Homesteader
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oh hell no,i use 2lbs in a raised bed 2ft by 12 ft,rock dust is way over rated and price is up there with the hipe,i amend with meals and throw a little azomite in every winter and im done,let that soil work with compost to feed me,lmaoAnalysis of azomite shows trace amounts of cadmium but in the amounts people use, I question how realistic those numbers would be when people are using cups of the stuff in a single grow bag.
Cadmium in super rock phos would depend on the source. Some areas in Northern Africa are incredibly high but to know where your rock comes from seems like a difficult task.
i use 1;1;1 method,1 5 gal bucket peat,1 compost,1 bucket half and half perlite and vermiculite,add half cup blood,1/2 bone meal,1/2 cup azomite,works real good ,still fluffy but not if you dig,then i top dress ewc,barly malt and steel oats in once a month with my magic plants in tent,i feed extreme blend with a 1/8 tsp of fulvic acid and that the whole grow,also forgot 1 tsp of humic acid with the once a month feed,thats it,compost is were it at for plants i believeMy Soil Prof. always said as soon as your pH drops to the 5s metals will start coming loose in your soil and lead to toxicity. This makes me wonder about peat based potting mixes that are only kept in the acceptable pH range by lime buffering it up out of the 5s. Almost every "what's this deficiency" post lately where promix or similar peat based potting mix is used looks like metal tox to me. I have bad luck with the stuff unless I mix it 50/50 with perlite; but, if water is stagnant in the least, leaves burn just like a pH drop metal tox. I'm guessing if it burned the leaves it's still in 'em.....no?
Analysis of azomite shows trace amounts of cadmium but in the amounts people use, I question how realistic those numbers would be when people are using cups of the stuff in a single grow bag.
Cadmium in super rock phos would depend on the source. Some areas in Northern Africa are incredibly high but to know where your rock comes from seems like a difficult task.
Check out tennessee brown rp!
I think the Tennessee brown is soft rock unless I am mistaken, which is the leftovers after leaching from mining high grade ore used for super rock phos. It is my understanding that this would be the lowest levels of heavy metals of all rock phos but I wasn't able to find any analysis online.
Very interesting. AKA Fluorapatite. I guess that name is mud lately so lets call it Tennessee brown:). Looked clean on heavy metals to me though.https://www.google.com/url?sa=t&sou...FjAAegQICRAB&usg=AOvVaw0ofThFuUfax8EutUL5fg6d
You can checkout these guys..they might test it
Glad I am not one of the only ones to be concerned with heavy metals in amendments. I always look up anything I plan on putting in the soil on Oregon Department of Ag. They have a very strict program and seem to test regularly/put things on stop sale that are misadvertised or dangerous.
On a side note, time for a theory:
Cadmium stress/toxicity induces thiol production in plants (the skunk/rotten egg/garlic/whatever smell, etc). While no one has ever tested for thiol production in cannabis I propose that the reason we smell skunk is a response to cadmium levels in the soil.
On that note, I don't think "roadkill skunk" is really a thing, I think there were just certain plants that had a strong propensity to produce thiols in response to cadmium rich diets. If you were growing with shitty fertilizers or on land with high cadmium levels you would certainly see a difference in the flower.
Thoughts?
Thought sulfur does that? I think coot was saying that in an interview, someone posted it on here...
On a side note, time for a theory:
Cadmium stress/toxicity induces thiol production in plants (the skunk/rotten egg/garlic/whatever smell, etc). While no one has ever tested for thiol production in cannabis I propose that the reason we smell skunk is a response to cadmium levels in the soil.
On that note, I don't think "roadkill skunk" is really a thing, I think there were just certain plants that had a strong propensity to produce thiols in response to cadmium rich diets. If you were growing with shitty fertilizers or on land with high cadmium levels you would certainly see a difference in the flower.
Thoughts?
i came from dirt ,i live from dirt,all you eat comes from dirt,same as a animal,im not on the band wagon of hugging trees and poor little mister cow or pig,just down to earth kind fellow that dont get mixed up with society and its bull shit of studies and then later we made a mistake shit,this forum is for opinions ,when folk write stuff it is there opinion and just theres,you spoke yours,i aint hating on you,from decades of experience ive learned to sheer away from all the gadgets and sstuff,blood and bone has been around since the beginning of time,most soil you walk on has the blood of a distant relative and the grass is still green,before the NPK labeling this is what we used and thats my old school methods,im 59 and not dead yet,society has problems with seeing from both sides of the glass,i can see both sides and threw it,life made me that way,heavy metals in my soil,crap i worry more about driving down the road,on a fixed budget one day you will find that you use what works instead of some study folks did just for a job and funding to stay working,i completly disagree with you and have to say im glad you feel the way you do about your body,hold true to it and live to 110,me i dont sweat that stuff,i knew at age 14 when i was on my own i would die,it really is the only thing humans kinda have say in how and when ,but closing think of your body as the soil it buffers and takes only what it wants and all the boasters in the world wont change that,im not organic or no till im a gardener that feed 7 grown folks from what was provided to me from a higher source,last i knew blood and bone and azomite rather natural or mined is organic though,ive seen you in the organic section preaching the same crap and hope you have followers that buy it all ,but to each there own ,if we were all the same it would be a very boring world,if the science was all that how come the very best medicine this earth has ,wild lettuce ,cant be explained ,reason is it not meant to be as are a whole lots of things ,most things are for use not study because thats what it is study with no end.I know this post is old but wow come you add blood and bone meal? Its slaughterhouse waste. If your trying to grow organic and healthy why adding dried blood scraped off a slaughterhouse floor?
Fish bone meal better than bone meal.
Alfalfa meal, worm castings, and or fish meal has more than enough nitrogen in it, you could cut blood meal out of the equation.
As for azomite.
"This is good stuff and is just a "brand" name rock dust that has all the elements from A-Z hence Azomite.... thing is, that also includes heavy metals. While I'd use this in the veggie garden, many will avoid this in the medicine garden."
Why bother growing organic and healthy if you gonna rock heavy metals and slaughterhouse waste. It makes zero sense. Theres alternatives. Good on you for getting started in the right direction tho
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