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OfflineSkoll
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Registered: 02/11/15
Posts: 37
Loc: Canada
Last seen: 8 years, 11 months
Could somebody check my substrate calculation ?
    #21365705 - 03/05/15 11:36 AM (9 years, 10 months ago)

Im not sure ive got the amounts calculated right.

Aspen, wheat bran, gypsom substrate mix for pluerotus eryngii (king oyster)
Im using the quantities written by RR.
He was saying 15 cups of aspen chips and 15 cups of sawdust by volume, 2 cups of bran and 1 cup or gypsom.

At first I was thinking he meant 15 cups of chips then another 15 of sawdust. But then im wondering if its just 15 cups total mixed 50/50 ?

From there im using 18 gallons 68 L of substrate in total.
Roughly 287 cups in 68 L divided by 15 = 19 x 2 = 38 cups of bran, 19 cups gypsom.
34 L of that mix is sawdust 34 L chips.

In my head that seems correct... In reality who knows lol

I cant find suitable sawdust anywhere in my remote part of the world the nearest source is about 3 hours drive ine way. So I got small chips and im grinding 1/2 cup at a time by coffee grinder... This could take me hours.


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Offlineblojo02184
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Registered: 05/15/13
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Loc: Maine
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Re: Could somebody check my substrate calculation ? [Re: Skoll]
    #21365767 - 03/05/15 11:52 AM (9 years, 10 months ago)

Dunno that recipe, should have posted a link.

BUT, 1 cup gypsum is a butt load. So I would assume 30 cups of 50:50 dust:chips

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OfflineSkoll
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Registered: 02/11/15
Posts: 37
Loc: Canada
Last seen: 8 years, 11 months
Re: Could somebody check my substrate calculation ? [Re: blojo02184]
    #21365785 - 03/05/15 11:59 AM (9 years, 10 months ago)

Sorry heres the link: http://www.shroomery.org/forums/showflat.php/Number/6326496
Its RR's reply about 9 down I think. 30... Yeah that makes sense to me too. Its sort of nagging in the back of my mind.

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OfflineSkoll
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Registered: 02/11/15
Posts: 37
Loc: Canada
Last seen: 8 years, 11 months
Re: Could somebody check my substrate calculation ? [Re: Skoll]
    #21365814 - 03/05/15 12:08 PM (9 years, 10 months ago)

Based on 30 cups of 15 saw dust 15 chips my new calculation.

For 68 L

50/50 mix aspen chips/dust
9.5 cups gypsum
19 cups bran

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