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whiterasta
Day careobserver

Registered: 04/09/02
Posts: 1,780
Loc: Oregon
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Re: Growing with Moisture Plus. [Re: Suntzu]
#2798423 - 06/16/04 08:55 AM (19 years, 11 months ago) |
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poly acrimide is quite stable so it would take some extreme enzymatic action to effect it in the short term.problems may arise from repeated use of the same crystals,such as cleaning up the moisture crystals and reusing them for casing.Just be sure they say they are safe for vegetable growth and they are pretty much guaranteed to have been thoroughly tested for safety.I personally prefer coir/verm/sand(trace) for casing with great results and little contamination WR
-------------------- To old for this place
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Suntzu
Geek


Registered: 10/14/99
Posts: 1,396
Last seen: 1 month, 16 days
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Re: Growing with Moisture Plus. [Re: whiterasta]
#2798511 - 06/16/04 09:47 AM (19 years, 11 months ago) |
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I've seen crystals that are specifically labeled 'not for food plants'. I also found this interesting:
-------------------------------------------------------------------------------------------------- Polyacrylamide is designated a non-toxic additive and that may explain why there has been little concern over its accumulation in food crops. Of course polyacrylamide may be contaminated with its toxic building block, acrylamide, and for that reason a limit of 500ppm acrylamide in polyacrylamide preparations has been arbitrarily determined to be acceptable for use in agriculture or water treatment. Furthermore, the polyacrylamide preparations (PAM) used in irrigation is most frequently a copolymer associated with acrylic (3) or other polymer plastic to provide stability, the polyacrylamide used in water treatment is often the co-polymer while the product used in pesticide formulations is protected as a trade secret but is likely to be a co-polymer.
It has been reported that PAM hydrogels degrade to release acrylamide and acrylate (4)[acrylate is a known teratogen] and corporate Material Data Safety Sheets sometimes indicate that acrylamide is a foreseeable degradation product of PAM and that acrylonitirile (a mutagen and carcinogen) and cyanide are thermal decomposition products of polyacrylamide super absorbent (5). There are studies showing that acrylamide is released from polyacrylamide after exposure to light and elevated temperature (6,7) while other studies concluded that acrylamide is not released from polyacrylamide during degradation (8,9). Glutarimide (a component of the drug thalidomide) a pharmacologically active compound was identified as a significant breakdown product of heated polyacrylamide and the authors of that study stressed the need for fuller study of the breakdown products of polyacrylamide (9). There seems to be a clear-cut difference of opinion over the breakdown products of polyacrylamide. The authorities who maintain that acrylamide is not a breakdown product of polyacrylamide stress that those who identify acrylamide as a breakdown product do not find the chemical as a large proportion of the breakdown products of polyacrylamide. That seems to be a specious argument, as if the thermal degradation products dioxin or polyaromatic hydrocarbons are inconsequential because they are produced in relatively small amounts when they are among the most dangerous pollutants known. Moreover, the studies claiming to find little or no acrylamide in the breakdown products of polyacrylamide seem to have ignored the fact that the materials used commercially are most frequently co-polymers of acrylic acid or other polymers and the actual breakdowns usually take place on the surface of plant roots, leaves or stems or in the soil matrix. --------------------------------------------------------------------------------------------------
Sounds like science to me! Some think it does pose a hazard, some do not. All considered, the research on actual mushrooms seems the most relevent to this community. And working with 'edible' mushrooms, they were likely testing for a larger consumption mass than one would eat of blue-stainers
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Xray_Salami
Registered: 03/08/02
Posts: 62
Last seen: 1 year, 4 months
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Re: Growing with Moisture Plus. [Re: Suntzu]
#2799947 - 06/16/04 05:05 PM (19 years, 11 months ago) |
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That's awesome news Suntzu, you really made my day with that info. 
This is my first time working with Hawaiian and Lipa Yai and so far it has been a lot of work, leaving me with very little free time. I have been harvesting when I go to bed and harvesting again when I wake up 6 hours later. Of course there are also those that like to wait until it's the middle of the day before they need picking. Timing is a huge factor. Every time I look at my casings there are more pins, and more mushrooms that need picked. So far they have been growing from pin to mature mushroom in 4-6 days.
I have been taking alot of pictures though so I can do a complete write up of what I did. Then I will post it in the grow log forum. I have found that the mushrooms definately do not have a problem drawing the moisture from the crystals. The above casing hasn't been given the greatest TLC in the world to show how easy and resistant to contamination this method is. - Regular tap water has been used at all times. - No special hand washing procedures. - No sterilization of the casing tray or casing material. - Nothing was sprayed into the air, like Lysol. - Fans are constantly running in the room even while pouring the popcorn into the trays. - I did not sterilize any utensils I used for the casing materials or to remove the popcorn from the jars.
This doesn't mean that you can just forget about sterile procedures though. Even if you don't have contamination problems it's always good, at the very least, to practice cleanliness and basic hygiene in this hobby.
I also have been working on a sort of hydroponic casing. I will complete that experiment though before I post my results. That way I don't leave anybody hanging. Don't flame this idea though, because I already know it works.
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FirstAvailable
enthusiast


Registered: 02/14/04
Posts: 728
Last seen: 9 years, 7 months
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Re: Growing with Moisture Plus. [Re: Xray_Salami]
#2948308 - 07/31/04 11:47 AM (19 years, 9 months ago) |
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Yesterday I saw these crystals in another thread and did a little searching. I stumbled across this product. It has those crystals mixed in with peat moss, perlite and "organic materials" that I assume are there to make a nice PH level. It also says that there is some sort of plant food mixed in there. Would this effect anything?
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MeSaUsA
journeyman
Registered: 01/26/02
Posts: 88
Last seen: 19 years, 2 months
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I have been using moisture plus for about a month now after first reading this post. I have been doing some reading about these potassium polyacrylate polyacrylamide copolymers. I am going to try a little experiment with some poo watet and or honey water. Wouldnt it be sweet if these moisture crystals would aid in myc cloning, mush growing. From what i have found is the crystals have helped in repeling contamin. I have been fairly slopy with my last couple casings toped with moisture plus. Suprisingly no contamin, although some myc has regresed or died from what i think is over watering
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JSshroom
dont be paranoid, just aware

Registered: 06/16/05
Posts: 825
Loc: I love that spore drop
Last seen: 6 months, 2 days
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Re: Growing with Moisture Plus. [Re: MeSaUsA]
#5751227 - 06/14/06 09:13 PM (17 years, 11 months ago) |
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well I sterilize my casing. i am looking at using these as an additive to the 50/50+ can these things be hydrated mixed with the casing and PC'd 90-120 minutes
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Psychoslut
The Mother Fucking Bear-o-dactyl

Registered: 12/10/02
Posts: 20,917
Loc: all up in ya
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Re: Growing with Moisture Plus. [Re: Xray_Salami]
#5753063 - 06/15/06 10:37 AM (17 years, 11 months ago) |
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They sell water crystals at the pet store, it doesnt have anything harmfull in it. It is used to water crickets, crabs, and frogs.
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[quote]KristiMidocean said: Good now thats clear.WHO FUCKING CARES. If I am fat u all keep pointing it out like its suppose to be a secret.LIke u really have nothing better to do then make fat jokes. If o know its like I do I know yall can come up with NEW AND BETTER SHIT . This shit is old and boring . I left in the first place cause this shit got boring not because of the fat jokes . Fat jokes dont bother me but seriously its old[/quote]
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