In the 1980s we did receive from Claron, Vendôme/France, for New Year, a package with Antique Postcards about French Marl Cave Mushroom Growing
This postcard shows the hard work of harvesting inside such Marl Caves in France.
They have made ridge beds on the floor from their compost... covered with crushed marl.
Preparing the substrate: composting, then making ridge beds inside the caves.
The support culture of fungi is the compost, which serves as a food substrate to fungi.
It must be prepared. Compost is a mixture of horse manure (75%) and straw (25%). Manure and straw are not directly assimilated by the Paris champignon (button mushroom), for insufficiently being decomposed; the operation is therefore to obtain a rich compost fermentation of these two ingredients. Just click for more photos and info on the short link and click through...
Here you see a Mushroom Grower at the entrance of the cave...
Now the men proudly pose with their harvested mushrooms...
Showing off their harvest here and even a French kitty is posing in this picture!
They were the producers of Mushroom Spawn at the time...
Some unique history that I wanted to share with my readers!
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