MUSHROOM BUSINESS


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One of my clients in Iran has a mushroom farm numbering 16 rooms of 350 m2 on phase II blocks. The inoculated compost is sourced from a neighbouring com- poster. Production yields are about 15 tons of mushrooms a week. The blocks measure 0.24 m2 and weigh an average of 18 kg, so the yield is actually quite good. The casing soil comprises 25% BVB Euroveen and 75% of various local peat products, mixed with composted spent compost.


The blocks of compost are spawn run for 14 days.


After delivery they are placed on the shelves then neatly levelled by hand before being cov- ered with paper. When the casing soil has been applied (also by hand)


the mycelium often seems to have difficulty creating a good contact layer between the compost and the casing.


This sometimes caused problems with spraying the casing as the very low fraction of Euroveen material it contains meant it could not cope as well with a lot of water. The water retention capacity of Iranian peats cannot compare with the German peat used by Dutch casing soil suppliers. The solution was found in scraping away the top layer of the compost just before applying the casing soil.


This resulted in a better contact layer between the compost and casing soil. It improved the first flush which now gives more uniform pin outgrow. The advantage is a better mushroom spread over the blocks in the first flush and the pins are easier to steer to create a good spread.


I recently happened to visit Amidi Champ in Sevenum, where CNC had just started filling the rooms.


I noticed that the CNC machines also had a rake that slightly ruffles the upper layer to improve the effect of CAC.


Have the Iranians cleverly copied this idea? I tend to think so!


By Thei Staaks, Mushroom Advice Network theistaaks@gmail.com


OUT AND ABOUT Cleverly copied?


46 MUSHROOM BUSINESS


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