According to Bart Verheijen, it is important to develop new raw materials that are both sustainable and fit for use in cultivation. One example is sphagnum moss, applied in BVB Accretio.
Sphagnum moss, (BVB Accretio), certainly adds outstanding growing features to substrate mixes. It is easily recyclable and regrows quickly after harvesting. The first tests with BVB Accretio for the propagation of strawberries were carried out in 2018. In these tests, BVB Accretio was added to the mixtures used for propagation. Four different mixtures were compared. One of the mixtures contained 50% BVB Accretio and 50% coir. All mixtures showed good rooting and production figures. The speed at which rooting took place was best in the mixture with BVB Accretio. Above all, the sphagnum moss adds airiness to a mixture, which could explain the rooting speed.
Read more about these tests in this article we’ve published earlier, or this article on the Kekkilä-BVB website.
Sphagnum moss as a fresh material
Sphagnum moss has been used for different purposes for over hundreds of years. It grows on the top of bogs in peatlands and has not started to decompose like peat. In addition to the excellent technical properties, the main reason to use sphagnum moss as a raw material for substrates is that it is a living material. Due to the fact that sphagnum moss is a living material, it has not started to decompose, and it regrows relatively quickly. Even old peat bogs can be seeded with sphagnum moss material to produce fresh material for substrate mixes in the future.
Fast rooting speed due to porosity and even water distribution
Recent research shows that adding sphagnum moss to substrates is beneficial and sustainable in more than one way. Mixing sphagnum moss, as raw material named BVB Accretio, means more porosity and more easily available water for the plants. Porosity ensures better drainage and there is always enough air available for the growth of roots. That means faster rooting and a shorter growing time. The addition of sphagnum moss to a mixture ensures quick and even water and nutrient distribution. Crops that grow in mixtures with this raw material in them also need less water. They need less water because sphagnum moss has a large water-holding capacity meaning it will store more water in the substrate.
“Sphagnum moss has low pH and EC levels. This makes it adjustable with other raw materials, which makes it the ideal material for sustainable mixtures for Soft Fruits”, Bart says.
