Blood Meal

Nan's Nook : Archives : Substrate : Additives : Blood Meal
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Straw Tek  -    

By SYDYSTYK (Addict) on Friday, October 26, 2001 - 12:07 am:

where can i find blood meal?

By monkeyod (Monkeyod) on Friday, October 26, 2001 - 12:16 am:

Should be able to get it at home depot or any garden supply shop.

By Marx2k (Marx2k) on Sunday, October 28, 2001 - 10:27 pm:

What would you do with bloodmeal?

By Nan (Nanook) on Sunday, October 28, 2001 - 10:33 pm:

Additive for enriching the nitrogen content in Straw Tek.

See my Straw Tek Tips

By Marx2k (Marx2k) on Sunday, October 28, 2001 - 10:40 pm:

Hm. Is there a URL describing this? Or do you just pasteurize blood meal along with the rest of your casing for the straw and add when its time to case the straw?

By Nan (Nanook) on Monday, October 29, 2001 - 02:51 am:

Add it to the straw while it is soaking. Drain, refill with fresh water and pasteurize the straw 160-170*F for an hour or so. I never use more than one level tablespoon per 7-10 gallons of soak water. Blood Meal is hot and cannot be applied straight up. That is how I use it, though there are other ways (suppliment to compost pre-pastuerization)

Blood meal really is hot at 12% nitrogen. It only takes a little. Just a tad too much and you end up with all sorts of problems: slow colonization & contam city primarily.

Fruits like hell though :)

In fact this may be a good point to drop the distillation of my nitrogen additive experiences. Karna I hope you catch this...

Increasing the nitrogen levels in the substrate slow colonization... The more nitrogen, the slower it colonizes and the greater chance the enviroment will be more favorable for a contam over shroom mycelia.

But if you can nurse the substrate (and it makes no difference if it is PF substrate, compost, or plain straw) through 100% colonization and get the thing cased without being over run with contams... You tend to get larger fruits and more of them.

I do not advocate this practice for beginners. High nitrogen additives increase the chance of failure, and they generally slow things down.

Just an FYI, I replaced blood meal as an additive when I discovered dry sterilized worm castings. Worm castings at 1% nitrogen are much, much gentler and can be baked in an oven to sterilize, then ground with PF cakes. Dry sterlized worm castings provide moisture control during spawning and supplies ample nitrogen and trace nutrients to round up plain straw.

Shroom Glossary : Worm Castings

By quote: (Quote) on Saturday, January 19, 2002 - 04:18 pm:

i don't think i would put blood meal in a casing.
can anyone give me a good reason ?
the nitrogen consideration is not really significant, imo. these are not plants.
but blood meal could very easily attract various pests to attack the casing.
so why use it ?

By Marx2k (Marx2k) on Sunday, January 20, 2002 - 03:37 am:

Well at this point I am simply experimenting with various things. For instance, in the last casing I put bat guano instead of bloodmeal. In the next few batches I will probably try something else. The only constants I have are peat moss, a tiny bit of vermeculite, worm castings and gypsum/lime... anything else is experimental :)

By quote: (Quote) on Sunday, January 20, 2002 - 03:40 am:

o i c.
i think you'll find blood meal to be a poor additive in any significant amount, as it really needs to be composted before this kind of use.