Organic substrate

Our organic substrate CARBOMAT proves ideal for soil and soilless cultivation of all plant species. It is composed of properly comminuted, selected and siefted fractions of soft brown coal – lignite. In this way we obtain optimum water and air conditions for individual plant species. Being an abundant source of leonardites – humic substances (humic acids and their salts), active carbon and organic carbon, lignite plays a significant role in maintaining soil fertility and supplying plants with mineral compounds of organic origin. Furthermore, it has an advantageous impact on improvement of physical, physical-chemical and biological properties of soils.


Why lignite?

Lignite has a positive influence on growth, development, yield and health condition of cultivated plants. What is more, it has an indirect and direct influence on the soil environment and biological life that goes on therein. Therefore, in the times of significant deterioration of soil quality and low soil fertility, taking advantage of the potential of lignite as a “fertilizing raw material” constitutes a key issue in the context of plant cultivation and soil condition. Apart from that, lignite may be applied successfully in reclamation of soils contaminated with heavy metals, e.g. in urban areas where improving soil properties might open new perspectives for urban greenery.

Where will you use CARBOMAT?

Currently lignite experiences a true renaissance period in the context of soil fertilization and making of original substrates. It is versatile in its applications due to its condensed organic matter, loose structure of desired fraction, sterility, porosity and durability of microbiological structure. It may be used successfully as independent cultivation substrate both in soilless and in soil cultivation as well as a substrate component with addition of e.g. perlite, peat, coconut and even sand. Lignite is gaining better and better recognition and is a well appreciated biodegradable organic substrate of properties same as organic fertilizer. Comminuted into granulate it will perfectly fertilize the root environment while due to its loose and porous structure it will enable the roots to fully penetrate their life space and ensure oxygen supply from ambient air.

Available capacity

Characteristics and properties of lignite as:

Recommended applications

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Soil amendment
Ornamental plants
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  • After proper preparation (appropriate pH and optimized selection of nutrients), the substrate is useful for cultivation of practically all plant species designed for conventional and container cultivation
  • Lignite successively influences the quality and volume of crops (increase as much as by 20 %), what is more, it optimizes plant nourishment, which consequently leads to a reduction in outlays on mineral fertilizers even as much as 30 %
  • Standard substrate of light acidic reaction within the range of 4 – 4.5
  • When properly comminuted (granulated), it displays perfect physical properties which ensure optimum water and air conditions and, consequently, proper generative development
  • Lignite is free from pathogens and does not contain any substances harmful to plants
  • The substrate is extremely durable due to the polymerized structure of brown coal and concentrated organic substance; total decomposition of substrate takes approximately 20 years
  • It is the only organic substrate in which no biological sorption of nitrogen occurs in the initial phase of cultivation
  • Lignite has the highest content of organic substance of all available carriers of organic matter such as dung or compost
  • Low salinity and stabile chemical composition make it an easily controllable substrate
  • Being 100 % organic it maintains key properties of other inert substrates (such as pH and EC change during cultivation, cultivation methods etc.), furthermore, this substrate is affordable and easy to handle
  • Upon completion of container cultivation the substrate may be reused either in subsequent cultivations or as natural fertilizer – for instance, for decorative plants or to improve soil properties
  • There are no issues concerning management once cultivation is completed in case of greenhouse cultivation
  • It is the only substrate activated with humic acids obtained from leonardites
  • Humic acids and organic carbon contained in the substrate facilitate proper nutrition of plants as well as growth of favourable soil microorganisms
  • Porous structure of lignite enables reduced water consumption (invaluable help when water is scarce)
  • In greenhouse or tunnel cultivation using cultivation gutters the substrate may be reused many times without a risk of pathogens or pests
  • Lignite enhances the taste, durability and texture of farm produce
Soil properties enhancer
  • Lignite is free from pathogens and does not contain substances harmful to plants
  • The organic substance contained in lignite is rich in macro- and microelements such as: calcium, magnesium, iron, sulphur, zinc, copper, manganese, molybdenum, boron etc.
  • Application of lignite allows us to limit the negative effects of liming on the growth and yield of plants cultivated on soils containing heavy metals
  • Humis acids facilitate proper nutrition of plants as well as growth of favourable soil microorganisms
  • Porous structure of lignite enables reduced water consumption (invaluable help when water is scarce), furthermore, it effectively absorbs carbon dioxide and ammonia
  • Comminuted lignite has best effect on sandy soils, acidic soils and toxically contaminated soils
  • The organic matter in lignite increases the factor of nutrient use by plants i.e. macro- and microelements (particularly potassium, copper, manganese, iron, sodium). In this way it also limits their leaching into deeper layers of soil and ground water
  • Due to its buffer properties, lignite improves and stabilizes soil reaction, maintains its high pH and since it contains organic substance which slowly gets mineralized, it may limit absorption of heavy metals by plants and their subsequent decomposition by microorganisms
  • Application of lignite is mostly recommended on the following soils: soils of low content of humus, soils prone to degradation, degraded soils as well as soils requiring reclamation (in order to restore their biological function)
  • Due to slow mineralization of organic substance contained in lignite, a field which was only once fertilized with lignite fertilizer does not need to be fertilized with organic fertilizer even for as long as a dozen or so years to come.