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morbiddoctor
Frilly fungal fruiter



Registered: 07/05/09
Posts: 1,021
Loc: seattle, wa
Last seen: 2 years, 5 months
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Salt affecting substrate ie brands of coir
#23836963 - 11/15/16 09:21 PM (7 years, 2 months ago) |
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I've never had an issue with different brands of coir. Pet store, hydro, garden center, no source has been an issue. I've used many different ones and while there are some differences in the results I never thought that salt would be one of them.
The reason I bring up salt relates to my next sub. Today, I was about to purchase some coir offered by a garden center. The employee there mentioned that the cheaper stuff usually had more salt in it and that it may affect the plants he assumed I was growing. Never having heard about this, i wondered how it would affect mushrooms. I searched the forums to learn what others had discovered, but only learned that too much salt is bad, as it would be for plants. But nothing about the brand that i was looking at.
So I'm wondering two things, is down to earth brand coir working for people? And in what way should we select our substrates if salination is a potential issue? I don't want to purchase a bunch of potentially damaging sub without knowing the why or why nots. I haven't seen salts mentioned in many threads but wonder if there is a connection here.
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tump
ban the undead


Registered: 03/17/16
Posts: 2,383
Last seen: 6 years, 10 months
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Re: Salt affecting substrate ie brands of coir [Re: morbiddoctor]
#23836995 - 11/15/16 09:34 PM (7 years, 2 months ago) |
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Coir naturally has a high sodium content while processing it can be increased based on the water used. Its not a big problem , i once read a post 8 years old that argue that coir was more contaminate resistant because spores couldn't germinate in high sodium subs.
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Pastywhyte
Say hello to my little friend



Registered: 09/15/12
Posts: 37,810
Loc: Canada
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Re: Salt affecting substrate ie brands of coir [Re: tump]
#23837407 - 11/16/16 12:03 AM (7 years, 2 months ago) |
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The water used in retting is supposed to be fresh water but I have heard of brackish water being used sometimes. It's supposedly bad as the bacteria and fungal populations needed in the process are unable to break down the husk as effectively. You may notice a coarser coir which is more husk than pith. I guess the best thing to do is take note of what works and what doesn't. I use mostly pet grade coir these days tho I have had success with assorted brands purchased from hydro shops and garden centers.
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oakley
Stranger

Registered: 10/31/16
Posts: 55
Last seen: 2 years, 4 months
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Re: Salt affecting substrate ie brands of coir [Re: morbiddoctor]
#23837671 - 11/16/16 03:59 AM (7 years, 2 months ago) |
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Usually you won't have any problems with the salt content if you're not growing very sensitive plants such as carnivorous plants or some orchids.
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