I was told that there is Cannabis growing on soil that is contaminated with heavy metals like lead and other heavy chemicals, which are used as fertilizers. Is this true? Can these poisonous chemicals get into our bodies through the smoke or you'd have to eat the plant?
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CD Moderators: nepalnt21
Cannabis and contaminants (heavy metals in the soil)?
- Thread starter vgoulart
- Start date
Egzoset
Bluelighter
Salutations VGoulart,
There's got to be at least some truth to it because i remember hearing on TV news that they considered growing hemp or cannabis (?) when a Japanese nuclear plant was damaged by a stunami. Also, i vaguely recall about reading something somewhere about a radioactive element being able to stimulate roots, somehow...
Well, since you make it sound like you smoke then why care about this at all? In any case, i learned very recently that there are companies growing cannabis inside of mines (deep down underground!) for security reasons, or maybe that's still only a project on blueprints... But if they're at it already then i guess they must import a nutritive soil from the surface, hence i wonder about cultivating in such an odd environment - unless they need to pratice in order to prepare for growing the "evil weed" on the moon?
As you may have figured by yourself at this point, i'm afraid the only way to be absolutely confident it's effectively safe would have a garden, which in Canada sounds increasingly problematic. Though you may have more options.
There's got to be at least some truth to it because i remember hearing on TV news that they considered growing hemp or cannabis (?) when a Japanese nuclear plant was damaged by a stunami. Also, i vaguely recall about reading something somewhere about a radioactive element being able to stimulate roots, somehow...
Well, since you make it sound like you smoke then why care about this at all? In any case, i learned very recently that there are companies growing cannabis inside of mines (deep down underground!) for security reasons, or maybe that's still only a project on blueprints... But if they're at it already then i guess they must import a nutritive soil from the surface, hence i wonder about cultivating in such an odd environment - unless they need to pratice in order to prepare for growing the "evil weed" on the moon?
As you may have figured by yourself at this point, i'm afraid the only way to be absolutely confident it's effectively safe would have a garden, which in Canada sounds increasingly problematic. Though you may have more options.
AFOAF Chemist
Bluelighter
- Joined
- Dec 23, 2013
- Messages
- 62
Marijuana is called weed for a reason. It grows like a weed. In fact it is one of the most aggressive weeds there is. Grow it in a dandy lion patch and it will kill the dandy lions.
Plants are amazing at filtering things. They take what they need and nothing else. They will not "soak up" lead and such. About the only reason a plant will wither or suffer from nutrient burn is if there isn't enough, or too much of something it does use.
Manganese is a good example.
Plants are amazing at filtering things. They take what they need and nothing else. They will not "soak up" lead and such. About the only reason a plant will wither or suffer from nutrient burn is if there isn't enough, or too much of something it does use.
Manganese is a good example.
pmoseman
Bluelighter
Well it doesn't sound like AFOAF knows what they are talking about at all.
This is called bio-accumulation and some plants (broccoli, sunflower) are used to clean heavy metal (cadmium, lead) out of contaminated soil. It is a complex science.
Marijuana is not the best at soaking up contaminants, but contaminated soil presents a potential problem.
This is called bio-accumulation and some plants (broccoli, sunflower) are used to clean heavy metal (cadmium, lead) out of contaminated soil. It is a complex science.
Marijuana is not the best at soaking up contaminants, but contaminated soil presents a potential problem.
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AFOAF Chemist
Bluelighter
- Joined
- Dec 23, 2013
- Messages
- 62
However I don't pretend to know everything. All I can say is what I've learned from my experience. I've practically tried to kill my babies before and they just don't die.
That and any semi experienced grower knows the final two weeks of flowering you spend flushing which removes any ferts, and other chemicals from the plant itself.
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pmoseman
Bluelighter
Flushing starves the plant of nutrients. How does this remove contaminants?
Nikki_Botwin
Greenlighter
Well, this is a total myth, unless you are getting your soil in a contaminated area, yourself, by hand. Any packaged soil you get is safe, even if it sucks for maximizing your plants. Soilless is best, Pro-Mix BX with mychorzis (sp.). You simply add dolomite line, diatomatious earth, azomite and chunky perlite. A very good medium for your plants and simple. While many "popular nutes" are hyped to the max, wrongly so, too, none are harmful! That would be counter productive. I recommend DynaGro products. I use Foliage Pro, Pro-Tekt, Mag-Pro, in flower, to that, I add Humboldt Nutrients' Sea Cal. An occassional dash of bloom booster in flower.
pmoseman
Bluelighter
This is precisely what the original post was asking. It is a fact. Growing cannabis in heavy metal contaminated soil will produce a heavy metal contaminated plant which can not be purified, short of fractionating the plant.Nikki said:
They grew it in Russia to clean up Chernobyl.
It is a problem for smokers.