the characteristics and the growth behaviour

Numerous reports were drafted by the Institution for Landscape Ecology and Resource Management of the Justus- Liebig University in Giessen:

  • Reports for the growth behaviour of corn under water stress with and without the addition of Geohumus
  • Reports on the water storage characteristics of Geohumus under laboratory conditions: Moisture suction power characteristics
  • Report on the climate chamber testing with Geohumus
  • Report on the greenhouse testing with Geohumus in combination with Axis
  • Report on the growth of grass under the influence of salt
  • Report on the growth of lucern in the soil of Saudia Arabia
  • Report on the effect of Geohumus on the yield of mango trees in semi-arid areas (Sinai/Egypt)
  • Report on the effect of Geohumus on the yield and the transportability of basil
  • Report on the greenhouse testing with rolled sod and Geohumus