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Weedblock is made out of polypropolene.
http://www.easygardener.com/pdf/EG_Landscape_Fabric_MSDS.pdf
4' x 220' = $45
If you got more time than money, worth a shot. Especially if you want to experiment with different pot sizes for transplanting and such, and don't want to spend a shit ton of dough.
You really start pumping them out after you've made the first 50.
http://www.easygardener.com/pdf/EG_Landscape_Fabric_MSDS.pdf
4' x 220' = $45
If you got more time than money, worth a shot. Especially if you want to experiment with different pot sizes for transplanting and such, and don't want to spend a shit ton of dough.
You really start pumping them out after you've made the first 50.
Wikipedia references. lol
Did some of you miss the most impostant sentence in the link by Bobblehead.
"They have not produced their testing methods and data, and many organizations feel this was an attempt to discredit the use of reusable bags [26]."
Sorry, but I dont formulate opinions based on junk science that is not subject to peer review.
Show me a legit study, and I'll bite. Hyperbole and scare mongering is not science.
Did some of you miss the most impostant sentence in the link by Bobblehead.
"They have not produced their testing methods and data, and many organizations feel this was an attempt to discredit the use of reusable bags [26]."
Sorry, but I dont formulate opinions based on junk science that is not subject to peer review.
Show me a legit study, and I'll bite. Hyperbole and scare mongering is not science.
We're not talking about the same thing... The fabric pots are made from polypropolene or similar fabrics. Apparently they're safe for use with plants.
Those reusable bags are made out of w/e material, + dye and w/e other shit they put in them...
Now when you go to flush your plants, you don't think that flush is going to pull chemicals out of the bag and bring them into the root-zone? Or say using drip-clean, a product that is made to bond with other ions, and pull them into the plant...
I read that... but I've also taken chemistry and I know a thing or 2 about how China does business... so I would say it's probable. Not all bags are going to have the lead, but there will be that batch that Joe Blow buys and poisons his plants thinking that they were a good cheap alternative.
I just heard a report about something that came from china with lead paint...
And Bloomberg and USA today are credible sources... so if Wiki is quoting Bloomberg, I would take the information as reliable. It's all in context...
People should be careful of who and where they get there information. A lot of people of the internet don't have a clue what they're talking about.
Lead, Alar, BPA, Radon, DDT, arsenic in treated wood (CCA), Ebola, flesh eating bacteria, AIDS, etc.
If you believe the scaremongering crowd, shouldn't you be dead already?
http://www.extension.umn.edu/distribution/horticulture/DG2543.html
Lead in Garden Soils and Plants
The most serious source of exposure to soil lead is through direct ingestion (eating) of contaminated soil or dust. In general, plants do not absorb or accumulate lead. However, in soils testing high in lead, it is possible for some lead to be taken up. Studies have shown that lead does not readily accumulate in the fruiting parts of vegetable and fruit crops (e.g., corn, beans, squash, tomatoes, strawberries, apples). Higher concentrations are more likely to be found in leafy vegetables (e.g., lettuce) and on the surface of root crops (e.g., carrots).
Since plants do not take up large quantities of soil lead, the lead levels in soil considered safe for plants will be much higher than soil lead levels where eating of soil is a concern (pica). Generally, it has been considered safe to use garden produce grown in soils with total lead levels less than 300 ppm. The risk of lead poisoning through the food chain increases as the soil lead level rises above this concentration. Even at soil levels above 300 ppm, most of the risk is from lead contaminated soil or dust deposits on the plants rather than from uptake of lead by the plant.
So you can safely grow veggies in soil with lead concentrations approaching 300 ppm, but using a bag which may contain 100 ppm lead to contain your soil is gonna kill you?
I've been an environmental professional for 17 years (a few chemistry classes as well) and generally understand the effect of lead in the environment. I've performed several preliminary assessments/site inspections (PA/SI) and remedial investigation/feasability studies (RI/FS) at federal firing ranges contaminated with lead under the CERCLA process. Lead really isn't an issue affecting human health until you get over 400 ppm in soil. You have to ingest the stuff to get sick (eat the dirt). It's not very soluble and binds to organic material in the soil. Once bound to organic cations, it's not getting loose.
Let's please dismiss lead in shopping bags as an issue. Even if it's there, it's not going to end up in your herb.
If you believe the scaremongering crowd, shouldn't you be dead already?
http://www.extension.umn.edu/distribution/horticulture/DG2543.html
Lead in Garden Soils and Plants
The most serious source of exposure to soil lead is through direct ingestion (eating) of contaminated soil or dust. In general, plants do not absorb or accumulate lead. However, in soils testing high in lead, it is possible for some lead to be taken up. Studies have shown that lead does not readily accumulate in the fruiting parts of vegetable and fruit crops (e.g., corn, beans, squash, tomatoes, strawberries, apples). Higher concentrations are more likely to be found in leafy vegetables (e.g., lettuce) and on the surface of root crops (e.g., carrots).
Since plants do not take up large quantities of soil lead, the lead levels in soil considered safe for plants will be much higher than soil lead levels where eating of soil is a concern (pica). Generally, it has been considered safe to use garden produce grown in soils with total lead levels less than 300 ppm. The risk of lead poisoning through the food chain increases as the soil lead level rises above this concentration. Even at soil levels above 300 ppm, most of the risk is from lead contaminated soil or dust deposits on the plants rather than from uptake of lead by the plant.
So you can safely grow veggies in soil with lead concentrations approaching 300 ppm, but using a bag which may contain 100 ppm lead to contain your soil is gonna kill you?
I've been an environmental professional for 17 years (a few chemistry classes as well) and generally understand the effect of lead in the environment. I've performed several preliminary assessments/site inspections (PA/SI) and remedial investigation/feasability studies (RI/FS) at federal firing ranges contaminated with lead under the CERCLA process. Lead really isn't an issue affecting human health until you get over 400 ppm in soil. You have to ingest the stuff to get sick (eat the dirt). It's not very soluble and binds to organic material in the soil. Once bound to organic cations, it's not getting loose.
Let's please dismiss lead in shopping bags as an issue. Even if it's there, it's not going to end up in your herb.
http://beta2.tbo.com/business/break...investigation-reusable-grocery-bags-ar-14679/
Walmart bags were found to contain de-minimus levels of lead.
Walmart bags were found to contain de-minimus levels of lead.
I'm just saying if they've been shown to have lead, what other chemicals do they have? This is going to vary on a bag to bag basis, depending on the manufacturers and where they sourced their materials... One day the company is going to find a cheaper dye and start using it w/o telling anyone, until one day it comes up on the nightly news... Then they'll shut down, and start up again under another name.
Not all of the re-usable bags are gong to be toxic, maybe a good majority are fine... but there will be a % that are toxic imo. Off-gassing PVC was an issue before like DHF mentioned. It doesn't have to be lead.
Not all of the re-usable bags are gong to be toxic, maybe a good majority are fine... but there will be a % that are toxic imo. Off-gassing PVC was an issue before like DHF mentioned. It doesn't have to be lead.
FWIW, I just purchased six #5 smart pots.
Just doing some mythbusting of lies spread by the liberal media propaganda machine.
I encourage others to do a little research before formulating opinions of what they have read in the media (and forums) as well.
Cheers
Just doing some mythbusting of lies spread by the liberal media propaganda machine.
I encourage others to do a little research before formulating opinions of what they have read in the media (and forums) as well.
Cheers
Are you going to be documenting your experiment? I would be curious to see a side by side with the SP being the control and w/e reusable bag you choose to use as the tester. Maybe try different reusable bags of the same size?
I might do that Bobble.
I bought the SP's for my first attempt at vert using a 400 CMH. The cab I have is a Mills Pride 30"x20"x72" wardrobe, and it seems a bit small for a vert setup. Doing some testing of temps in the bare cab right now. I'm struggling to get the temps below 90 atm. I still need to get a honeywell fan below the bulb.
Considering a 40"x40"x72" tent for a little more room between the bulb and plants.
I bought the SP's for my first attempt at vert using a 400 CMH. The cab I have is a Mills Pride 30"x20"x72" wardrobe, and it seems a bit small for a vert setup. Doing some testing of temps in the bare cab right now. I'm struggling to get the temps below 90 atm. I still need to get a honeywell fan below the bulb.
Considering a 40"x40"x72" tent for a little more room between the bulb and plants.
Good luck Sgt. Stedenko, looking forward to your grow thread!
supersmallgiant
Member
About the whole lead thing... I saw something on tv the other day that said dog toys have 60 times the amount of lead as a comparable children's toy since there is no regulation on the dog toy. Kind of interesting and I think somewhat relevant. I can't imagine there is any regulation on any of these bags right?
And to get away from the lead debate... I love the fact that the smart pots can be squished into any shape I need. I use them in ebb and flow tables and can squeeze a bunch in the veg table and then spread them out on the flowering tables when the time comes. Being soft is really invaluable to me.
And to get away from the lead debate... I love the fact that the smart pots can be squished into any shape I need. I use them in ebb and flow tables and can squeeze a bunch in the veg table and then spread them out on the flowering tables when the time comes. Being soft is really invaluable to me.
Euphrates
Member
Has anyone noticed spotting towards the bottom of there pots - at anytime.
I had earlier started some tomato plants that where in smart pots indoors to get ready for the season, and a couple days before I was going to put them out, I noticed some spotting more towards the bottom of the smart pot - it was white, with a slight amount being tan brown. It also seemed to of come off in a somewhat slight powdery fashion when scratched. I am not sure what this is, I 've seen it on here w/ other peoples pots, tho rarely mentioned, I believe one person wasn't bothered by it.
Also, I use all organic soils and nutrients
Is this PM - I hit it w/ water and baking soda combined then put them out to do their jobs. Whatever this is, seems to happen kind of easily; I Had an adequate amount of ventilation, or so i thought.
I had earlier started some tomato plants that where in smart pots indoors to get ready for the season, and a couple days before I was going to put them out, I noticed some spotting more towards the bottom of the smart pot - it was white, with a slight amount being tan brown. It also seemed to of come off in a somewhat slight powdery fashion when scratched. I am not sure what this is, I 've seen it on here w/ other peoples pots, tho rarely mentioned, I believe one person wasn't bothered by it.
Also, I use all organic soils and nutrients
Is this PM - I hit it w/ water and baking soda combined then put them out to do their jobs. Whatever this is, seems to happen kind of easily; I Had an adequate amount of ventilation, or so i thought.
supersmallgiant
Member
Salt build up?
L
laylow
just wanted to add that airpots on a commercial basis suck ass...
having to undo every single one and roll the root out then make them again like the first time you got them... sore thumbs and 5 times as long as emptying a normal pot SUCK'S...
having to undo every single one and roll the root out then make them again like the first time you got them... sore thumbs and 5 times as long as emptying a normal pot SUCK'S...
T
TurboFish
smart pots are alot cheaper, they will not spill water ALL out the sides when watered and they get amazing airflow, plus they have handles to move the plants around, and they make less of a mess since stuff cannot come out of the holes on the sides or bottom
L
laylow
if you take your time when watering then shit wont spill out and the root growth in AP's is also amazing the only down side i saw was the emptying of them at then end...
STRAINZ
Member
Not sure what size airpots u run, but I've found with my 5 gal. airpots I never have to undo then redo them! I simply (over a garbage can or dirt pile) hold the pot upside down and kinda beat the hell out of it if u will....hitting both sides of the pot while shaking. Again, this works for me with 5 gal. & I would imagine this could work up to prob 7 gal pots....& depending on how many pots u have it can be one hell of a workout!
L
laylow
150 x 2 gallon coco thick roots not coming out even if you put your feet either side and pull the roots out with your hand... surly if it just falls out then the dirt is not dense with roots you could use a smaller pot less medium less waste save moneys 
