Innovative substrates with GreenFibre® – for a sustainable cultivation of strawberries
The most common international method for commercial strawberry production is soilless cultivation in growing media using gutter systems, containers or substrate-filled ridges. The substrates used are mainly based on coir, peat and perlite. Research and development is currently investigating how substrates can optimise strawberry yields and at the same time comply better with sustainability criteria. With regard to environment and climate protection,
the aim is to reduce water and energy consumption as well as CO2 emissions associated with the production, processing and use of substrates. Furthermore, the soft fruit sector would like to become more independent of certain raw materials and constituents. In recent years, shortages in the availability of raw materials from overseas, in particular coir, have highlighted the importance of reliable and local raw material sources.
The substrate innovation with GreenFibre®
With this background, Klasmann-Deilmann has developed innovative TS substrates with a high content of its own wood fibre product GreenFibre® which are particularly suitable for strawberry cultivation in gutters and containers. This new approach allowed to reduce the amount of coir, peat and perlite in those substrates significantly.
Extensive practical tests with the GreenFibre® substrates were carried out at the Delphy and BerryNova-Genson research stations (Netherlands) and at Proefcentrum Hoogstraten (Belgium), among others. The substrate blends proved their excellent suitability when mixed with up to 50 % GreenFibre®. The results confirmed the high efficiency in irrigation management and cultivation as well as a higher fruit yield. The complete test reports are available on request.
In contrast to coir-based substrates, a drainage percentage of 20 % is sufficient for substrates with GreenFibre®, even on warm days. This value should not be exceeded for substrates with GreenFibre®. Especially in regions with high temperatures and limited water availability, this is an additional benefit of these new substrates, as less water is needed during cultivation.
Research Station Delphy (The Netherlands), 2019–2020
The variant with 50 % GreenFibre® showed the highest yield for the total production of both harvest periods. The control variant, a common practise strawberry substrate, had the lowest yields. Also with regard to the distribution of fruit classes in autumn and spring, the highest yield of fruits class 1 was achieved in substrates with 50 % and 20 % GreenFibre®. In this trial, all substrates with GreenFibre® performed better than the control substrate. The drain EC value in the control substrate was significantly higher than in the substrates with GreenFibre®, especially in autumn, and also had the lowest drain rates in %. In spring, both the drain EC values and the drain percentages were closer to each other in all substrates.
Research Station BerryNova-Genson (Netherland), 2019
This test confirmed that a substrate with 50 % GreenFibre® can achieve yields at least as high or even slightly higher than those of coir substrate. Especially at the beginning and end of the cultivation, the weekly yields in the substrate with GreenFibre® were higher.
Our new TS substrates with GreenFibre® for strawberries
As part of the worldwide treasured TS substrates, we now offer a range of substrates especially for strawberry cultivation. Tailormade recipes are available for all stages of cultivation and growing systems. Our new TS substrates with GreenFibre® for strawberries in gutter systems combine improved yield performance with a more sustainable substrate concept.
At a glance: all advantages of our new TS Substrates with GreenFibre®
Independent certification is the norm at Klasmann-Deilmann
GreenFibre® is RHP certified
The wood fibre GreenFibre® is manufactured by Klasmann-Deilmann and certified according to the RHP quality mark. The RHP label guarantees long-term suitability and consistently high quality of GreenFibre® as substrate constituent for professional horticulture (www.rhp.nl).
Wood resources only from responsibly managed forests
Besides reliability, sustainability is of key importance for our growing media. The wood chips used to produce GreenFibre® are obtained solely from responsibly managed forests. Whenever possible, we prefer raw materials from local sources that meet sustainability criteria and opt for PEFC- and/or FSC-certified wood as base for our GreenFibre®.
GreenFibre® for organic production
Substrates with GreenFibre® are also ideal for organic production. GreenFibre® complies with EU Regulation (EC) No. 834/2007 and Annex I to Implementing Regulation (EC) No. 889/2008, inspected by Ecocert®.
Our TS-Substrates with GreenFibre® – Ideal substrate solutions also for other soft fruit species.
Do you also grow blueberries, raspberries or other soft fruit in containers or gutter systems? Then we have the right substrate for you. We offer a full range of tried and tested substrates specifically developed for the propagation and growing on of various soft fruit species. Please do not hesitate to contact us for further information.