COMPOST
Jack Lemmen of GTL Europe and participants between the GTL tilted shel- ves at Nesco.
Jeffrey Heeren of Heereco shows visitors around his modern farm.
Mammoth grass is a potential valuable raw
material source for making compost.
a compost prediction model (CPM). In this model, a current compost recipe can be compared with a potential new one (for example if you get new straw, or a completely new raw material). Different graphs can then provide more informa- tion on the differences in compost development between the current and potential new recipe. Johan Baars is a researcher at Wageningen Uni- versity & Research (WUR) and at CNC. The many studies that have been done in recent years focus on improving compost knowledge, and how mycelium can use the compost as a food source. In other words, how the decomposition process proceeds during mycelium growth and harvesting of the first and second flight. Baars spoke about the degradation of hemicellulose and cellulose and its influence on yields. His research showed that there is a strong link bet- ween the degradation of hemicellulose and yield. But according to him, many questions remain unanswered about these processes. Michel Oldenburg, from Dutch Plant Force, introduced the group to mammoth grass: a potential valuable raw material source for making compost, with exceptional water absorption capacity and structure. Even faster than elephant grass, it can grow to 6 meters in a
18 MUSHROOM BUSINESS
year and it can absorb lots of CO2. It has not been tested yet in Agaricus cultivation though. In the midst of the presentations, a Q&A was done with Bart de Leeuw, Bart Driessen, and Theo Roosenboom and Deeva Linde from Mas- terLab, who were able to answer questions to all technical NIR related questions.
In the afternoon, the Nesco and Heereco farms were visited, where the latest harvesting mechanization innovations from GTL Europe and Christiaens Group respectively could be admired. The day ended with a BBQ in Venlo.
Visit to Sylvan On the last day, the participants were welcomed at the Sylvan spawn plant in horst. After the tour, they got a first peek around the new tes- ting facility of Sylvan, a mere five minutes away from the factory. For those who wanted to end the Workshop in a festive mood, they could stay for the official opening of the facility (see Mushroom Business 126 – also for the group photo of the Workshop participants).
In short, an instructive and pleasant three day meeting that is certainly worth repeating.
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