Applied as a supplement of road shoulders
Topsoil substrate is a substrate composed of a component of organic matter, such as peat or compost and sand.
The chemical and physical properties of topsoil substrate are subject to limited standards. In terms of phytosanitary properties, however, most stringent standards apply. Topsoil substrate is often applied as a supplement of road shoulders. Due to the standard, topsoil can easily be used, while meeting the most strict phytosanitary requirements.
Only companies that have joined RHP can supply topsoil substrate with the RAG quality mark.
